P4P800-E Deluxe: BIOS Chipset settings

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Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Hi

I've got
an Intel(R) Pentium(R) 4 CPU 3.00GHz Northwood,
2 Kingston DDR-SDRAM PC3200 à MBytes

CPU-Z reports:
Timings table
Frequency (MHz) 166 200
CAS# 2.0 2.5
RAS# to CAS# delay 3 3
RAS# Precharge 3 3
TRAS# 7 8

The Chipset settings are 'Auto'.

Should I set the settings 'Manual'?

TIA
p
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Looks like you have a problem Peter, they should be the same for both memory
sticks. I would manuallt set them to the settings on the right and see if
that works. With the Northwood P4 they should both be at 200Mhz.


"Peter Wagner" <vba@directbox.com> wrote in message
news:2rcr21F18edphU2@uni-berlin.de...
> Hi
>
> I've got
> an Intel(R) Pentium(R) 4 CPU 3.00GHz Northwood,
> 2 Kingston DDR-SDRAM PC3200 à MBytes
>
> CPU-Z reports:
> Timings table
> Frequency (MHz) 166 200
> CAS# 2.0 2.5
> RAS# to CAS# delay 3 3
> RAS# Precharge 3 3
> TRAS# 7 8
>
> The Chipset settings are 'Auto'.
>
> Should I set the settings 'Manual'?
>
> TIA
> p
>
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

No, all is allright.

The data of CPU-Z should understand in this way:
With 166 MHz the Kingston RAM runs with 2/3/3/7 and
with 200 MHz the Kingston RAM runs with 2.5/3/3/8.

That's O.K and logical!

CPU-Z reports the same for my MDT-RAM.

BTW I also use the 'Auto'-settings without any problems - my system with a
P4P800 is rock stable.


"Pete D" <no@email.com> wrote in message
news:CNb4d.289$5O5.276@news-server.bigpond.net.au...
> Looks like you have a problem Peter, they should be the same for both
> memory sticks. I would manuallt set them to the settings on the right and
> see if that works. With the Northwood P4 they should both be at 200Mhz.
>
>
> "Peter Wagner" <vba@directbox.com> wrote in message
> news:2rcr21F18edphU2@uni-berlin.de...
>> Hi
>>
>> I've got
>> an Intel(R) Pentium(R) 4 CPU 3.00GHz Northwood,
>> 2 Kingston DDR-SDRAM PC3200 à MBytes
>>
>> CPU-Z reports:
>> Timings table
>> Frequency (MHz) 166 200
>> CAS# 2.0 2.5
>> RAS# to CAS# delay 3 3
>> RAS# Precharge 3 3
>> TRAS# 7 8
>>
>> The Chipset settings are 'Auto'.
>>
>> Should I set the settings 'Manual'?
>>
>> TIA
>> p
>>
>
>
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

No, all is allright.

The data of CPU-Z should understand in this way:
With 166 MHz the Kingston RAM runs with 2/3/3/7 and
with 200 MHz the Kingston RAM runs with 2.5/3/3/8.

That's O.K and logical!

CPU-Z reports the same for my MDT-RAM.

BTW I also use the 'Auto'-settings without any problems - my system with a
P4P800 is rock stable.


"Pete D" <no@email.com> wrote in message
news:CNb4d.289$5O5.276@news-server.bigpond.net.au...
> Looks like you have a problem Peter, they should be the same for both
> memory sticks. I would manuallt set them to the settings on the right and
> see if that works. With the Northwood P4 they should both be at 200Mhz.
>
>
> "Peter Wagner" <vba@directbox.com> wrote in message
> news:2rcr21F18edphU2@uni-berlin.de...
>> Hi
>>
>> I've got
>> an Intel(R) Pentium(R) 4 CPU 3.00GHz Northwood,
>> 2 Kingston DDR-SDRAM PC3200 à MBytes
>>
>> CPU-Z reports:
>> Timings table
>> Frequency (MHz) 166 200
>> CAS# 2.0 2.5
>> RAS# to CAS# delay 3 3
>> RAS# Precharge 3 3
>> TRAS# 7 8
>>
>> The Chipset settings are 'Auto'.
>>
>> Should I set the settings 'Manual'?
>>
>> TIA
>> p
>>
>
>
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Will that still run in dual mode properly?

"SpongeBob" <SpongeBob@freenet.de> wrote in message
news:41518664$0$13062$9b622d9e@news.freenet.de...
> No, all is allright.
>
> The data of CPU-Z should understand in this way:
> With 166 MHz the Kingston RAM runs with 2/3/3/7 and
> with 200 MHz the Kingston RAM runs with 2.5/3/3/8.
>
> That's O.K and logical!
>
> CPU-Z reports the same for my MDT-RAM.
>
> BTW I also use the 'Auto'-settings without any problems - my system with a
> P4P800 is rock stable.
>
>
> "Pete D" <no@email.com> wrote in message
> news:CNb4d.289$5O5.276@news-server.bigpond.net.au...
>> Looks like you have a problem Peter, they should be the same for both
>> memory sticks. I would manuallt set them to the settings on the right and
>> see if that works. With the Northwood P4 they should both be at 200Mhz.
>>
>>
>> "Peter Wagner" <vba@directbox.com> wrote in message
>> news:2rcr21F18edphU2@uni-berlin.de...
>>> Hi
>>>
>>> I've got
>>> an Intel(R) Pentium(R) 4 CPU 3.00GHz Northwood,
>>> 2 Kingston DDR-SDRAM PC3200 à MBytes
>>>
>>> CPU-Z reports:
>>> Timings table
>>> Frequency (MHz) 166 200
>>> CAS# 2.0 2.5
>>> RAS# to CAS# delay 3 3
>>> RAS# Precharge 3 3
>>> TRAS# 7 8
>>>
>>> The Chipset settings are 'Auto'.
>>>
>>> Should I set the settings 'Manual'?
>>>
>>> TIA
>>> p
>>>
>>
>>
>
>
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Yes, of course.


"Pete D" <no@email.com> wrote in message
news:lTj4d.613$5O5.132@news-server.bigpond.net.au...
> Will that still run in dual mode properly?
>
> "SpongeBob" <SpongeBob@freenet.de> wrote in message
> news:41518664$0$13062$9b622d9e@news.freenet.de...
>> No, all is allright.
>>
>> The data of CPU-Z should understand in this way:
>> With 166 MHz the Kingston RAM runs with 2/3/3/7 and
>> with 200 MHz the Kingston RAM runs with 2.5/3/3/8.
>>
>> That's O.K and logical!
>>
>> CPU-Z reports the same for my MDT-RAM.
>>
>> BTW I also use the 'Auto'-settings without any problems - my system with
>> a P4P800 is rock stable.
>>
>>
>> "Pete D" <no@email.com> wrote in message
>> news:CNb4d.289$5O5.276@news-server.bigpond.net.au...
>>> Looks like you have a problem Peter, they should be the same for both
>>> memory sticks. I would manuallt set them to the settings on the right
>>> and see if that works. With the Northwood P4 they should both be at
>>> 200Mhz.
>>>
>>>
>>> "Peter Wagner" <vba@directbox.com> wrote in message
>>> news:2rcr21F18edphU2@uni-berlin.de...
>>>> Hi
>>>>
>>>> I've got
>>>> an Intel(R) Pentium(R) 4 CPU 3.00GHz Northwood,
>>>> 2 Kingston DDR-SDRAM PC3200 à MBytes
>>>>
>>>> CPU-Z reports:
>>>> Timings table
>>>> Frequency (MHz) 166 200
>>>> CAS# 2.0 2.5
>>>> RAS# to CAS# delay 3 3
>>>> RAS# Precharge 3 3
>>>> TRAS# 7 8
>>>>
>>>> The Chipset settings are 'Auto'.
>>>>
>>>> Should I set the settings 'Manual'?
>>>>
>>>> TIA
>>>> p
>>>>
>>>
>>>
>>
>>
>
>
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

SpongeBob wrote:
> No, all is allright.
>
> The data of CPU-Z should understand in this way:
> With 166 MHz the Kingston RAM runs with 2/3/3/7 and
> with 200 MHz the Kingston RAM runs with 2.5/3/3/8.
>
> That's O.K and logical!
>
> CPU-Z reports the same for my MDT-RAM.
>
> BTW I also use the 'Auto'-settings without any problems - my system
> with a P4P800 is rock stable.

Mine is rock stable too, but can 'Auto' recognize the lowest values or will
it be better, one keys in lower values?

p
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Of course? Shouldn't they be matched?

"Frank Mennig" <frank.mennig@freenet.de> wrote in message
news:4151d704$0$32633$9b622d9e@news.freenet.de...
> Yes, of course.
>
>
> "Pete D" <no@email.com> wrote in message
> news:lTj4d.613$5O5.132@news-server.bigpond.net.au...
>> Will that still run in dual mode properly?
>>
>> "SpongeBob" <SpongeBob@freenet.de> wrote in message
>> news:41518664$0$13062$9b622d9e@news.freenet.de...
>>> No, all is allright.
>>>
>>> The data of CPU-Z should understand in this way:
>>> With 166 MHz the Kingston RAM runs with 2/3/3/7 and
>>> with 200 MHz the Kingston RAM runs with 2.5/3/3/8.
>>>
>>> That's O.K and logical!
>>>
>>> CPU-Z reports the same for my MDT-RAM.
>>>
>>> BTW I also use the 'Auto'-settings without any problems - my system with
>>> a P4P800 is rock stable.
>>>
>>>
>>> "Pete D" <no@email.com> wrote in message
>>> news:CNb4d.289$5O5.276@news-server.bigpond.net.au...
>>>> Looks like you have a problem Peter, they should be the same for both
>>>> memory sticks. I would manuallt set them to the settings on the right
>>>> and see if that works. With the Northwood P4 they should both be at
>>>> 200Mhz.
>>>>
>>>>
>>>> "Peter Wagner" <vba@directbox.com> wrote in message
>>>> news:2rcr21F18edphU2@uni-berlin.de...
>>>>> Hi
>>>>>
>>>>> I've got
>>>>> an Intel(R) Pentium(R) 4 CPU 3.00GHz Northwood,
>>>>> 2 Kingston DDR-SDRAM PC3200 à MBytes
>>>>>
>>>>> CPU-Z reports:
>>>>> Timings table
>>>>> Frequency (MHz) 166 200
>>>>> CAS# 2.0 2.5
>>>>> RAS# to CAS# delay 3 3
>>>>> RAS# Precharge 3 3
>>>>> TRAS# 7 8
>>>>>
>>>>> The Chipset settings are 'Auto'.
>>>>>
>>>>> Should I set the settings 'Manual'?
>>>>>
>>>>> TIA
>>>>> p
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Op Wed, 22 Sep 2004 23:37:46 +0200 schreef Peter Wagner:

> SpongeBob wrote:
>> No, all is allright.
>>
>> The data of CPU-Z should understand in this way:
>> With 166 MHz the Kingston RAM runs with 2/3/3/7 and
>> with 200 MHz the Kingston RAM runs with 2.5/3/3/8.
>>
> Mine is rock stable too, but can 'Auto' recognize the lowest values or will
> it be better, one keys in lower values?

Since your machine uses a clock speed of 200 Mhz (unless you overclock),
you should use the values stated for that speed: 2.5/3/3/8.

Take a look at the Tab Memory in CPU-Z, which tells you the timing your
memory actually uses (as opposed to the timing it *should* use, which you
can see in the Tab SPD, which is the one you reported here). If the timing
you see here is slower then 2.5/3/3/8, you can try setting the timing
manually. Otherwise just use Auto. Don't forget to test the memory
thoroughly though, for instance with memtest86, if you decide to change the
settings!

Mine ran at 2.5/4/4/8 using Auto setting, even though the RAM's SPD said it
should work at 2/3/3/6, so I set those values manually. Machine has been
rock solid at this setting for months now.

Wim
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Wim Zefat wrote:
> Op Wed, 22 Sep 2004 23:37:46 +0200 schreef Peter Wagner:
>

Wim

Thank you for your answer.

>> Mine is rock stable too, but can 'Auto' recognize the lowest values
>> or will it be better, one keys in lower values?
>
> Since your machine uses a clock speed of 200 Mhz (unless you
> overclock), you should use the values stated for that speed:
> 2.5/3/3/8.
>
> Take a look at the Tab Memory in CPU-Z, which tells you the timing
> your memory actually uses (as opposed to the timing it *should* use,
> which you can see in the Tab SPD, which is the one you reported
> here). If the timing you see here is slower then 2.5/3/3/8, you can
> try setting the timing manually.

They are the _same_.

But Kingston says:
HyperX Features:
Description Settings

400MHz (PC3200) 2-3-2-6-1 (CAS Latency 2)


What does this means?
Correlates this to 2/3/2/6/1?
But I think 1 instead of 8 can't be right?!
What is the correct order of this numbers?


In an other paper says Kingston:

Programmable Burst length (2, 4, 8)
Programmable Burst type (sequential & interleave)
Timing Reference: 2-3-2-6-1 at +2.6V


> Otherwise just use Auto. Don't
> forget to test the memory thoroughly though, for instance with
> memtest86, if you decide to change the settings!
>
> Mine ran at 2.5/4/4/8 using Auto setting, even though the RAM's SPD
> said it should work at 2/3/3/6, so I set those values manually.
> Machine has been rock solid at this setting for months now.

Fine.

>
> Wim

p
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Op Fri, 24 Sep 2004 08:19:43 +0200 schreef Peter Wagner:

>> Take a look at the Tab Memory in CPU-Z, which tells you the timing
>> your memory actually uses (as opposed to the timing it *should* use,
>> which you can see in the Tab SPD, which is the one you reported
>> here). If the timing you see here is slower then 2.5/3/3/8, you can
>> try setting the timing manually.
>
> They are the _same_.
>
> But Kingston says:
> HyperX Features:
> Description Settings
>
> 400MHz (PC3200) 2-3-2-6-1 (CAS Latency 2)
>
> What does this means?
> Correlates this to 2/3/2/6/1?
> But I think 1 instead of 8 can't be right?!
> What is the correct order of this numbers?

Read as 2-3-2-6 and forget the 1. Manufacturers use 5 numbers in the full
technical specification of memory chips, but only the first 4 are used for
setting the timings, which is why the last one is often left off.

> In an other paper says Kingston:
>
> Programmable Burst length (2, 4, 8)
> Programmable Burst type (sequential & interleave)
> Timing Reference: 2-3-2-6-1 at +2.6V

This probably means yours are 'selected' DIMM's. The numbers programmed
into the memory's SPD-chip represent 'safe' timings, which should always
work. You can sometimes get away with faster timings - and sometimes not.
'Selected' simply means that the manufacturer has tested the DIMM's at
faster timings and found that they can handle the speed.

(Yup, just looked at Kingston's site - see the bottom of the page with the
specifications: "All Kingston products are tested to meet our published
specifications. Some motherboards may not work at the published HyperX
memory speeds and timing settings." In other words: "It might work at the
speed we advertise, or it might not. If not, tough luck.")

It's up to you to decide if you want to try the faster settings. If it
works, you gain a little speed (don't expect more than something in the
order of 1 to 2 percent increase though). If it doesn't work at all and the
machine hangs, just turn it off and back on - the BIOS *should* notice the
machine did't start right the last time and automatically reset itself to
it's default settings, leaving you back where you were. (If it doesn't, you
may have to clear the CMOS to get the machine to start up again.)

If you do try it and it does work, it's advisable to run a memory tester
(memtest86 or similar) for an hour or so, to make sure the machine really
is stable at the new settings.

Wim
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Wim Zefat wrote:
> Op Fri, 24 Sep 2004 08:19:43 +0200 schreef Peter Wagner:
>
Wim

Thank you very much for your comprehensive explanation.

>
> It's up to you to decide if you want to try the faster settings. If it
> works, you gain a little speed (don't expect more than something in
> the order of 1 to 2 percent increase though).

So little?!

> If it doesn't work at
> all and the machine hangs, just turn it off and back on - the BIOS
> *should* notice the machine did't start right the last time and
> automatically reset itself to it's default settings, leaving you back
> where you were. (If it doesn't, you may have to clear the CMOS to get
> the machine to start up again.)

To open the case, remove the battery or to make a short? :-(

>
> If you do try it and it does work, it's advisable to run a memory
> tester (memtest86 or similar) for an hour or so, to make sure the
> machine really is stable at the new settings.

One can't detect errors w/o tester?

>
> Wim

p
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Op Fri, 24 Sep 2004 16:21:27 +0200 schreef Peter Wagner:

>> It's up to you to decide if you want to try the faster settings. If it
>> works, you gain a little speed (don't expect more than something in
>> the order of 1 to 2 percent increase though).
>
> So little?!

See http://www.tomshardware.com/motherboard/20040119/index.html
for a comprehensive test of DIMM's with different timings. According to
this, the difference will hardly be noticeable (for a P4 that is, it seems
to make slightly more of a difference, though still not much, for the
Athlon 64).

>> you may have to clear the CMOS to get
>> the machine to start up again.)
>
> To open the case, remove the battery or to make a short? :-(

Both, according to the manual. See section 2.6.1 - Clear RTC RAM. First
remove the battery, then move the jumper from pin 1-2 to 2-3. Wait ten
seconds, then put the jumper back the way it was and put the battery back.

>> If you do try it and it does work, it's advisable to run a memory
>> tester (memtest86 or similar) for an hour or so, to make sure the
>> machine really is stable at the new settings.
>
> One can't detect errors w/o tester?

Depends on how bad the errors are 😉 If it doesn't work at all, you'll
notice immediately - the computer won't even boot. But if you run the RAM
at the very edge of what it's capable of, it might produce ocaasional
errors - say just 1 or 2 bits wrong in an hour, or even less. That's enough
however to cause all sorts of mayhem - Windows sometimes hanging
unexpectedly or behaving strangely, applications and games which work most
of the time, but crash every once in a while without apparent reason and so
on. But since Windows and applications can crash for all sorts of reasons
(power fluctuations, hardware problems, driver problems and so on) - and
tend to crash on their own for no apparent reason once in a while anyway,
it can be hard to tell whether or not it's the memory which is at fault.

So it's always advisable to run a memory testing program for a while - that
way you'll know for sure whether or not the memory works perfectly. And
besides, memtest86 is free (you can download it from www.memtest86.com, or
a slightly different version from www.memtest.org), so all it'll cost you
is a bit of time. Just leave it running for an hour or so (or maybe even
overnight), then check whether it's noticed any errors. If not, you know
for certain the memory works A-OK.

Wim
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Wim Zefat wrote:
> Op Fri, 24 Sep 2004 16:21:27 +0200 schreef Peter Wagner:
>

>
> See http://www.tomshardware.com/motherboard/20040119/index.html
> for a comprehensive test of DIMM's with different timings. According
> to this, the difference will hardly be noticeable (for a P4 that is,
> it seems to make slightly more of a difference, though still not
> much, for the Athlon 64).

Thank you for the link.

BTW
Do you know how much the performance will rise, if a machine with a P4-3000
runs in dual-channel instead in single-channel modus?

[...]

>
>>> If you do try it and it does work, it's advisable to run a memory
>>> tester (memtest86 or similar) for an hour or so, to make sure the
>>> machine really is stable at the new settings.
>>
>> One can't detect errors w/o tester?
>
> Depends on how bad the errors are 😉 If it doesn't work at all, you'll
> notice immediately - the computer won't even boot. But if you run the
> RAM at the very edge of what it's capable of, it might produce
> ocaasional errors - say just 1 or 2 bits wrong in an hour, or even
> less. That's enough however to cause all sorts of mayhem - Windows
> sometimes hanging unexpectedly or behaving strangely, applications
> and games which work most of the time, but crash every once in a
> while without apparent reason and so on. But since Windows and
> applications can crash for all sorts of reasons (power fluctuations,
> hardware problems, driver problems and so on) - and tend to crash on
> their own for no apparent reason once in a while anyway, it can be
> hard to tell whether or not it's the memory which is at fault.

OK.

>
> So it's always advisable to run a memory testing program for a while
> - that way you'll know for sure whether or not the memory works
> perfectly. And besides, memtest86 is free (you can download it from
> www.memtest86.com, or a slightly different version from
> www.memtest.org), so all it'll cost you is a bit of time. Just leave
> it running for an hour or so (or maybe even overnight), then check
> whether it's noticed any errors. If not, you know for certain the
> memory works A-OK.

Thanks for the hints.

>
> Wim

p
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Op Sat, 25 Sep 2004 17:21:28 +0200 schreef Peter Wagner:

>> See http://www.tomshardware.com/motherboard/20040119/index.html
>> for a comprehensive test of DIMM's with different timings. According
>> to this, the difference will hardly be noticeable (for a P4 that is,
>> it seems to make slightly more of a difference, though still not
>> much, for the Athlon 64).
>
> Thank you for the link.
>
> BTW
> Do you know how much the performance will rise, if a machine with a P4-3000
> runs in dual-channel instead in single-channel modus?

Again, not as much as you might think. Memory bandwidth goes way up with
dual channel, but on the other hand, latency gets worse. Although the speed
increase is quite large in theory, the actual increase you can expect to
see in everyday use is a lot less. The concensus seems to be that you can
expect somewhere between 2.5 and 5 percent increase in speed of 'real
world' applications. See for instance:

http://www.gamepc.com/labs/view_content.asp?id=ddr400myths&page=5&cookie%5Ftest=1

Wim
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Wim Zefat wrote:
> Op Sat, 25 Sep 2004 17:21:28 +0200 schreef Peter Wagner:
>

Wim

Thank you.

>>
>> BTW
>> Do you know how much the performance will rise, if a machine with a
>> P4-3000 runs in dual-channel instead in single-channel modus?
>
> Again, not as much as you might think. Memory bandwidth goes way up
> with dual channel, but on the other hand, latency gets worse.
> Although the speed increase is quite large in theory, the actual
> increase you can expect to see in everyday use is a lot less. The
> concensus seems to be that you can expect somewhere between 2.5 and 5
> percent increase in speed of 'real world' applications. See for
> instance:
>
>
http://www.gamepc.com/labs/view_content.asp?id=ddr400myths&page=5&cookie%5Ftest=1

Thanks.
I've asked because my WinXPpro runs in the single CPU mode instead in the
multiprozessor Mode.
The reason is that I've replaced a PIII motherboard by the P4P800-E Deluxe.
WinXP couldn't recognize my mb as a dual-channel.
A new installation of WinXP would be necessary. But this isn't in my
interest. To much work to install all my programms again.

>
> Wim

p
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Op Sun, 26 Sep 2004 09:52:48 +0200 schreef Peter Wagner:

> I've asked because my WinXPpro runs in the single CPU mode instead in the
> multiprozessor Mode.
> The reason is that I've replaced a PIII motherboard by the P4P800-E Deluxe.
> WinXP couldn't recognize my mb as a dual-channel.
> A new installation of WinXP would be necessary. But this isn't in my
> interest. To much work to install all my programms again.

Single/dual channel and hyperthreading (multiprocessing) are two different
things.

Single/dual channel has to do with memory usage only. As the name implies,
in single channel you have only one 'channel' between the processor and the
memory. In dual channel (which only works if you have 2 (or 4) identical
DIMM's) you have two, which allows the processor to shovel (nearly) twice
as much data to/from memory in the same time. This obviously makes the
machine faster, though the 'real world' increase in speed is limited.

Take a look at the Memory Tab in CPU-Z. In the top right, after 'Channels'
you can see whether your machine runs in single or in dual channel mode.

Hyperthreading allows a P4 to behave as if you had two processors. The
advantage isn't quite as much as having two *real* processors, but it can
still make a lot of difference. Just how much advantage you get depends
mainly on the applications you use. Some don't benefit at all from
hyperthreading, while others can work up to 30 percent faster with
hyperthreading enabled.

You can tell whether your machine uses hyperthreading by opening Device
Manager and looking under Computer. If it says ACPI Multiprocessor PC,
hyperhreading is enabled. Or look under Processors - if it shows two P4's,
hyperthreading is on. You can also open Task Manager (press Ctrl-Alt-Del)
and look under Performance: if there are two processor-graphs,
hyperthreading is on. If there's just one, hyperthreading is off.

It's generally advisable to do a complete reinstall of Windows if you
change the motherboard, but if you don't want to do this, it should still
be possible to get hyperthreading to work. I've never done this, but I've
seen messages here from people who've gotten it to work. If I remember
correctly, all you have to do is to update the HAL from Device Manager. See
if you can find something on this subject in this group, or ask a new
question, such as 'how to get hyperthreading to work' and somebody will
probably be able to tell you in more detail.

Success!

Wim
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Wim Zefat wrote:

>
> Single/dual channel and hyperthreading (multiprocessing) are two
> different things.
>
> Single/dual channel has to do with memory usage only. As the name
> implies, in single channel you have only one 'channel' between the
> processor and the memory. In dual channel (which only works if you
> have 2 (or 4) identical DIMM's) you have two, which allows the
> processor to shovel (nearly) twice as much data to/from memory in the
> same time. This obviously makes the machine faster, though the 'real
> world' increase in speed is limited.
>
> Take a look at the Memory Tab in CPU-Z. In the top right, after
> 'Channels' you can see whether your machine runs in single or in dual
> channel mode.

It says 'Dual'.
Performance Mode: 'disabled' ->what's this and there's a way to switch to
'enabled'?

>
> Hyperthreading allows a P4 to behave as if you had two processors. The
> advantage isn't quite as much as having two *real* processors, but it
> can still make a lot of difference. Just how much advantage you get
> depends mainly on the applications you use. Some don't benefit at all
> from hyperthreading, while others can work up to 30 percent faster
> with hyperthreading enabled.
>
> You can tell whether your machine uses hyperthreading by opening
> Device Manager and looking under Computer. If it says ACPI
> Multiprocessor PC, hyperhreading is enabled.

Unfortunately it says only 'ACPI-PC'. :-(

> Or look under Processors
> - if it shows two P4's, hyperthreading is on.

It shows 2 P4's, but I thin HT is off, because...

> You can also open Task
> Manager (press Ctrl-Alt-Del) and look under Performance: if there are
> two processor-graphs, hyperthreading is on. If there's just one,
> hyperthreading is off.

It's just _one_. :-(

>
> It's generally advisable to do a complete reinstall of Windows if you
> change the motherboard, but if you don't want to do this, it should
> still be possible to get hyperthreading to work. I've never done
> this, but I've seen messages here from people who've gotten it to
> work. If I remember correctly, all you have to do is to update the
> HAL from Device Manager.

Yes, I've tried this, but there's only a KB article for Win2000 and not for
WinXP.
One should copy DLLs for Multiprocessors, but not all mentioned DLLs exists
for WinXP?!
And I don't found a KB for an exchange of HAL for WinXP.

> See if you can find something on this
> subject in this group, or ask a new question, such as 'how to get
> hyperthreading to work' and somebody will probably be able to tell
> you in more detail.

I've done.
Thank you for the hint.

>
> Success!

I hope so.

>
> Wim

p
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Op Sun, 26 Sep 2004 22:11:25 +0200 schreef Peter Wagner:

>> Take a look at the Memory Tab in CPU-Z. In the top right, after
>> 'Channels' you can see whether your machine runs in single or in dual
>> channel mode.
>
> It says 'Dual'.
> Performance Mode: 'disabled' ->what's this and there's a way to switch to
> 'enabled'?

OK, so your memory does work in dual channel mode.
Mine says 'enabled' - so it is possible 🙂

I can't find any information on what this is supposed to mean, but I
suspect it shows whether hyperpath is enabled (also called Performance
Acceleration Technology or PAT). This is a feature of the Intel 875
chipset, which squeezes just a bit more performance out of the memory. The
P4P800-E uses the slightly cheaper 865 chipset, which officially doesn't
have this feature. Unofficially, it's still there though. Intel just
disabled it - but Asus found a way to switch it back on. They're not
allowed to call it Performance Acceleration Technology, so they call it
Memory Acceleration Technology (or MAM) instead.

MAM is disabled by default. Look for Memory Acceleration Technology or MAM
under the advanced chipset-settings in the BIOS. This can be set to Auto
(which means disabled!) or Enabled. Again, if you switch it on, I'd
recommend running memtest86 for a while - you're squeezing more performance
out of the memory and it might not like that.. It's on on my system though
and I've never had a problem with it.

>> You can tell whether your machine uses hyperthreading by opening
>> Device Manager and looking under Computer. If it says ACPI
>> Multiprocessor PC, hyperhreading is enabled.
>
> Unfortunately it says only 'ACPI-PC'. :-(

Yup, sorry, that means hyperthreading is off.

>> Or look under Processors
>> - if it shows two P4's, hyperthreading is on.
>
> It shows 2 P4's, but I thin HT is off, because...

Strange, that. I'd have expected just one to show. Apparently Windows does
recognize the 'second' (virtual) P4, even though it doesn't use it.

>> It's generally advisable to do a complete reinstall of Windows if you
>> change the motherboard, but if you don't want to do this, it should
>> still be possible to get hyperthreading to work. I've never done
>> this, but I've seen messages here from people who've gotten it to
>> work. If I remember correctly, all you have to do is to update the
>> HAL from Device Manager.
>
> Yes, I've tried this, but there's only a KB article for Win2000 and not for
> WinXP.
> One should copy DLLs for Multiprocessors, but not all mentioned DLLs exists
> for WinXP?!
> And I don't found a KB for an exchange of HAL for WinXP.

I think you should be able to select ACPI Pc in Device Manager, go to the
Device driver tab, select Update driver and select the right HAL (ACPI
Multiprocessor). Windows should do the rest. Still, if I were you, I'd wait
and see if you get an answer to your new post from someone who has actually
done this - this is something you want to do right the first time, as you
can probably totally screw up Windows with this if you get it wrong ;-(

Good luck!

Wim
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Wim Zefat" <"wimz[nospam] wrote:
> I think you should be able to select ACPI Pc in Device Manager, go to
> the Device driver tab, select Update driver and select the right HAL
> (ACPI Multiprocessor). Windows should do the rest. Still, if I were
> you, I'd wait and see if you get an answer to your new post from
> someone who has actually done this - this is something you want to do
> right the first time, as you can probably totally screw up Windows
> with this if you get it wrong ;-(

Swapping the HAL within device manager, almost always results in
BlueScreenOfDeath when you next boot the PC - meaning you have to reinstall.

There is a way to do it though, Google for the instructions - I can't
remember from the top of my head.
 
Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Wim Zefat wrote:
> Op Sun, 26 Sep 2004 22:11:25 +0200 schreef Peter Wagner:
>

Wim

Thank you for your answer.

>
> OK, so your memory does work in dual channel mode.
> Mine says 'enabled' - so it is possible 🙂
>
> I can't find any information on what this is supposed to mean, but I
> suspect it shows whether hyperpath is enabled (also called Performance
> Acceleration Technology or PAT). This is a feature of the Intel 875
> chipset, which squeezes just a bit more performance out of the
> memory. The P4P800-E uses the slightly cheaper 865 chipset, which
> officially doesn't have this feature. Unofficially, it's still there
> though. Intel just disabled it - but Asus found a way to switch it
> back on. They're not allowed to call it Performance Acceleration
> Technology, so they call it Memory Acceleration Technology (or MAM)
> instead.
>
> MAM is disabled by default. Look for Memory Acceleration Technology
> or MAM under the advanced chipset-settings in the BIOS. This can be
> set to Auto (which means disabled!) or Enabled. Again, if you switch
> it on, I'd recommend running memtest86 for a while - you're squeezing
> more performance out of the memory and it might not like that.. It's
> on on my system though and I've never had a problem with it.

Thank you for this hint!
I've switched to 'Enabled' too.
I'll running memtest86 for a while.

[...]

>> Yes, I've tried this, but there's only a KB article for Win2000 and
>> not for WinXP.
>> One should copy DLLs for Multiprocessors, but not all mentioned DLLs
>> exists for WinXP?!
>> And I don't found a KB for an exchange of HAL for WinXP.
>
> I think you should be able to select ACPI Pc in Device Manager, go to
> the Device driver tab, select Update driver and select the right HAL
> (ACPI Multiprocessor). Windows should do the rest.

Unfortunately no. :-(
I've tried it a few days ago.
The only display option is 'Standard-PC'. :-(
Searching on the WinXP-Setup-CD doesn't helps. No drivers found.

> Still, if I were
> you, I'd wait and see if you get an answer to your new post from
> someone who has actually done this - this is something you want to do
> right the first time, as you can probably totally screw up Windows
> with this if you get it wrong ;-(

Yes, I think there's a way by coping the correct DLL(s) and renames it.
To screw up WinXP is possible.
But I've got a copy of Ghost. ;-)

>
> Good luck!
>
> Wim

p
 
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