I have built a new system and can't seem to get a stable OC . It's effecting both my part time business on the side and my schooling. Already spent countless hours researching and trying, but still can't get it stable. Have run many Prime95 tests, but they ALL end up on a BSOD (several posted bellow). Doesn't seem to be an issue with temps reaching too high. I hope the following will provide you enough information for some insight on what steps may be taken to solve this problem.
WOULD APPRECIATE ANY HELP, AND AGAIN THANK YOU SO MUCH IN ADVANCE! I am desperate ....
CPU: AMD PHENOM II X6 BLACK EDITION 1100T Thuban
MOBO: GIGABYTE 880GA-UD3H
RAM: Kingston HyperX 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model KHX1600C9D3K4/16GX
GPU: Sapphire Radeon HD 6950 Dirt 3 Edition (have dual BIOS switch. One that's unlocked to 6970 shaders, and one at stock shaders. Currently have an OC using Sapphire Trixxx to match the 6970 memory/ gpu clocks *see pic below*)
SSD: OCZ Vertex Plus SATA II 120 GB HD (Holding OS + Games + Drivers ONLY)
1x Raptor 7200 RPM HDD 500GB (Holding every other app minus games/ OS)
1x WD 2 TB Green HDD (used for backup/ video/ photoshop work)
OS: Windows 7 64-bit Ultimate
GPU OC *Notice the voltage is pretty high for a low OC, but wanted to make sure it's stable. I have tried all range of voltages to make sure*:
***ON TOP OF THE BSOD IMAGES I HAVE BELOW, I HAVE ALSO GOTTEN THE FOLLOWING ERRORS:******
Going run another Memtest86 again to be safe... but I am pretty sure my RAM isn't the issue *at least physically, pretty sure the timings, clocks, and voltages are as should be for my RAM (at least according to Kingston's page)*
Yeah your CPU just may not be able to clock that high regardless of voltage increase. Increasing voltage has diminishing returns and at a point you will basically hit a wall when trying to clock higher.
I just got a 1090T myself and I needed the voltage as high as 1.432 - 1.472 to get stable at 4.00GHz. (it varies while being stress tested) I could not get stable at 4.05 even going above 1.5V. However, clocking down to 3.86GHz I only needed between 1.38 and 1.43V
4.2 is more of an achievement for 24/7 usage, not a regular clock for most chips. Get 3.8 stable then move upward until you have issues.
You may want to play with your NB and HT to get it stable as phenom ii gets it's best clocks when you find out where it wants these at. http://www.overclockers.com/forums/showthread.php?t=596...
This is a very helpful guide on how to OC phenom II and explains what I said about NB and HT affecting your max clocks.
This post may help me I am having the same problem as you but cant get past 3.6 Ghz to boot with my 1100t but my asus Mobo seems to have radically different settings options to most others I see including your my 'CPU Overvoltage' just confuses the hell out of me co's the values are very odd indeed and don't represent 1.325 volts which is stock just goes from auto to 1.02750 or something like that and don't know what it means but any adjustments to this and it just wont boot but 3.6 Ghz boots with overvoltage set to auto but 3.7 or 3.8 won't & my temps seem allright also I havent taken mine anywhere near 1.5 volts but the only way I can monitor my Cpu voltage is when I clock with amd overdrive co's in bios it won't boot if I adjust CPU overvoltage so am never able to see what effect the changes have had.
I hope you fix your problem and am hoping somone can help me with mine in my post I just entered.
You sound like you are more experienced than me I am a beginner
Good luck mate
Ps your 1100t CPUz screenshot looks Badass with 4.2 Ghz I hope you get it stable & I can only dream of getting that