PC Shut Off Won't Turn Back On, Already Replaced Power Supply

senorrock · Nov 4, 2015

PC randomly shut off and wouldn't turn back on. My first thought was power supply, so I replaced that and it turned on first try. About 30-60 minutes later it's off again and won't turn back on. I waited for it to cool down and tried it again, the fan twitched, but that's it. Unplugged the power to the gpu, no luck. Any help would be greatly appreciated.

Tolik_ · Nov 4, 2015

When you turn on. how far do you get. Also does it makes any beeping noises. Also new psu might be bad too

senorrock · Nov 4, 2015

Tolik_ :

I didn't notice any unusual beeping. I was able to boot completely, and start downloading a game from Steam.

Barty1884 · Nov 4, 2015

What PSU?

Tolik_ · Nov 4, 2015

Few things you could try. Test your Ram by unplugging one of the time, or reset your cmos by taking out battery and hold turn on button for 10 sec

senorrock · Nov 4, 2015

Barty1884 :

New psu is a Sently Xplus model xpp725-hs. Old psu is a Thermaltake TR-700.

senorrock · Nov 4, 2015

Tolik_ :

Just tried these, no change.

Deeds4life · Nov 4, 2015

More than likely bad vregs on the motherboard. Whats the specs on it?

Barty1884 · Nov 4, 2015

It might well be the PSU - although you should probably list your full specs for detailed help.

That Sentey PSU isn't even 80+ Certified from what I can see (claims 75% efficiency and "multiple safeguards".....without really detailing what).

80+ certified PSUs are minimum 80% efficient at 20/50/80% ........I would assume the PSU claiming 75% efficiency is it's 'best' result, so likely at minimal load (you lose efficiency ever so slightly at full load in a quality PSU).

senorrock · Nov 4, 2015

Deeds4life :

Motherboard is an MSI 870a Fuzion

Barty1884 · Nov 4, 2015

senorrock :

What are your full specs?

senorrock · Nov 4, 2015

Barty1884 :

AMD Phenom 2 1055t
MSI Fuzion 870a MB
32gb XMS 3 DDR3 Ram
Windows 7
GTX650Ti Boost
Sently XPP725-HS Power Supply

Barty1884 · Nov 4, 2015

a good 725W PSU would power that rig more than comfortably (a good quality 500W unit would likely do it).

Reading a few reviews on Amazon and similar, seems to be lots of issues with that PSU .... while it's possible your issue relates to the motherboard, I would be inclined to lay the blame at the new PSU here.

Also, as a side note, when I look up that motherboard, it supports a max of 16GB in 4 slots (4x4GB), yet you have 32GB (4x8GB)? http://pcpartpicker.com/part/msi-motherboard-870afuzion

senorrock · Nov 4, 2015

Barty1884 :

I guess I'll return the PS if nobody has any other suggestions, but that just seems like a huge coincidence. I have 2x16gb sticks . MSI lists max memory at 32gb.

http://us.msi.com/product/mb/870A_Fuzion.html#hero-specification

Barty1884 · Nov 4, 2015

senorrock :

I don't necessarily think it's a huge coincidence - although unlucky, it's not unreasonable to expect.
You had a decent PSU that failed over time (it happens), and have replaced it unfortunately, with a poor quality PSU. Even if it turns out to be something else, I'd recommend you return that PSU and buy a quality unit - 550W would give you comfortable headroom.

Judging from the list pricing around $50 you might struggle to find a quality unit in that pricepoint, but the EVGA SuperNOVA GS 550W has a $20 rebate at the moment, so you end up paying $65 - if it helps.
http://pcpartpicker.com/part/evga-power-supply-220gs0550v1

I see the 32GB max now, strange PCPartPicker doesn't show that. Anyway, when they list 32GB, that would be utilizing the full slots, so 4x8GB - 2x16GB (if they exist) wouldn't likely work. Do you have server memory in your unit? As far as I know, 16GB DDR3 consumer-grade RAM modules aren't available.

senorrock · Nov 4, 2015

Barty1884 :

senorrock :

I don't necessarily think it's a huge coincidence - although unlucky, it's not unreasonable to expect.
You had a decent PSU that failed over time (it happens), and have replaced it unfortunately, with a poor quality PSU. Even if it turns out to be something else, I'd recommend you return that PSU and buy a quality unit - 550W would give you comfortable headroom.

Judging from the list pricing around $50 you might struggle to find a quality unit in that pricepoint, but the EVGA SuperNOVA GS 550W has a $20 rebate at the moment, so you end up paying $65 - if it helps.
http://pcpartpicker.com/part/evga-power-supply-220gs0550v1

I see the 32GB max now, strange PCPartPicker doesn't show that. Anyway, when they list 32GB, that would be utilizing the full slots, so 4x8GB - 2x16GB (if they exist) wouldn't likely work. Do you have server memory in your unit? As far as I know, 16GB DDR3 consumer-grade RAM modules aren't available.

This is what I'm using, it's worked for years. http://imgur.com/HLMdlgd

Barty1884 · Nov 4, 2015

senorrock :

Barty1884 :

senorrock :

I don't necessarily think it's a huge coincidence - although unlucky, it's not unreasonable to expect.
You had a decent PSU that failed over time (it happens), and have replaced it unfortunately, with a poor quality PSU. Even if it turns out to be something else, I'd recommend you return that PSU and buy a quality unit - 550W would give you comfortable headroom.

Judging from the list pricing around $50 you might struggle to find a quality unit in that pricepoint, but the EVGA SuperNOVA GS 550W has a $20 rebate at the moment, so you end up paying $65 - if it helps.
http://pcpartpicker.com/part/evga-power-supply-220gs0550v1

I see the 32GB max now, strange PCPartPicker doesn't show that. Anyway, when they list 32GB, that would be utilizing the full slots, so 4x8GB - 2x16GB (if they exist) wouldn't likely work. Do you have server memory in your unit? As far as I know, 16GB DDR3 consumer-grade RAM modules aren't available.

This is what I'm using, it's worked for years. http://imgur.com/HLMdlgd

That's a 16GB 'kit'. 2x8GB.
http://www.corsair.com/en/xms3-16gb-dual-channel-ddr3-memory-kit-cmx16gx3m2a1600c11

senorrock · Nov 5, 2015

Replaced the power supply, fans don't even twitch when I try to turn it on. Any other suggestions?

Barty1884 · Nov 5, 2015

senorrock :

I would take it all out of the case and inspect the board for any damage/signs of damage

If all looks good, breadboard with the basics (outside the case) and see.

Likely your motherboard now you've definitively ruled out the PSU

senorrock · Nov 21, 2015

senorrock :

*UPDATE*
I replaced the motherboard, and it turns on and stays on, but there is no signal to the monitors and the DVD drive won't stay open. Any ideas? I'm getting real tired of dealing with this so any help would be greatly appreciated.

Barty1884 · Nov 23, 2015

My advice is still as per my last post.

Take everything out of the case &see. Only mobo/CPU/HSF/1xRAM Module & PSU

PC Shut Off Won't Turn Back On, Already Replaced Power Supply

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