Asus M3A79-T Deluxe

[justapost]

Some more testing with my platform, 3.1GHz and 1.4Vcore yes, 1066MHz 5-5-5-15-2T unganged and NB2400MHz@1.1V, HT2000MHz @defaultV seems to be 24/7 stable for now. ACC at 2%, I dont even know does this ACC work? I get the same results without it .. :/

Still restarts when I try to clock more .. any ideas? 3dmark06cpu 4600 points and wprime 12.4sec, superpi 24.5s

Im probably buying a new PSU next week to see if it helps

NB 2.4GHz@1.1V Typo?
I'd try ACC 0+ and 2+ first see if you can go lower with the voltage. My chip does not work without ACC above ~3.15GHz. I need ~1.45V and ACC 0+ or 2+ for 3.2GHz. Above 3.2GHz 0+ is no longer stable here but 2+ is. But this can vary between chips. I tested low voltage with ACC at stock (2.6GHz). With ACC -2 I found 1.25V but with 0+ it was 1.1825V. So 0+ is best for me from ~2.6GHz-3.1GHz and 2+ for 3.2-3.4GHz, above I used 4+ but that is for benching only.
To find the best ACC value find the lowest stable voltage with ACC off and then test a few ACC values with a lower voltage. Use the one with the lowest requirement. I'd use a lower NB multi and a higher NB voltage to sort out instabilities from that side while you test ACC.

[faior]

NB 2.4GHz@1.1V Typo?
I'd try ACC 0+ and 2+ first see if you can go lower with the voltage. My chip does not work without ACC above ~3.15GHz. I need ~1.45V and ACC 0+ or 2+ for 3.2GHz. Above 3.2GHz 0+ is no longer stable here but 2+ is. But this can vary between chips. I tested low voltage with ACC at stock (2.6GHz). With ACC -2 I found 1.25V but with 0+ it was 1.1825V. So 0+ is best for me from ~2.6GHz-3.1GHz and 2+ for 3.2-3.4GHz, above I used 4+ but that is for benching only.
To find the best ACC value find the lowest stable voltage with ACC off and then test a few ACC values with a lower voltage. Use the one with the lowest requirement. I'd use a lower NB multi and a higher NB voltage to sort out instabilities from that side while you test ACC.

Thanks for advice! And yes it is running right now 2400MHz and 1.1V . default voltage it is? Stable at idle, stable at load, stable in 3D

I dont know what makes my comp to restart.. for example, I raise the HTT by 1 or 2MHz and I get about 3120MHz or so, I run torture test or 3D and BAM! It restarts.. it doesnt matter what vcore I use or what ACC setting is used.. And at 3.1GHz its 24/7 stable. Weirdo.. or its just the wall? And I think I get the same restart-effect if I OC the memory even a bit too. :/

And btw I flashed the older 0403 bios in windows .. but the board didnt even boot with these same settings as with the new bios.. black screen and had to reset the cmos by jumper.

[justapost]

Thanks for advice! And yes it is running right now 2400MHz and 1.1V . default voltage it is? Stable at idle, stable at load, stable in 3D

You are sure that is NB VID and not the external NB voltage part? I do not get 2.4GHz NB stable here prime95 always fails even with 1.55V but it might take hours. If your NB VID is your CPU VID 1.4V might be abit too low.
Have you posted your setup already here? Do you use 2x4pin 12V rails or one? If one can be you exceed you'r psu's limit.

@gotvoltage: He He it's a mess with 2GB. I tend to run 3DMark06 while running prime95 here every now and then with winxp 32bit 3dmark06 took round 10 minutes to finish. Under Vista 64Bit SP1 it took ~2hrs and the system did barely respond. Still takes longer with 4GB but at least responds while running prime95.

[faior]

You are sure that is NB VID and not the external NB voltage part? I do not get 2.4GHz NB stable here prime95 always fails even with 1.55V but it might take hours. If your NB VID is your CPU VID 1.4V might be abit too low.
Have you posted your setup already here? Do you use 2x4pin 12V rails or one? If one can be you exceed you'r psu's limit.

Hmm, now you say it, the NB vid is also default 1.3V, didnt know it was the real NB-voltage setting. "NB-voltage" is default too which is the 1.1V.

I am currently pretty sure too that my PSU is limiting, I have only 1x4pin attached, I did built the 8-pin my self, but havent tried it yet..The restart-effect clearly could be something to do with power. 12V line is 12.03V so no problem there thought.. :S

Setup is somewhere yes.. not far away.

[justapost]

Hmm, now you say it, the NB vid is also default 1.3V, didnt know it was the real NB-voltage setting. "NB-voltage" is default too which is the 1.1V.

I am currently pretty sure too that my PSU is limiting, I have only 1x4pin attached, I did built the 8-pin my self, but havent tried it yet..The restart-effect clearly could be something to do with power. 12V line is 12.03V so no problem there thought.. :S

Setup is somewhere yes.. not far away.

Saw it's only 16A on that rail with an 18A single rail max voltage I could apply was round 1.475V(~3.25GHz).
Chip worked stable here up to 85°C max, above the system froze and I could fix that with better cooling.
With 1.3V my NB runs 2.2GHz stable (12hrs prime95 tested).
During my testings I also found that increasing the ref HT sometimes results in up to +0.1V higher voltage requirements for the cpu.

[gOtVoltage]

Hmm, now you say it, the NB vid is also default 1.3V, didnt know it was the real NB-voltage setting. "NB-voltage" is default too which is the 1.1V.

I am currently pretty sure too that my PSU is limiting, I have only 1x4pin attached, I did built the 8-pin my self, but havent tried it yet..The restart-effect clearly could be something to do with power. 12V line is 12.03V so no problem there thought.. :S

Setup is somewhere yes.. not far away.

You need to set NB on CPU to 1.3volts or Higher for proper function of CPU. @ 1.15v even @ stock speed will eventualy cause any Phenom to crash regardless of CPUclocks.

1.3v for NB is how your ram is kept stable too..the NB is your IMC. So if you have lower than stock volts you can cause your ram to Reboot your Pc over time. even if you are using 1.8v Jdec seting for basic 800mhz ram.

[faior]

You need to set NB on CPU to 1.3volts or Higher for proper function of CPU. @ 1.15v even @ stock speed will eventualy cause any Phenom to crash regardless of CPUclocks.

1.3v for NB is how your ram is kept stable too..the NB is your IMC. So if you have lower than stock volts you can cause your ram to Reboot your Pc over time. even if you are using 1.8v Jdec seting for basic 800mhz ram.

Thanks for this, I think I am getting somewhere now

3.1GHz 1.4Vcore, NB 2350@1.4V vid, nb voltage 1.26V, HT1930@1.26V, mem 1140MHz 5-5-5-15-2T@2.2V unganged, 6 hours nearly done for stability test.. I didnt believe it would survive though.

[gOtVoltage]

Thanks for this, I think I am getting somewhere now

3.1GHz 1.4Vcore, NB 2350@1.4V vid, nb voltage 1.26V, HT1930@1.26V, mem 1140MHz 5-5-5-15-2T@2.2V unganged, 6 hours nearly done for stability test.. I didnt believe it would survive though.

Anytime


Update ASUS 79-T using ACC+4 and lowest volts i can use in Bios..

Hope This is Good for Vista32bit @3.52ghz