Athlon 2400 on an ASUS A7A266 - won't run above 2000MHz?

[Guest]

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

Hi all,

Until this morning, I had an Athlon 1400MHz CPU in my ASUS A7A266
motherboard, running at FSB 133 with a 10.5x multiplier.

The motherboard is PCB version 1.10, and I recently upgraded the BIOS to
version 1012 - so according to the ASUS website the motherboard should now
be able to support an Athlon XP 2400+.

I'm running in Jumper Free mode, and when I fitted the new chip today the
BIOS detected it correctly and then allowed processor speeds of 1500MHz,
2000MHz or 'manual' to be selected. So I selected Manual, left the FSB at
133 and selected the multipler 18.0x from the list; but woe, the PC won't
boot up like that.

If I just select 2000MHz in the BIOS, it automatically goes for 133FSB and
15.0x and it all works fine - has anyone any idea what I need to do to get
from 2000MHz up to 2400MHz?

Thanks & regards

Stuart

 

[Guest]

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

"Stuart Pearce" <stuart.pearce@virgin.net> wrote in message
news:EI0Ud.1081$4R6.1026@newsfe5-gui.ntli.net...
> Hi all,
>
> Until this morning, I had an Athlon 1400MHz CPU in my ASUS A7A266
> motherboard, running at FSB 133 with a 10.5x multiplier.
>
> The motherboard is PCB version 1.10, and I recently upgraded the BIOS to
> version 1012 - so according to the ASUS website the motherboard should now
> be able to support an Athlon XP 2400+.
>
> I'm running in Jumper Free mode, and when I fitted the new chip today the
> BIOS detected it correctly and then allowed processor speeds of 1500MHz,
> 2000MHz or 'manual' to be selected. So I selected Manual, left the FSB at
> 133 and selected the multipler 18.0x from the list; but woe, the PC won't
> boot up like that.
>
> If I just select 2000MHz in the BIOS, it automatically goes for 133FSB and
> 15.0x and it all works fine - has anyone any idea what I need to do to get
> from 2000MHz up to 2400MHz?
>
>

an athlon 2400+ is 2000mhz

see here and look down to model numbers -

http://www.amdboard.com/amdid.html

 

[Guest]

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

>>
>
> an athlon 2400+ is 2000mhz
>
> see here and look down to model numbers -
>
> http://www.amdboard.com/amdid.html
>
>
>

Oh - that's right, they had that change in naming convention a while back,
didn't they.

That issue had actually crossed my mind, but I was misled by the 1400-named
chip actually running at 1400 whereas the 2400-named chip would only run at
2000.

Problem solved then - thanks Chris

Stuart

 

[Guest]

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

On Sat, 26 Feb 2005 15:37:08 +0000, Stuart Pearce wrote:

> I'm running in Jumper Free mode, and when I fitted the new chip today the
> BIOS detected it correctly and then allowed processor speeds of 1500MHz,
> 2000MHz or 'manual' to be selected. So I selected Manual, left the FSB at
> 133 and selected the multipler 18.0x from the list; but woe, the PC won't
> boot up like that.
>
> If I just select 2000MHz in the BIOS, it automatically goes for 133FSB and
> 15.0x and it all works fine - has anyone any idea what I need to do to get
> from 2000MHz up to 2400MHz?
>
15x133 (2000MHz) is the default speed for the 2400+, so it's running
correctly.. I'm not at all familiar with the Ali chipset, but I would be
shocked if the MB handled all 5 bits of the multiplier correctly in manual
mode. But, if it does, then setting it to 18 would be trying to run the
CPU at 2400MHz. That would require a vcore higher than the default in most
cases. Just to see if the multiplier actually works, try setting it to 16
and raise vcore to 1.75v and see if it boots at 2133MHz. If not, then try
setting it to 7 and see what speed it boots. If it boots with a multiplier
of 15 either x100 or x133, then you know it doesn't handle the multipliers
correctly as it was with all other boards of this era. That being the
case, you can use the Multiplier Cross Ref in one of the links below to
determine the true multipler setting compared to the bios setting.

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
My server http://wesnewell.no-ip.com/cpu.php
Verizon server http://mysite.verizon.net/res0exft/cpu.htm

 

[Chuck]

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

"Wes Newell" <w.newell@TAKEOUTverizon.net> wrote in message
news😛an.2005.02.26.20.02.20.696394@TAKEOUTverizon.net...
> On Sat, 26 Feb 2005 15:37:08 +0000, Stuart Pearce wrote:
>
>> I'm running in Jumper Free mode, and when I fitted the new chip today the
>> BIOS detected it correctly and then allowed processor speeds of 1500MHz,
>> 2000MHz or 'manual' to be selected. So I selected Manual, left the FSB
>> at
>> 133 and selected the multipler 18.0x from the list; but woe, the PC won't
>> boot up like that.
>>
>> If I just select 2000MHz in the BIOS, it automatically goes for 133FSB
>> and
>> 15.0x and it all works fine - has anyone any idea what I need to do to
>> get
>> from 2000MHz up to 2400MHz?
>>
> 15x133 (2000MHz) is the default speed for the 2400+, so it's running
> correctly.. I'm not at all familiar with the Ali chipset, but I would be
> shocked if the MB handled all 5 bits of the multiplier correctly in manual
> mode. But, if it does, then setting it to 18 would be trying to run the
> CPU at 2400MHz. That would require a vcore higher than the default in most
> cases. Just to see if the multiplier actually works, try setting it to 16
> and raise vcore to 1.75v and see if it boots at 2133MHz. If not, then try
> setting it to 7 and see what speed it boots. If it boots with a multiplier
> of 15 either x100 or x133, then you know it doesn't handle the multipliers
> correctly as it was with all other boards of this era. That being the
> case, you can use the Multiplier Cross Ref in one of the links below to
> determine the true multipler setting compared to the bios setting.
>
> --
> Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
> My server http://wesnewell.no-ip.com/cpu.php
> Verizon server http://mysite.verizon.net/res0exft/cpu.htm
>

True enough, I can't even get my 3200+ Barton to run 2400 Mhz. by upping the
multiplier to 12. runs fine at 11.5 *206 (2369 mhz) or even 11*215 (2365
mhz). so trying to get a 2400+ to run at 2400 mhz would be a real feat
without serious cooling.