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General discussion

Computer not powering on after graphics issue

Aug 9, 2019 3:47PM PDT

Got kind of a weird situation. My comp is a bit older and today it started to glitch/artifact. It started when trying to play civ 6 where I would need to reboot the system, but then I would get it immediately on the boot screens right after restart and wouldn't go away.

I've had PSU issues like this before, so went out and got a new 750W corsair, but even with the new PSU, the problem was still there. I took out my video card and used the integrated one on the mobo and the artifacting was gone. Great, must be the video card then.

Returned the PSU and picked up an rtx 2070, plugged everything in, but now the system's LEDs blink on for a millisecond and then nothing happens. I take the new card out, try the integrated GPU, and it boots fine.

So here's where I'm at a loss. Trying the new PSU on the old card still gave me the same problem, so I thought it had to be the GPU. But now with the new GPU in, it seems like the PSU is failing to power on correctly even though it still works with the integrated graphics.

Specs are:
ASUS p8z68-v pro motherboard NVIDIA GTX 570 (old GPU) NVIDIA RTX 2070 (new GPU) 750W corsair PSU (both current and new one used to test that I returned, old one about 1.5 years) I5 Intel processor Windows 7 OS

I haven't tested voltage on the PSU and can't do the paperclip test since I dont have colored wires for some reason, but given it boots with the old and integrated video cards, I assume it's alright.

I've tried reseating, though the new card only fits in the second PCIe slot. I did test the old card in the second slot as well and it boots up, though still has the same artifacting meaning (I think) the slot is fine.

I also checked the mobo, and even though a bit older, is compatible with the new card.

So I'm out of ideas unless it's possible for the old PSU to have enough power for the old card and not enough for the new one or something like that.

Any insight you guys have would be appreciated.

Discussion is locked

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There is a BIG difference from the 570 to the 2070.
Aug 9, 2019 5:12PM PDT
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Possible that would match the symptom?
Aug 9, 2019 5:52PM PDT

If there was an issue with the EUFI compatibility, could it actually cause the entire system to not power on (apart from a split second of the LEDs blinking on then off)?

I would've assumed at worst I would just get a beep that no GPU was detected.

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It was worth a shot.
Aug 9, 2019 5:57PM PDT

I take it the BIOS is current so moving on.

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Will check tomorrow
Aug 9, 2019 6:13PM PDT

On making sure BIOS is current

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Can't get as far other user
Aug 9, 2019 5:54PM PDT

Looks like he's having issues at boot screen. I can't even turn my comp on.

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Then you have to strip it down.
Aug 9, 2019 5:57PM PDT

I've seen this due to motherboard mounting issues. The owner is usually incredulous about it but hey, pays the tech well as they strip the motherboard out to try a power up test on cardboard.

Before that you try with min parts and check the user's work as to GPU power connections and a CMOS reset.

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I'll give it a shot
Aug 9, 2019 6:12PM PDT

Alright, I'll pull the card and double check to make sure BIOS is current and do the CMOS reset.

Power cables are newish, but I'll check those too. The 2070 needs an 8 and 6 pin cable and I have 6+2 for the 8 slot which I'm assuming wouldn't be an issue.

I can check the motherboard to make sure it's mounted correctly, but don't know why it would work for 8 years then have an issue.

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As to the mount issue.
Aug 9, 2019 7:05PM PDT

We do not check to see if it's mounted right. We do the cardboard test to see if it's case or not related.

WHY it can be that? Changing the GPU can flex the motherboard just a bit and that extra mounting post finally hits a trace. Really can upset folk with "It worked for years, I don't believe you." But hey, we got it working and we can't guess why they push back so hard at times.

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Understood
Aug 9, 2019 7:56PM PDT

Wasn't implying I didn't believe you, I was actually wondering why that could be an issue. I didn't consider the new card's size/weight changing the motherboard to create a power issue.

Will test everything and report back.

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What is happening...
Aug 10, 2019 12:42PM PDT

So I updated my BIOS and reset the CMOS and thought I was making progress since everything seemed to boot up fine.

The only issue was there was no signal to the monitor from the new GPU. So I tried the old one and, instead of artifacting like before, now there was no signal either. Integrated GPU still worked fine.

Decided to start testing other components on the motherboard to be sure to rule them out. I took out my RAM and booted, didn't pass the check per the LED on the mobo as expected, so I put them back in and rebooted and now it still won't pass the check even after resetting the CMOS again. Other video cards are out, so it should be working like it was before, but isn't.

Kinda at my wits end here, would this be a good sign the motherboard is on its last legs or is there something else that might be causing it?

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Yes.
Aug 10, 2019 12:50PM PDT
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Positive it's the motherboard
Aug 10, 2019 1:57PM PDT

Reseated the CPU and heatsink and having same issues, will pass the CPU and stop at the RAM or GPU checks sporadically even with new PSU.

Guess I'll use this as an excuse to retire the 8 year old rig and build a new one.

Thanks for the help Profits.

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I know you didn't ask but.
Aug 10, 2019 3:38PM PDT