Desktop powering off, randomly

[luggagepls]

Hi guys, would like to seek your assistance with this issue that has been plaguing me since this year...

I purchased my desktop from Aftershock a year back in December 2014 and everything has been smooth sailing until recently. Basically, the issue that I am facing right now is that my desktop just randomly powers off, as if someone had pulled the plug from the wall.

The desktop can either last the whole day (until shutdown) without facing any issues or 2 hours from boot up... what happens exactly is the computer suddenly powers off > attempts to power on by itself (LED turns on, fans start spinning) > power cut off (again). This process is repeated until either (1) I hold down the power button and wait a few minutes before turning the system back on, or (2) it repeats the cycle until it successfully turns on (after many times).

As the system is still covered under two years warranty, I have tried contacting Aftershock to take in the system for diagnosis and troubleshooting. They brought it in and conducted CPU, GPU stress tests and left it on overnight for a week straight. The system did not have any issues. I have also conducted a Memtest on the memory modules with no issues.

I have tried asking for a swap/replacement of the PSU but only to be turned down as they were only able to do so if they have confirmed it to be faulty.

I have no clue where to go from here and was wondering if there is anything I can do or say to Aftershock to prove that this issue exists during home use or is there any place I can go for assistance on this matter...

System:
CPU — Intel Core i7-4790 3.6GHz Quad-Core Processor
CPU Cooler — Corsair H80i Cooler
MOBO — ASRock Z97 PRO4 ATX LGA1150 Motherboard
Storage 1 — TOSHIBA 1TB 3.5 INCH HDD (Buffer Size 32MB)
Storage 2 — Samsung 840 EVO 500GB
GPU — ZOTAC GTX 970
Case — NZXT H440 Black+Red
Memory 1 & 3 — ADATA 16GB (2 x 8GB) DDR3-1600 Memory
Memory 2 & 4 — Crucial 16GB (2 x 8GB) DDR3-1600 Memory
PSU — Super Flower 600W 80Plus
OS — Windows 10 Pro

 

[jtjt00]

Check if the power cord that connect to your power supply unit is firm? I have a workstation at my company that also like that, randomly power off even a slight knock on the table is enough to power off it.

Once replaced the power cord cable, no more randomly power off.

 

[ZrE0_Cha0s]

could be mobo issues, but i just google no have issues like urs.

 

[alamakazim]

power supply.. I encounter such problem before

 

[jamboree]

happening to me too. how to test to really be sure it is the PSU faulty?

 

[sacredrays]

use another psu and see if same thing happening again or not...

becareful, psu faulty can cause other parts to breakdown too if not addressed...

 

[ZrE0_Cha0s]

Well u can try paper clip test. Google should have the video to show how.

 

[DiYuSiShen]

power point faulty, power cable faulty or PSU faulty.

 

[luggagepls]

Thanks everyone for your replies, really appreciate your help! Googled the issue and am trying to see if replacing the CMOS battery helps...

use another psu and see if same thing happening again or not...

becareful, psu faulty can cause other parts to breakdown too if not addressed...

power supply.. I encounter such problem before

power point faulty, power cable faulty or PSU faulty.

I don't hare a spare PSU lying around and Aftershock is not able to do a hardware swap as the PC didn't "die" while it was under their hands... running up and fine at times and then only to suddenly die after awhile.

Should I just go ahead and purchase a new PSU? Just worried that after buying a new PSU, the issue will still be around.

Well u can try paper clip test. Google should have the video to show how.

Correct me if I'm wrong, but doesn't this only test whether if the PSU is dead? Since my computer is still able to be start up, will this test be redundant?

 

[ZrE0_Cha0s]

Thanks everyone for your replies, really appreciate your help! Googled the issue and am trying to see if replacing the CMOS battery helps...

......

Correct me if I'm wrong, but doesn't this only test whether if the PSU is dead? Since my computer is still able to be start up, will this test be redundant?

well yes it does test if ur psu is dead or not, but if u have digimeter, u can test if there is any volt or current passing though.

 

[alamakazim]

well yes it does test if ur psu is dead or not, but if u have digimeter, u can test if there is any volt or current passing though.

but no use... got load and no load different...


also weird.. at service centre working... but such thing happens... different environment will have different experience

so maybe can replace power cable and find a different power outlet

 

[DiYuSiShen]

Why not use your phone to video record down the problem ? If got video proof I think easier. I did it once with my light flickering Razer keyboard and ban Leong change it for me

 

[jtjt00]

Suspect it is the power cord that connect from mains to PSU socket. When TS brought rig to Aftershock, they used their own power cord to plug in and no issue. Back home, TS uses own power cord to plug in.

Get another power cord to try before you spend money on a new PSU.

 

[luggagepls]

Suspect it is the power cord that connect from mains to PSU socket. When TS brought rig to Aftershock, they used their own power cord to plug in and no issue. Back home, TS uses own power cord to plug in.

Get another power cord to try before you spend money on a new PSU.

Does the power cord have to be from the original supplier? Or just any random one?

Why not use your phone to video record down the problem ? If got video proof I think easier. I did it once with my light flickering Razer keyboard and ban Leong change it for me

Attached it along with the email prior to sending it in, not sure if they've seen it though...

Once again, thanks for your opinion guys, after changing the CMOS battery, the computer doesn't seem to be abruptly powering down since (might have jinxed it though). However, one thing that is worrying me is the temperature within the case, it gets incredibly hot (hitting 99 degrees at startup) and sits at 60/70 at idle.

When gaming this value sometimes goes up to 80 (case sensor and CPU temperature both are at similar temperatures to each other). Am not sure whether the extreme temperatures are causing the shutdown or is it the opening of the case and re-inserting of items...

 

[jtjt00]

Does the power cord have to be from the original supplier? Or just any random one?.......

No, so long any power cord that is rated at 10A 250V will do. Also check if firm when plug into the PSU socket.

 

[lalalalalala]

Does the power cord have to be from the original supplier? Or just any random one?



Attached it along with the email prior to sending it in, not sure if they've seen it though...

Once again, thanks for your opinion guys, after changing the CMOS battery, the computer doesn't seem to be abruptly powering down since (might have jinxed it though). However, one thing that is worrying me is the temperature within the case, it gets incredibly hot (hitting 99 degrees at startup) and sits at 60/70 at idle.

When gaming this value sometimes goes up to 80 (case sensor and CPU temperature both are at similar temperatures to each other). Am not sure whether the extreme temperatures are causing the shutdown or is it the opening of the case and re-inserting of items...

Got clean the fan? 99 degrees might trigger BIOS auto shutdown.

Sent from OnePlus A0001 using GAGT

 

[zephyr11]

https://en.wikipedia.org/wiki/Extension_cord

do you use this?

could be this or the wall socket that you plug into. can try with another extension cord or another multi plug.

 

[jtjt00]

Missed the high temperature part, most likely auto shutdown to prevent high temperature damage.

Since your rig is from 2014, I assume most fan/HSF are full of dust. This usually result in high temperature at idle and load usage.