EP43-UD3L memory issue!

[Leonhard]

1st of all since this is my 1st post i would like to say hi to everyone and God save Japan!


I just added 6 GB DDR2 800 MHz to my pc but the problem is that my bios shows the memory frequency at 667 MHz.

System info: MB: EP43-UD3L rev 1.1, BIOS: F8, CPU: Intel Core 2 E4700 2,6 GHz (Rated FSB 800 MHz - info provided by CPU-Z), Video: Gigabyte GForce 7600 GS, PSU 500W

M.I.T. Bios settings

CPU Clock Ratio - 13x
CPU Host Clock Control - Disabled
xCPU Host Frequency (Mhz) - 200 (Shown inactive)
C.I.A 2 - Disabled

Advanced Clock Control

CPU Clock Drive - 800mV
PCI Express Clock Drive - 800mV
CPU Clock Skew - 0ps
MCH Clock Skew - 0ps

Performance Enhance - Turbo
(G) MCH Frequency Latch - Auto
System Memory Multiplier (SPD) - Auto
Memory Frequency - 667 (Shown inactive)
DRAM Timing Selectable (SPD) - Auto
Timings 5.5.5.15,

Advanced Timing Control

tRRD - 3
tWTR - 3
tWR - 5
tRFC - 44
tRTP - 3
Command Rate - 0

All on auto and shown inactinve

DRAM voltage 1.8v (Auto)

Advanced Bios Settings

CPU Multi-Threading - Enabled
CPU Enhanced Halt (C1E) - Enabled
CPU EIST Function - Enabled

My old memory module is the same brand same frequency (KVR800D2N5/2G that whats the label shows). Only the timings are different:

DIMM 1,2,4

Module Name Kingston 2G-UDIMM
Serial Number 753AC6F8h (4173740661)
Manufacture Date Week 4 / 2011
Module Size 2 GB (2 ranks, 8 banks)
Module Type Unbuffered DIMM
Memory Type DDR2 SDRAM
Memory Speed DDR2-800 (400 MHz)

Memory Timings:
@ 400 MHz 5-5-5-18 (CL-RCD-RP-RAS) / 23-51-3-6-3-3 (RC-RFC-RRD-WR-WTR-RTP)
@ 266 MHz 4-4-4-12 (CL-RCD-RP-RAS) / 16-34-2-4-2-2 (RC-RFC-RRD-WR-WTR-RTP)
@ 200 MHz 3-3-3-9 (CL-RCD-RP-RAS) / 12-26-2-3-2-2 (RC-RFC-RRD-WR-WTR-RTP)

[ DIMM3: Kingston (2 GB DDR2-800 DDR2 SDRAM) ]

Memory Module Properties:
Module Name Kingston
Serial Number BDCC2B92h (2452343997)
Manufacture Date Week 6 / 2009
Module Size 2 GB (2 ranks, 8 banks)
Module Type Unbuffered DIMM
Memory Type DDR2 SDRAM
Memory Speed DDR2-800 (400 MHz)

Memory Timings:
@ 400 MHz 6-6-6-18 (CL-RCD-RP-RAS) / 24-51-3-6-3-3 (RC-RFC-RRD-WR-WTR-RTP)
@ 333 MHz 5-5-5-15 (CL-RCD-RP-RAS) / 20-43-3-5-3-3 (RC-RFC-RRD-WR-WTR-RTP)
@ 266 MHz 4-4-4-12 (CL-RCD-RP-RAS) / 16-34-2-4-2-2 (RC-RFC-RRD-WR-WTR-RTP)

Above infos provided by Everest

I`v tried to remove the old module and start only with the new modules but the same problem.

And also i would like to know if there`s any other changes i can make in my bios to improve system performance

I will provide additional infos if needed.

Thanks

 

[bilbat]

Put just the old module in (as it's slower - to accomodate it, you will need to slow down the new stuff); enter the BIOS, do a "Load Optimized Defaults", save & reboot...

Enter the BIOS again;

on the "MB Intelligent Tweaker(M.I.T.)" page, start by setting "PCI Express Frequency" to "100", not "Auto";
set "Performance Enhance" to "Standard";
set "DRAM Timing Selectable" to "Manual"
select the "Advanced Timing Control" sub-page;
see what "tRFC" is set to; mutiply by 1.15, and round up to the nearest integer - set "tRFC" to that value;
(for the example value in the manual on page 41, 1.15 X the 44 value shown would be 50.6 - thus the setting would need to be 51...)
set "Command Rate(CMD)" to "2" or "2T", however your BIOS shows it;
exit back to main "MB Intelligent Tweaker(M.I.T.)" page;
under "Mother Board Voltage Control",
set "MCH Core" to 1.200V";
set "DRAM Voltage" to "1.850", or "1.860V" - whichever your BIOS will allow (some adjust by two hundredths increments...)
<F10> to save & exit...

Power down, add the other three sticks - should be good to go...

If you want to check other parameters for your board, you can take a peek

here

or

here...

 

[Leonhard]

I`v done all of that but no changes still 667

1st when i started only with the old module the frequency reported was 800 and the tRFC value 51 ... x 1.15 the new value 58.65 (60) and i set the DRAM Voltage to 1.900 (1850/60 is not available) also tried 2.000

Any ideas?

 

[bilbat]

We'll have to set the memory multiplier manually - I will take one of the two setups I pointed you at and edit it to work from scratch - will take a couple hours, as I'm in the middle of etching a PC board. Most of my setups contain an option for gentle, low-voltage overclocking - do you have something other than the stock Intel cooler?

 

[Leonhard]

Yes Gigabyte Rocket 3D II @1513 RMP but if needed it can be incrased to 3000 RPM

Current CPU Temp 21ºC(70ºF); MB Temp 35ºC(98ºF) (readings by everest)

Sry the original tRFC value was 52 not 51 so i set it to 60 but still no change ... also i started with only the new modules and with optimized defaults still 667, 800 only with the old one

I also mailed to Gigabyte support. As soon i have an answer i`ll post it

Thanks for your time

LE: I think i got it i just changed the tRAS to 18 (original value 15) and the System Memory Multiplier from to 4.00C and now the 1st value of frequency is 667 and the 2nd 800 but idk why the 1st value is 667

 

[bilbat]

Do I get this right - with the new DIMMs, she sets herself to 667, with just the old stick, to 800? If so, that's exactly what we want - we want 800 at the old stick's timings. With your FSB at the default 800 (200 Bclk), you do, indeed, want the 4.0C multiplier - the 'C' indicates it's the one on the 200/800 'strap'.

Minus the complications from the differing DIMMs/SPDs, the deal is that the SPD values are setup for a single DIMM per channel. To get two DIMMs per channel to work, the normal practice is to add 15% to tRFC, set the command rate to 2, bump the RAM voltage a tad, and the MCH (memory controller) a tenth volt...

Where are you? I'm in the midwestern US, where it's a bit after 10PM (which is actually 11, as tonight is daylight savings time adjustment night) - got my board etched & plated, tanks rinsed, & it's about time for my nightly knockout drops - am crazy (manic depressive) & must sleep regular hours or I'll be dashing about on the ceiling with my tinfoil hat on to prevent the CIA brain-wave machines! [:bilbat:2] Glad to help, and will be available again circa eight AM Greenwich-6

 

[Leonhard]

yes when i put just the old stick its 800 with only new ones 667 when all auto ...

tRFC is at 60 now command rate at 2 i`v increased the ram voltage to 2.0v and the MCH to 1,3v its ok this settings?

timings are now 5-5-5-18 and i see that my pc can handle this config.

When you have some time i would like to OC the CPU ... maybe i can rise it @ 3.0 GHz (now is at 2,6GHZ)

I`m in Spain GMT +1 its 5.45 AM i also need to sleep regular hours but i can`t )

Thanks for your help

Forget the brain-wave machine thei r busy now playing with HAARP in Japan

 

[bilbat]

You are OK there - the listed maximum for the 82P43 (the MCH) is 1.21V, so you're only nine hundredths high - and northbridges are rated for lots of heat, the maximum for that particluar one is 103°C. The memory is OK as well, 1066 DDR2 is all specified at 2.1V using the same chips.

Safe, mild overclocking is pretty simple for 775 processors. What I've alway done is simply take them up one 'step' in FSB. Intel lists four FSBs for the 775 chips - 800, 1066, 1333, and, I think, one or two processors at 1600. I've never found one yet that would not take a full step with not a lot of overvolting; that is, for your chip, to simply go from 800 to to 1066, at the same x13 multiplier, which should give you 3.47GHz. The FSB is derived from the "CPU Host Frequency" setting on the "MB Intelligent Tweaker(M.I.T.)" BIOS page: four times the host frequency gives you the FSB. As you raise the host frequency, you lower the memory multiplier to keep the memory frequency the same. I'll have a full set of parameters for you in an hour or so...

 

[bilbat]

A lot of this is 'canned' - so if you've seen parts of it before, skip ahead!

GA-EP43-UD3L E4700 to 2.6/3.47 GHz
Intel E4700 800FSB x 13.0mult 2.6GHz .85-1.5V Core G0 sSpec SLALT
Kingston 8GB (4 x 2GB) 240-Pin SDRAM DDR2 800 memory: 'various' timings nominal 1.8v

Gentle (but noticeable), no-risk, low-voltage Overclocking parameters (assuming anything but stock HSF...) are in italics...

If you haven't yet done it, pull out all but one stick, start with a BIOS' "Load Optimized Defaults"

Before we start ramping things up, I want to teach you a new skill involving the BIOS: Do the <DEL> at the boot to enter the BIOS;
notice, at the bottom, the <F11> "Save CMOS to BIOS" - hit this, and you should get a menu that will show a number (the count varies by BIOS) of empty 'slots', each of which will store an entire set of BIOS parameters, to be re-loaded from the corresponding <F12> "Load CMOS from BIOS"; this is a wonderful overclocker's feature. What I do with it, is to save my 'baseline' working parameters, so if I change something that 'irritates' the board, and forces a reset of all the parameters to defaults, or, even worse, get so screwed up I need to do a 'clear CMOS', I can get back to my starting point with no effort, and without having to remember 85 separate settings! Another thing it prevents is two hours' troubleshooting, having forgotten a change to a crucial parameter - like, "wait a minute - didn't I have the Trd at seven?!" It's pretty self-explanatory, and I alway urge people to start right away by taking the time to give the 'slots' names that mean something: in two hours, "Try2" and "Try3" will not be very helpful, but "450@+10MCH" and "450@+15MCH" will! Another use is for 'green' settings; overclocks, as a rule, do not 'play well' with green features, such as 'down-clocking' and 'down-volting'; with the storage slots, you can set up one profile, say "Green", with all the settings at 'stock' values, and all the 'green' features enabled; another, say "Balls2Wall" with a full overclock, and all the 'green' stuff turned off... Another neat feature of this 'slot' system is, for most BIOS, the mechanism itself will keep track of which ones have booted successfully, and how many times (up to, I believe, a max of five)!


On the "Advanced BIOS Features" page:

"CPU Enhanced Halt (C1E)" to "Disabled"
"C2/C2E State Support" to "Disabled"
"CPU Thermal Monitor 2 (TM2)" to "Enabled"
"CPU EIST Function" to "Disabled"
"Full Screen LOGO Show" to "Disabled"

On the "Integrated Peripherals" page:

Your manual shows "Legacy USB storage detect", but later BIOS say "USB Storage Function" - either way, set to "Disabled"

On the "Power Management Setup" page:

"ACPI Suspend Type" to "S1(POS)" (for now...)
"HPET Support" to "Enabled"
"HPET Mode" to whichever OS type you're running - "32-bit" if an x86 version, "64-bit" if an x64 version...

On the "MB Intelligent Tweaker(M.I.T.)" page:

"Robust Graphics Booster" to "Auto"
"CPU Clock Ratio" to "13"
"Fine CPU Clock Ratio" to ".0"
"CPU Frequency" - this one can't be set, it's calculated, and will change when we set the next few items...

******** Clock Chip Control ********
>>>>> Standard Clock Control

"CPU Host Clock Control" to "Enabled"
"CPU Host Frequency (Mhz)" to "200"
"CPU Host Frequency (Mhz)" to "267"
"PCI Express Frequency (Mhz)" to "100" (not auto...)
"C.I.A.2" to "Disabled"

******** DRAM Performance Control ********
"Performance Enhance" to "Standard"
"(G)MCH Frequency Latch" to "200MHz"
"(G)MCH Frequency Latch" to "266MHz"
"System Memory Multiplier (SPD)" to "4.0 C"
"System Memory Multiplier (SPD)" to "3.0 A"
"Memory Frequency (Mhz)" - again, can't be set, it's calculated...
"DRAM Timing Selectable (SPD)" to "Manual"
You should be able to leave the rest of the memory settings alone; we haven't changed its actual speed, so the working settings should keep working...

"Load-Line Calibration" to "Disabled" (this works differently on different boards - on mine, it's worse "enabled" than "disabled" - the function is supposed to cure a phenomenon called Vdroop - the CPU voltage regulation circuit causes the CPU core voltage to sag, or 'droop' under high loadings; hopefully, we're going to be at a low enough voltage to just ignore this...)
"CPU Vcore" to "1.4500V"

And that should do it!

I should point out that getting two reboots in a row here is perfectly normal behavior; it seems that, when you change certain settings (and we don't exactly know which ones - the only sure one I know is Trd - if you change it, I think you get the 'twin' reboot) it boots once to 'see where it's at', recalculates its remaining 'auto' settings, saves them, and then boots again. Three reboots in a row, however, usually indicates that the board was 'given indigestion' by your settings, and is going back to defaults. This sometimes goes astray, and it doesn't get back into proper operation - for example, at this point, mine will sometimes 'lock' itself into 111MHz x a six multiplier - and take a week to do a whole boot - that's time to do a CMOS reset, and use your 'stored' <F12> profile to get back to where you were...

Good luck!

Bill

 

[Leonhard]

I just put this new values and it works very nice
Thanks very much

 

[bilbat]

You're very welcome - happy computing!

Bill

 

[Leonhard]

Hello agian

I`v tried the new configuration for some days but it seems that my system becomes unstable sometimes and i get the shiny blue screen so i`v decided to remove the old module.

Now the new modules are displayed as working at 800 MHz.

So now i have 3 x 2GB N5 modules same bios config ... cpu 13x267 MHz, DDR 266/3A CPU voltage 1.45, DDR voltage 1.9, MCH to 1.2 but my timings are in auto

Memory timings reported by everest

Memory Timings 5-6-6-19 (CL-RCD-RP-RAS)
Command Rate (CR) 2T

All modules:
@ 400 MHz 5-5-5-18 (CL-RCD-RP-RAS) / 23-51-3-6-3-3 (RC-RFC-RRD-WR-WTR-RTP)
@ 266 MHz 4-4-4-12 (CL-RCD-RP-RAS) / 16-34-2-4-2-2 (RC-RFC-RRD-WR-WTR-RTP)
@ 200 MHz 3-3-3-9 (CL-RCD-RP-RAS) / 12-26-2-3-2-2 (RC-RFC-RRD-WR-WTR-RTP)


Any advice on timings config?