[Solved] Prime 95

I've been overclocking and stabilizing all weekend. I have a 1090T and every time I run AMD Overdrive's stability test for an hour it finds no problems.

I can run Prime 95 blend & large fft's tests for a few minutes until worker #5 stops working due to: FATAL ERROR: Rounding was 0.5 expected 0.4 or less.

I've read people posting similar issues a while back on here but none of them had huge success fixing it.

What I am wondering is if I can continue running the torture test with that one worker down or should I stop and fix it first? I upped my RAM voltage from MFG Suggested voltage of 1.5 to 1.6.

I am over clocked from 3.2 to 3.8 can upload screenshots from Overdrive in a little bit.

Just ran blend test for about 2 hours now and it crashed my computer. Will report back with actual BSOD error next time it happens.

Biostar A880G+
Phenom II X6 1090T
2x4gb g.Skill RAM 9-9-9-24 @ 1333
650w Coolermaster PSU
Radeon HD 6850

You need to fix the issue or you're just wasting your time. The link below may help you find the right BIOS settings for your OC?

http://www.overclockers.com/forums [...] p?t=596023

Sorry I meant to add that tidbit. I am OC'ing in BIOS 100%. Just using Overdrive to view actual performance. Also using CPU-Z along with other applications.

@beenthere i read that whole post. actually whole thread. thank you, the information was outstanding and has really helped me understand a lot more. I have pretty much everything he suggests for the 1090T and still i have rounding errors in P95. I have 1.39 core voltage with 210MHz for bus speed. My multiplier is set at 18 getting a cpu speed of 3.78

My HT link speed is at 2100MHz and my ram timings are at 9-9-9-24 @1.5 volts (default RAM settings)

@henydiah thats my problem. I test in 95 and it doesnt last 10 minutes before a worker fails

Your not reading my posts correctly. I said I am overclocking in the bios. I am just using AOD to monitor performance...

I also previously stated that I have a Biostar A880G+ with AMI bios v.080016 (thats the version reported by cpu-z) It is the second newest BIOS for this board and I rolled back because of problems with the newer version.

I have the stock heatsink on the 1090T because I haven't seen numbers rise over 53 degrees.

My power supply is a 650w cooler master.

Now I am getting hyper transfer sync flood errors (was getting these earlier) if I play a graphic intensive game for too long. I tried setting my FSB back to 200 and lowering the multiplier to 17.

Will check to see if this helps anything out... would like some more advice/suggestions if anyones got any.

Cooling is not my problem.... I've ran at 3.8 ghz for full load for a few hours straight at 50 degrees.

Can anyone else help me out with what I need. I went all the way back to Optimal defaults to start over and after few hours of gameplay I still get hyper transfer error

I've tried clearing CMOS... I've tried loading optimal defaults. The problem is greater than that. I'm starting to think its a PSU issue.

My 12v = 11.9

+5v= 4.857

Alright. I think I'm going to try and boost the cpu voltage up to 1.5. Still getting freezes to black screens while playing bad company 2 over a half hour.

Bring you ht speed up to as close to the nb speed as it will let you without exceeding it
If that’s not the issue then try running the ram at 1333 as the 1090t imc is only 1333 (amd requested I run native 1333 ram for all tests )
If still nothing then you could try turning off the core or cores that fail during your torture test (if your motherboard will let you)
I had to do this testing with amd to establish that i had burnt out my imc on my 1090t. Amd blames overclocked ram for my burnt up cores ( anything over 1333 is considered over clocked ram) best of luck I hope this helps solve your issue

^ +1

To OP; henydiah has been trying to tell you to go ahead and uninstall the AOD, you don't need it running in the background, it's been problematic and buggy for some lately anyway.

Use CPU-Z to monitor OP/SYS output settings and a program like Core Temp for temperatures.

I never had my core voltage set above 1.5 I don't know where you read that. I plan on getting water cooling supplies next week when I get paid...

@henydiah, alright I won't use AOD anymore. I was just jusing it after a Prime95 test failed to see how long I could run my CPU at full load, that is all. I was just using it as something that can get me going full load to see where my temperature range is at. I do have a cooling problem and I for sure need to address it. Once I have that covered I will be purchasing a new mobo and PSU. I will report back when those issues are resolved. Thanks a lot henydiah

Best answer selected by pcenvy88.

You're correct ryan

I put it up to 1.5 one time just to see if it'd work. At this point I was just running around with my head cut off trying to get one configuration to work. But yeah, I never let it go past 1.5 and I only had it set there once. Once it failed I was back below 1.4v

I solved the problem though. Turns out it WAS a heat issue. I turned down my NB frequency and voltage a little bit. Turned down my cpu voltage to 1.375 and I have been running prime95 small fft's for about 4 hours now

Not so good news. Turned off prime95 after 5 hours.... Wanted to play some bc2. After half hour of bc2, i got hyper transport error again. *** MEEEE. Oh well, I'll figure it out someday

Also try in default system, if you still ge bsod / error , uninstall and reinstall driver vga/sound (that can caused error), Uninstall your game and reinstall again
All install in default system