AMD "Thuban" Core (Phenom II X6) XS Overclocking Charts

I can't see the 'filled with users with the same problem', however on this post there may be something useful :

"1055T works and OCs nicely on this board. I seem relatively solid at 3.7GHz right now undervolted.

The only thing to note is that you must underclock the ram to overclock the chip. I can't post above 800MHz DDR2 when the FSB is greater than 260MHz."

Have you thought that maybe the 1:2 Ram divider on this board is just crappy, or you just have to avoid the x7 and x8 NB multipliers as they are said in this thread to be crappy ?

Just try this:

OC your CPU by raising the CPU multi only and CPU-NB multi only....leave the HT at 200 range...

and reply here with the results of your testing

Multi has nothing to do w/ voltage,I can boot @ 300 ht on this board so the 260ht is wrong,his mem is just garbage.I believe it was 2.5ghz w/ a little over stock ht but I will try again for you.:up:

13x doesn't work with stock ht and core.

Who said that multi has anything to do with voltage? I say that the memory divider & CPU-NB multi combo may have a bug. To rule this out, i just proposed using only multipliers to see what the bug is.

I'm just curious as you to see what the problem is.

Can you post your complete bios settings to see everything (or maybe we should move this to a separate thread not to mess particle's thread with info like that) ? Or even a couple of screenshots ?

Who said that multi has anything to do with voltage? I say that the memory divider & CPU-NB multi combo may have a bug. To rule this out, i just proposed using only multipliers to see what the bug is.

I'm just curious as you to see what the problem is.

Can you post your complete bios settings to see everything (or maybe we should move this to a separate thread not to mess particle's thread with info like that) ? Or even a couple of screenshots ?

CPU Model: AMD Phenom II X6 1090T BE
CPU Stepping: -----------
CPU Frequency: 4018 MHz
CPU vCore: 1.36V
CPU Multiplier: 16.5x
CPU Turbo: Disabled
CPU NB Speed: 2922 MHz
HT Ref Speed: 243 MHz
RAM Speed: DDR3-1333
RAM Timings: 8-8-8-20-2T
RAM Configuration: 8 GB (2 x 4 GB)
RAM vDIMM: 1.63V
Motherboard: ASUS CHIV formula
Chipset/Socket: AM3, 890FX + SB850
Cooling: Thermaltake Frio
Temps: 24C Idle / 52C Load
Operating System: Windows 7
32/64-Bit: 64
Stable/Suicide/Untested: Untested

http://valid.canardpc.com/cache/banner/1854121.png

Going to do some tests now.

HT Ref Speed is 243~244 not 200, right ? (your log says 200)

Seems like a nice chip...if it proves to be stable at these settings

Ah yes I was in a hurry it was indeed 243. Memory is unstable at the moment i need to downclock it to make it run ( not suited for OC at all )

1333 8-8-8 should be stable on any ram at 1.63v. JEDEC spec is 1333 9-9-9 @ 1.5v, that means even the low end of low will be able to pull those speeds. If you are having "ram instability" at 1333 its not because of your overclock.

Yeap, Beep is right...focus on cpu and cpu-nb voltage and secondary your HT and NB voltages....ram is not an issue here obviously...


And if you re-mount , try to update the batch...:D

I'm trying different settings now I can run @4GHz with 1.356V not much less than before but it's 1 degree cooler!
http://valid.canardpc.com/cache/banner/1854221.png


Thanks Beep for the tip I'm focusing on the CPU right now. I'll try to get to the most stable OC first then I'll try some Extreme settings to see how far it will go. @ felix I'll be re-applying a new thermal paste soon since My Cooler is installed backwards ( always in a rush )

The Highest validated OC is

http://valid.canardpc.com/cache/banner/1854390.png

It crashed just trying the WEI.

the most stable i could get is @ 3.9GHz 1.356 it passed Prime95 1 hour Blend test.

CPU Model: AMD Phenom II X6 1090T BE
CPU Stepping: -----------
CPU Frequency: 3807 MHz
CPU vCore: 100% load 1.349V
CPU Multiplier: 16.5x
CPU Turbo: Disabled
CPU NB Speed: 2769 MHz
HT Ref Speed: 230.8 MHz
RAM Speed: DDR3-1333
RAM Timings: 8-8-8-22-2T
RAM Configuration: 8 GB (2 x 4 GB)
RAM vDIMM: 1.62V
Motherboard: ASUS CHIV formula
Chipset/Socket: AM3, 890FX + SB850
Cooling: Thermaltake Frio
Temps: 34C Idle / 47C Load
Operating System: Windows 7
32/64-Bit: 64
Stable/Suicide/Untested: Stable " Linx 8 hours "

http://img6.imageshack.us/img6/8611/unledjc.jpg

Quote:

---

Originally Posted by TheBreezyBB

CPU Model: AMD Phenom II X6 1090T BE
CPU Stepping: -----------
CPU Frequency: 3807 MHz
CPU vCore: 100% load 1.349V
CPU Multiplier: 16.5x
CPU Turbo: Disabled
CPU NB Speed: 2769 MHz
HT Ref Speed: 230.8 MHz
RAM Speed: DDR3-1333
RAM Timings: 8-8-8-22-2T
RAM Configuration: 8 GB (2 x 4 GB)
RAM vDIMM: 1.62V
Motherboard: ASUS CHIV formula
Chipset/Socket: AM3, 890FX + SB850
Cooling: Thermaltake Frio
Temps: 34C Idle / 47C Load
Operating System: Windows 7
32/64-Bit: 64
Stable/Suicide/Untested: Stable " Linx 8 hours "

http://img6.imageshack.us/img6/8611/unledjc.jpg

---

That's not stable... 772Mb of RAM tested? That's deffo not stable.

his ram timings seems very relaxed, i doubt that isnt stable

I'm pretty sure the RAM is very stable. It's underclocked, and i had no errors running Prime95 at these clocks.

Updated

I'm curious, why I'm not in the list?

http://www.xtremesystems.org/forums/...&postcount=796

Yours probably isn't the only entry I've missed. It's in there now.

772 MB is like runnning 32M...

I know thats 8 hours but IMC has a lot less stress than say 1500+

I'll do another stress test on 6144MB almost all available memory. I'll post when i'm done.

The best i could get so far http://valid.canardpc.com/cache/banner/1859915.png

I checked the CPU stepping today and here it is : CCBBE CB 1022BPMW

here's Prime 95 for over 9 hours

http://img856.imageshack.us/img856/1671/unled2ze.jpg

RAM and NB Clocks & Voltages for this ? 3.8G only 1.31V ...that's really good, i guess...

Here's a Screenshot

http://img571.imageshack.us/img571/8130/unled21e.jpg

Quote:

---

Originally Posted by BeepBeep2

1333 8-8-8 should be stable on any ram at 1.63v. JEDEC spec is 1333 9-9-9 @ 1.5v, that means even the low end of low will be able to pull those speeds. If you are having "ram instability" at 1333 its not because of your overclock.

---

My 2000Mhz DDR3 won't run anywere near 1333Mhz 8-8-8 no matter what Voltage or settings I use.

Most it will manage is 9-9-9 1600Mhz

My RAM is 2000Mhz 9-11-9-27-2T @ 1.65v

It wil not even post at 1200Mhz if I even attempt to try and drop the timings down to CL8