Prime 95 how long is long enough

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Hiro400

n00b
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Nov 16, 2004
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system is athlon 64 3200 @ 240 X 10 CPU voltage 1.45
1gb OCZ plat rev 2 3200 ram 2T disabled everything else auto
asus a8v rev 2 1008 bios
BFG 6800 GT OC
74gb WD HD - on promise controller
250gb WD HD - on promise controller
NEC 3500a firmware 1.17
Enermax 485W PSU dual 12v rails supplying 18A on each rail
Bare minimum fan cooling - stock cpu fan and 4 case fans

Question been trying to OC this system -
At 250X10 i get prime95 rounding error within a 5 minutes
at 240X10 i get prime 95 rounding error at 29 hours 45 minutes

Since it has run past 24 hours would people consider the system stable?

I've read the FAQs on OCing but am still confused about what mem setting I should run

My 3rdmark05 at 1024X768 was 4777 - is this respectable I see guys getting high 6000 or low 7000. Is this possible with just fan cooling?
 
my rule of thumb is 3 days at priority 10.

Go into one of the menus, I forget where it is but it should say password, it is 9876

then it enables the other advanced options. Set priority to 10 and then just run it, I leave this for 3 days, if nothing is wrong then I am content with my system.
 
i consider my system stable after around 4-6 hours of small and large fft's each. so in total thats around 8-12 hours of prime before i consider my system stable. i know its not as much as most people say to run prime for, but i havent had a crash or reboot or anything happening that would tell me my system is unstable. it's all up to you on how long you want to run prime to call your system stable. but since you ran for nearly 30 hours before getting an error, i'd call your system stable.

also, you should manually input your timings for yout ocz plat rev2's, just in case it isnt as tight as it could be. at 240 you should be able to do 2.5-3-3-x timings. thats a good overclock you have there. my 3000+ does 2.5@1.55v and my twinx xl is running a 5:3 divider for 227.5@2.5-3-3-10. try upping your vcore to 1.475 or so to see if you can reach 2.5 stable. hell try 1.5 for 2.6.

hm i just noticed you're running the 1008 bios. update that to 1009-004 so that you can use vcores in between 1.45 and 1.55.
 
Personally if it lasts for 10min my system is fine. I know this isnt the "recommended" way but I've never came across any system instability of any kind. And I multitask high resource programs like none other, so I think its overrated.
 
n64man120 said:
Personally if it lasts for 10min my system is fine. I .
Click to expand...

10 mins is rediculous. Ive had failures after 16 hours. I cant remember it ever failing within 10 mins.

I do 24 hours of Prime 95 and UT2004 running together. It seems that Prime 95 by itself is no longer enough to put a CPU to full 100% load so the UT2004 makes up the diff.
 
I can boot at 2.7 Ghz, but Prime won't last 10 seconds and it's not 3D stable.

I can however boot at 2.64 Ghz, Prime will fail after a few minutes, but I've not noticed any problems in games or benches yet at all. Generally 24 hours is considered stable, but personally I don't trust Prime all that much. Play games for an extended period. If you get hard boots or anything, drop it back a few Mhz, but I wouldn't go by just Prime only.

Kind of how no one goes by 3DMark for FPS details and just runs games. If all my games are stable and cause no issues, why would I care if Prime fails in 2 minutes?
 
Really just depends on what you're doing. If others are relying on the numbers that come out of your CPU to be perfect, then it should be able to run Prime95 indefinitely without errors. Most common example of this is any sort of grid computing SETI/Folding etc

If you're creating content such as audio and video encoding, you'd probably want to be stable in Prime for a couple hours, so you can be pretty sure you won't get any bad frames or such in your content.

In my case all I do is game and surf - llast time I ran Prime it lasted about half an hour with my current OC. I've beat Doom 3 and HL2 in the past week and now playing Vampire. I haven't had a single crash and haven't seen any artifacting. So for my uses, I consider my system stable.
 
i start it before i go to bed.. if its still running when i get back from school im happy
 
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