GA-EP43-DS3L OC problem

[Psycho101]

It may also be that because your board has limited adjustments, that you need more Vcore to compensate.

It's perfectly reasonable to set a BIOS voltage that gives around 1.3625V in windows at idle, rather than limiting yourself to 1.3625 in the BIOS.

Give these settings a go, and see how you get on. I've written at the side the values you will need to do your own tests on adjusting:

MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Auto
CPU Clock Ratio ..........................: 9x
Fine CPU Clock Ratio.....................:0.0
CPU Frequency ...........................: 3.60Ghz

Clock Chip Control
Standard Clock Control
CPU Host Clock Control..................: [Enabled]
CPU Host Frequency (Mhz) ............: 400Mhz
PCI Express Frequency (Mhz) .........:100

Advanced Clock Control [Press Enter]
CPU Clock Drive...........................: 800
PCI Express Clock Drive.................: 900
CPU Clock Skew (ps)....................: <<< Leave
MCH Clock Skew (ps)...................: <<< Leave


DRAM Performance Control
Performance Enhance...................: [STANDARD]
Extreme Memory Profile (X.M.P.).....: Disabled
(G)MCH Frequency Latch...............: 400
System Memory Multiplier ..............: 2.00
Memory Frequency (Mhz) ..............: 800
DRAM Timing Selectable ................: [Manual]

Standard Timing Control
CAS Latency Time........................:4
tRCD .........................................: 4
tRP'............................................: 4
tRAS..........................................: 12



Advanced Timing Control [Press Enter]
tRRD...........................................: 4
tWTR..........................................: 8
tWR............................................: 5
tRFC...........................................: 62
tRTP...........................................: 5
Command Rate (CMD) ....................:2 

Channel A
Static tRead Value.........................:8

Channel B
Static tRead Value.........................:8

Motherboard Voltage Control
Voltage Type.………... Manual
CPU
CPU Vcore….……….........................: 1.39 <-- With temps so cool, try upping. No more than 1.45V in Windows is prudent. OFC do so at your own risk.
CPU Termination…..... 1.200V*.......: 1.3 <--1.2V - 1.4V, more or less. 1.4V is fine if that's what's stable.
CPU PLL…………………....1.500V*.......: 1.65[ tried 1.55 as well but it failed] <--Keep this to 1.65V max
CPU Reference………,,0.800V*.......:<<< 0.805v <-- Try playing around with this. While giving more Vcore, set CPU term to 1.2, then try values +&- 3 steps. At each step, you may want to try all ranges of CPU termination from 1.2 to 1.4, if all still fail, choose the one that took the longest to fail.

MCH/ICH
MCH Core…………….....1.100V...........: << Try from 1.100V to 1.3800V, maybe change this after finding the best CPU term and CPU ref values
ICH I/O……………….....1.550V............: <<< 1.55

DRAM
DRAM Voltage ……....1.800V............: 2.0

Advanced Settings
Limit CPUID Max. to 3.....................: [Disabled]
No-Execute Memory Protect............: [Enabled] <--This can safely be enabled. It gives hardware acceleration to a Windows security feature.
CPU Enhanced Halt (C1E)................: [Disabled]
C2/C2E State Support....................: [Disabled]
x C4/C4E State Support..................: [Disabled]
CPU Thermal Monitor 2(TM2) ...........: [Enabled]
CPU EIST Function.........................: [Disabled]
Virtualization Technology................: [Disabled] <--Enable if you use VM's, otherwise leave disabled

Also worth seeing if [Ctrl] + [F1] lets you access Driving Strength in Advanced Timing Control section.

And they arrived back from Mothercare just in time, so no alien poo

[girish78]

Thanks Buddie. I do have driving strength option and I have set that to 800 at the moment. I will give a go with the settings you have mentioned and will reply back. Thanks once again. :)

[Psycho101]

To clarify CPU ref tuning, to try all possible values between 1.2 and 1.4 CPU term:

Set 1.2V CPU term
Set one tick lower CPU ref
Try 1.2, 1.22, 1.24, 1.26, 1.28, 1.3, 1.32, 1.34, 1.36, 1.38, 1.4 CPU Term
If no good, set 1.2 and lower another tick of CPU ref
Repeat 3
Set another tick down, then up to 3 ticks up, at each change, do step 3.

This can take a while as it's 66 things to re-boot for all together.

[Chike]

Originally Posted by Psycho101

To clarify CPU ref tuning, to try all possible values between 1.2 and 1.4 CPU term:

Set 1.2V CPU term
Set one tick lower CPU ref
Try 1.2, 1.22, 1.24, 1.26, 1.28, 1.3, 1.32, 1.34, 1.36, 1.38, 1.4 CPU Term
If no good, set 1.2 and lower another tick of CPU ref
Repeat 3
Set another tick down, then up to 3 ticks up, at each change, do step 3.

This can take a while as it's 66 things to re-boot for all together.

Does this help reducing VCore? If it does can the CPU Reference be changed with EasyTune to save some reboots?

I thught starting from stable, and try decreasing VCore untill Prime95 fail, change CPU Reference with EasyTune and start over, then reboot for another CPU Termination, and use the best of them all.
IMy motherboard hs only 0.1v steps for CPU Termination and 4 options of CPU Reference (default is the highest.)

[Psycho101]

I would use the BIOS, not easytune personally. I wouldn't trust easytune as far as I could throw it.

[Chike]

Originally Posted by Psycho101

I would use the BIOS, not easytune personally. I wouldn't trust easytune as far as I could throw it.

LOL, and then, can I use it for the vcore? Can't boot for every notch.

[Psycho101]

You can, and IMO you should. If you're running a stress test after, the P|C's out of action, so why not re-boot? It only take 40 seconds to boot Windows (for me).

[Chike]

Originally Posted by Psycho101

You can, and IMO you should. If you're running a stress test after, the P|C's out of action, so why not re-boot? It only take 40 seconds to boot Windows (for me).

I finaly have thanks, it seems 1.2/805(default) and 1.3/807ref are the best, well they work ok where other don't. CPU is doing good 3.9GHz@1.280v, can't stress it thogh till the weather cool down.
EasyTune does act weird. It shows the right CPU Term but the refs are same for all of them, could be just a visual bug.