Detected Power Supply Surge

MoreThanSane

Commendable
Sep 27, 2016
3
0
1,510
Hello,

Last night I returned to my computer after 2-3 minutes of being away to find it sitting at the ASUS "power supply surge detected" screen. Not word for word there, as I can't completely remember the message.

Anyway, I went through the BIOS (z170) and started it up. Everything looked fine, so I shut down and went to bed.

This morning I awoke to a computer that simply will not boot. When I press the power button the motherboard and graphics card LEDs pop on, but none of my fans start and nothing else happens.

I tried removing the graphics card, wondering if maybe my PSU is underperforming for some reason and that could be an issue. However, after doing so the same thing still occurs. LEDs pop on and motherboard wakes up, but not video output or anything. I think I can hear the HDD spin up as well.

My question: what should my next step in the troubleshooting process be? Is there anything else I can do to dial in on whether I have a bad mobo or a bad PSU? Or should I just send the PSU back and see what happens with the replacement?

Any help is very, VERY appreciated. I'm a software developer who works from home and this is my work computer, so... very unfortunate situation.

PS., if it helps, this is a fairly new build I finished about 3 weeks ago. Has worked great up until this point.

EDIT: Also, it was plugged into a surge protector as well.

EDIT2:

SPECS:
- Intel Core i7-6700K 4.0GHz Quad-Core Processor overclocked to 4.5ghz
- CRYORIG R1 Ultimate 76.0 CFM CPU Cooler
- Asus Z170-DELUXE ATX LGA1151 Motherboard
- G.Skill TridentZ Series 16GB (2 x 8GB) DDR4-3000 Memory
- Samsung 850 EVO-Series 500GB 2.5" Solid State Drive
- Seagate Barracuda 3TB 3.5" 7200RPM Internal Hard Drive
- Asus GeForce GTX 1080 8GB STRIX Video Card
- EVGA SuperNOVA G2 650W 80+ Gold Certified Fully-Modular ATX Power Supply
 
bad/damaged PSU, hopefully only the PSU died and didn't hurt anything else.

Replace that first and then go from there.

Is your surge protector like... recent? like say at least less then 5 years old?

Are you sure it's still working as a surge protector, they die after a few or a big enough surge hits them. Newer ones (that only cost maybe $30-50) can also diagnose if your wall outlets are supplying bad power.
 

Barty1884

Retired Moderator
Please post your full specs.

Can you confirm, are you overclocking at all? I would assume not for a work computer, but the Z170 chipset makes me curious. Sometimes over-volting an OC (or leaving an OC as adaptive) can trip the over-current protection on the motherboard.

Depending on the quality of your PSU, it should take the brunt of any true 'surge' than a surge protector doesn't.
The fact the over-voltage/surge warning appeared on screen leads me to believe it didn't protect as well as it could have.

If a quality PSU and a true power surge, a replacement PSU is in order given the symptoms.

If it's a poor quality PSU with minimal protection, troubleshooting any other component that may have been affected can be tricky.
 

MoreThanSane

Commendable
Sep 27, 2016
3
0
1,510
SPECS:
- Intel Core i7-6700K 4.0GHz Quad-Core Processor overclocked to 4.5ghz
- CRYORIG R1 Ultimate 76.0 CFM CPU Cooler
- Asus Z170-DELUXE ATX LGA1151 Motherboard
- G.Skill TridentZ Series 16GB (2 x 8GB) DDR4-3000 Memory
- Samsung 850 EVO-Series 500GB 2.5" Solid State Drive
- Seagate Barracuda 3TB 3.5" 7200RPM Internal Hard Drive
- Asus GeForce GTX 1080 8GB STRIX Video Card
- EVGA SuperNOVA G2 650W 80+ Gold Certified Fully-Modular ATX Power Supply

Surge protector is pretty new (about a year old in the $20-40 range) and seems to power my other computers fine (writing this from a 2013 iMac I plugged into the same surge protector).
 

MoreThanSane

Commendable
Sep 27, 2016
3
0
1,510
Quick update – I tested the power supply with a multimeter and I'm getting proper readings as far as I can tell. My first thought is that means it's likely the motherboard causing issues. I just can't think of a reason it would start up fine after the "surge" (in quotes because I've seen no evidence of a real surge) and then not boot 12 hours later.