Overclocking: Fatal Error (Rounding)

dr. sarf

dr. sarf

dr. sarf

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Been overclocking my AMD 6000+, been stable up until 3.2Ghz.
Running Prime 95 and after a few short seconds I get the error:

FATAL ERROR: Rounding was 0.4921875, expected less than 0.4
Hardware failure detected, consult stress.txt file.

Heres CPU-Z

screendump.jpg


If anyone can tell me how this can be overcome? The PC seems otherwise stable, just wont go through the stress test. Thanks
 
Yeah just in windows, not tried it in gaming! :rolleyes:
I'll try it with a bit more voltage, if I dont reply, I've killed the PC lol
 
Hi yes, it is different to CPUZ. Core in bios is now set to 1.40v, upped from 1.35 and 1.375. At 1.4v, it is still unstable at 3.212Ghz.
Bit nervous of increasing voltage any further. Is that definately the problem? And how far can you safely push the voltage?
Cheers Guys.
 
Hi guys. The temperature is fine, idling at about 36dg and and about 48dg under load. Tried the voltage increase by a few increments but was stull unstable. Yeah I only know some basic overclocking stuff, but why does changing cpu fsb & voltage affect what my ram is doing?
I'm running Crucial Ballistix tracer, surely that should be able to cope with any tweaking?

Cheers
 
sd4.jpg


OK, got it running stable in Prime at 3.212Ghz.
Upped core voltage from 1.35v to 1.375v
Upped Ram voltage by 0.25v

Will run Prime for few hours and then try and increase again? Been going 10 mins now without error, whereas before it showed an error after 3-4 seconds.

edit: same error after 17mins :(
 
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Thanks for that MilanoChris. Yeah I had a good poke around in Bios and my M.I.T (Motherboard Intelligent Tweaker) but cant find it. I have the Gigabyte GA-M57SLI-S4 mobo.
Cheers
 
Thanks for that Info, just a bit confused though as there are lots of timing variables to set (about 7 or 8) and I went into my BIOS expecting to only see the numbers 5-3-3-15 then simply change them?
 
Yes I did mate, but it's all a bit confusing at first. :-S
I've reset the RAM timings now, the CPU FSB is at 218 and Clock speed is 3.281Ghz, with the core voltage still kept at 1.40v and ram voltage up by 0.25v at 5,5,5,15.

Im running Prime now and hoping to get past the 17min mark this time. If it's stable on Prime, I'll continue to increase FSB to a stable point, then start faffing with RAM timings as you suggest (lowering them, right?).

I know I may be annoying some peeps with the likes of this threade but as you say, all have to start somewhere. Have been doing a lot of reading about it but its a bit different when your on your own system setup and the life of the components rests at my hands. lol

Im also very glad I got the Arctic Freezer Pro from here - made a big difference to the CPU Coretemp over the stock fan. *thumbs up*

I'll let you know how I get on over next couple days, not rushing through the stepping up/stress testing.
Huge thanks to all so far. I'l be back at my next hurdle. lol
 
Cool, noted :)
And yeah - all these years and I never knew about Alt+ Print Screen!
Makes life squillions times easier! Pat on the back and much praise for you. lol
 
OK guys,
I'm 1 hour into running Prime and all good so far (fingers crossed). Whats the recommended time to run Prime for to get a sure stability result? I heard 8 hours, also heard half hour minimum, and also 3 hours? I feel cruel making my CPU run at 100% constantly. lol

I'm now at 3.33Ghz, with core voltage upped to 1.475v i think, and ram voltage up by 0.5v. Load temp at average 54dg, peaked 58dg.
 
I think its on the blend test now, cant really remember lol.
Sadly I dont have the 8500 as they were an extra £20 per module :(
I only have the 5300 atm, but I think they have the same voltage rating.

My bad - I've misread my RAM voltage in the Bios, I've only upped it by 0.075 so currently at 1.875v. CPU Core is 1.45v
I think I'll run the Blend over night and see how things are in the morning. If it's stable then I'll be happy at 3.333Ghz. :)
 
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OK next step lol.
Been altering memory timings. As you guys suggested, I increased timings to 5,5,5,15 while determining my CPU overclock. Then you said to reduce the timings until its unstable then knock it back one, which I'm now trying.
Prime fails on anything other than 5,5,5,15 and if I go down to 4,4,4,12 the mobo gives me an error beep and Windows wont boot.
Looking at Crucials site, these modules are rated at 3,3,3,12 but I cant get them to run owt like that.
Any thoughts? lol
 
on my motherboard I had to enter the Bios and then press Ctrl & F1, that then allowed me to access "Advanced Chipset Features" where ram timings can be modified, though this may be different for your Bios/Motherboard.
 
I think its 667? And I think its at 740 now, if I got my readings/figures correct. I dunno lol.
Maybe I should replace it with the more expensive 1066 stuff lol. No, calm down, I had a budget and I stuck to it. :eek:
 
Cheers mate - couldn't have done it wothout the hlep from you guys on here.
Funny really, I'm wanting to push it further like this, I mean this system is such a dramatic improvement over my previous, you'd wonder why I'd wanna overclock at all..

AMD Athlon 3200+ 2.2Ghz
2GB DDR Crucial RAM
Geforce FX 5500 128MB then onto ATI x1650Pro AGP 512MB

Then there's my partners Celeron 633 which she uses that came with 64MB SDRAM stock..... :rolleyes:
 
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