The computer freezes when stressed

gs0ls

Reputable
Jun 22, 2014
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4,510
So I've just built a PC with the following specs

HDD WD Blue 1TB 7200rpm 64MB SATA
Intel® CoreTM i5-4460%2C 3.2GHz Haswell
8GB Kingston HyperX BEAST
Gigabyte B85M-D3H motherboard
EVGA NVIDIA GeForce GTX 660 SC 2048MB

The problems with this PC started after a few minutes of playing CoD Ghosts when it froze. I restarted the PC and it said that there was no bootable device found. I opened the case and reconnected the HDD cables. I turned it on and it worked perfectly fine. I decided to run WD LifeGuard and it passed the Quick test. Then I ran 3DMark Professional and after a few minutes of benchmarking it froze again. I restarted it and the problem with "no bootable device found" was present again. I turned it off for a few minutes and after I turned it on it worked fine.

What do you think it's the problem.

Thank you in advance.
 
Solution
The PSU could be the problem too. Some 500W PSUs do not put out a full 500W. And sometimes their Amps output is not as high as it should be either.

Could not tell exactly from that picture but it kind of looks like at least 2 rails. Cannot read the Amps either.

A better PSU with a single 12V rail is more like it.

This is from EVGA's web site for their 660 SC.

Requirements

Minimum of a 450 Watt power supply.

(Minimum recommended power supply with +12 Volt current rating of 24 Amps.)

********************************

I bet your PSU is struggling with the amps output.

gs0ls

Reputable
Jun 22, 2014
4
0
4,510
I think the CPU temp is absolutely normal (39C, with 10% load). I think the cables are secure. Otherwise why would the PC work in normal load ?
But the HDD "shares" the cable that comes from the power supply with the GPU... maybe this is the problem ?

In normal load the GPU temp is 35C, with the fan running at 26%.
 
The PSU could be the problem too. Some 500W PSUs do not put out a full 500W. And sometimes their Amps output is not as high as it should be either.

Could not tell exactly from that picture but it kind of looks like at least 2 rails. Cannot read the Amps either.

A better PSU with a single 12V rail is more like it.

This is from EVGA's web site for their 660 SC.

Requirements

Minimum of a 450 Watt power supply.

(Minimum recommended power supply with +12 Volt current rating of 24 Amps.)

********************************

I bet your PSU is struggling with the amps output.
 
Solution