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Old 2004-08-21, 03:49   #1
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Default Overclocking Problems

Hi all,
I'm a little baffled here!!! I can run prime95 torture test no probs ( max time so-far around 4hrs ) but if I start using other programs it fails the test it is currently processing with a "rounding" error! Checking my memory seemed to be the recommended response that I've read from other posts but I've just done this for 2hrs no probs and am now running all tests ( currently on the bit fade ) still no errors! What do you guys think could be the prob? Any help is greatly appreciated,

My system specs

P4 2.6c @ 3.05 FSB 235
IC7-Max3 (bios 16)
2x256 DDR400 Hyper X (BH5) 1:1 Cas by Spd (dual channel)

(I think thats enough!)

Cheers
Chris
 
Old 2004-08-21, 13:42   #2
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Ok heres an update.. My ram passed with flying colours on full testing, it took around 9hrs (I hit escape during the bit fade test and had to re-run it doh!!!!) anyways still having the same prob, any takers???
 
Old 2004-08-21, 14:25   #3
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Try reducing the overclock on your FSB. What is the temp of the CPU while running Prime95? You can use Motherboard Monitor to find out.
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Old 2004-08-22, 01:08   #4
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Thanks for the reply!
My temps max out at around 46c under load after 7-8hrs (using abit eq, had similar readings from mbm5), seeing this is on a abit ic7 I'm under the impression this equates to around 36c on a asus. And hows this for bizarre, I ran the test minimised and it ran no probs for around 5 hrs! I have a 9800xt on cat 4.7 and have read a post in this forum about a guy having probs with nvidia drivers I wonder if I could have the same deal?
 
Old 2004-08-22, 01:18   #5
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Quote:
Originally Posted by Unregistered
Thanks for the reply!
My temps max out at around 46c under load after 7-8hrs (using abit eq, had similar readings from mbm5), seeing this is on a abit ic7 I'm under the impression this equates to around 36c on a asus. And hows this for bizarre, I ran the test minimised and it ran no probs for around 5 hrs! I have a 9800xt on cat 4.7 and have read a post in this forum about a guy having probs with nvidia drivers I wonder if I could have the same deal?
Is your board known to display higher temps than actual? Abit is one of the best mobo makers; I'm inclined to believe the 46C reading, which is on the high side. Drivers could be the problem, I suppose. The 46C reading, this is at standard FSB?
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Old 2004-08-22, 13:05   #6
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I believe 46c is probably the correct core temp, I ran the test ages ago before I replaced the heatsink,vid card and added case cooling, my temps used to peak into the mid fifties and it passed without a hitch!?! I know its recommended to be run for 24hrs but I'm happy if it runs for 6 without failing. Also I didnt think you would have any heat related probs on a northwood until you climbed into the 60's, prescotts idle high 50's with stock cooling!! Anyways thanks again for the input but I guess its back to the drawing board!
 
Old 2004-08-23, 02:15   #7
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Quote:
Originally Posted by Unregistered
but if I start using other programs it fails the test it is currently processing with a "rounding" error!
Do you have hyperthreading enabled? If so the other programs hyperthreaded together with Prime95 could be pushing the CPU or memory over the limit at that FSB setting even though they are OK when running separately. Try running two copies of the torture test at the same time, with no other programs active. If it fails then you may need to lower the FSB. My P4 ran fine at FSB 255 when not hyperthreading, but I had to lower it to FSB 245 to pass the hyperthreaded torture test.

A video driver problem is also a possibility. One person reported that their nvidia driver was sensitive to memory settings.
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Old 2004-08-23, 12:59   #8
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Thanks for the interesting info, I'll give it a go running two instances and see how it handles it. I'm really hoping my cpu hasn't reached its limit already!! I'd be pretty happy just to get it up near 3.2 and I'm not under the impression that thats an unrealistic goal condsidering my system! Oh well I shall soon see....
 
Old 2004-08-24, 07:31   #9
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Ok an update...
I tried running it again today, I could still get it to crash so in a last ditch attempt to get stabilty before reducing my o/clock I re-installed XP. To my suprise and delight its been running stable for the last 5hrs, so fingers crossed this will be the last post!
Thanks again for the replies.
 
Old 2004-08-24, 15:33   #10
moo
 
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o come on its not that bad reduceing ur oc i mean jeeze im useing a 1.8 p4 hehe they dont make those anymoer to bad there decent plus they dont use thermal greese they use thermal pad to attach heatsink to cpu.
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