Prime95 causes abrupt computer shutdown

Toggle sidebar Toggle sidebar
R

Rworwin

Reputable
Oct 2, 2014
27
0
4,530
Hello,

I have a recent build that I was looking to stress test. However, when I attempt to run Prime95 the computer immediately shuts down and then restarts, with windows reporting an unexpected shutdown. This is an immediate problem (as in, the second I hit the test button), leading me to believe heat can't be the culprit. Power shouldn't be a problem either, though. Here's my build:

CPU: i7 4790k
Motherboard: GA-Z97-UD5H-BK
RAM: 4x8gb G.Skill Ripjaw DDR3 (1.5v)
GPU: EVGA Geforce GTX 770 Superclocked
Case: Cooler Master Cosmos II
Primary Drive: Samsumg 850 EVO 500gb
Additional Drives: Western Digital Black 2tb, Western Digital Green 1.5tb, Western Digital Black 1.5tb
Power Supply: EVGA SuperNOVA 1050 GS

The computer is also plugged into a UPS, but the UPS should be more than overkill. In addition, other devices plugged into the UPS do not lose power, so I doubt the UPS is the point of failure.

The build is a little over 3 weeks old, and I'm able to run graphically demanding games for long periods of time with no stability issues and decent temperatures (the GPU does not exceed 80c, with the fans never exceeding 70%, and the CPU occasionally peaks over 50c, never exceeding 60c), leading me to believe the problem may lie in the memory or CPU.
 
Solution
Mr5oh
Even if you run the latest version of Prime95 it should just get hotter, it should not shut down immediately. I actually use the latest version when overclocking my 4690K as it gives you an absolute maximum temp. It's quite a bit hotter than 26.6 that everyone recommends using for the newer Intel chips.

Either way, to isolate it, try memtest, that will test just the memory. If that works then try 26.6, if it still happens you have a stability problem with the CPU.
Sort by date Sort by votes
If going to use Prime95. Do not use any version past 26.6.

I myself don't even use Prime95 (Have it installed but do not even bother using it). I recommend using ASUS Realbench, AIDA64 Extreme, or Intel XTU

What CPU cooler are you using?
 
Upvote 1 Downvote
Even if you run the latest version of Prime95 it should just get hotter, it should not shut down immediately. I actually use the latest version when overclocking my 4690K as it gives you an absolute maximum temp. It's quite a bit hotter than 26.6 that everyone recommends using for the newer Intel chips.

Either way, to isolate it, try memtest, that will test just the memory. If that works then try 26.6, if it still happens you have a stability problem with the CPU.
 
Upvote 1 Downvote
Solution
SkylerJabocs,

Woops, I forgot to include the cooler in my original post. I'm using a Noctua-NH-D14. The temperatures appear to be fine overall, rarely passing 50c. I was using Prime95 version 28.5. Could this be the cause of the issue?

Mr5oh,

I ran memtest for a solid hour (started just after I posted this). No errors, so it seems the memory is fine. In addition, the CPU was under some decent load and I didn't seem to have any problems.
 
Upvote 0 Downvote
Thanks for the help guys. v26.6 appears to work great. I only ran a 5 minute test, but I definitely did not encounter the immediate shut-down problem. My temperatures were hovering around 60c, but I'll run an overnight test to be sure. I don't believe the problem had anything to do with temperatures, since the shutdown was far too fast for that. Ultimately, I'm not sure exactly what the issue was unfortunately.

Thanks again.
 
Upvote 0 Downvote
Sounds likely that p95v28, the issues that causes the temp problems probably also caused a sudden need for power which wasnt getting filled fast enough so it blackscreened.

If your feeling experimental, would you care to get v28 back and giving your chip a manual fixed voltage and seing if it still blackscreened?

For science 😛
 
Upvote 0 Downvote


That's roughly what I see on my machine between the two versions. While I realize newer versions create much high temperatures than pretty much any other program would, I still use them, as it's a "true maximum" temp. I usually check 26.6 too as that's more representative of the temperature I would get from a CPU intensive program.



In my opinion if it won't run Prime95, there's a problem. A bit more extreme, but that's like taking your car to your mechanic because it won't turn left, and he says just don't turn left.

 
Upvote 0 Downvote


" In my opinion if it won't run Prime95, there's a problem. A bit more extreme, but that's like taking your car to your mechanic because it won't turn left, and he says just don't turn left. "



Actually its more like driving your car all day with the accelerator flat to the floor on a summer day in Florida and expecting it to not overheat
Stress testing does nothing except damage components IMO
 
Upvote 0 Downvote


Some might say its more like finding the already damaged components when it fails stress at stock. While its still in warranty.
 
Upvote 0 Downvote


Nope . Its roughly equivalent to putting the car in second gear on that hot Florida day and revving it till it wont go faster .
ANY car will break down if you do that to it . Its only a matter of time
 
Upvote 0 Downvote


more like buying a car that says it can do 170mph, then driving it at 170mph and it cacthes fire.... not fit for purpose and mis sold, send it back.

If it cant perform as its supposed to out the factory gates, its faulty simple as. Florida not withstanding.

and regardless these metaphores arent helping with a problem. If you dont want to try and fix it, don't post.

Its like saying ah its broken but good enough for me, would you accept good enough when you just forked out for some of the best? Your metaphorical car turn up without a door... ah its ok. No, i dont think so.
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom