GTX1080 and Re Bar

Stoly

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So I have a friend who I recently changed his dead mobo. An Asus B550 with a Ryzen 5600G and a GTX1080.

I setup everything, installed windows, updated mobo/gpu drivers and everything seemed fine.

So today he installed WoW and upon start it would reboot the PC, no BSOD, just instant reboot. Hasn't tried any other game yet.

I asked him if REBAR was enabled in the bios as I recall it's not compatible with pascal cards and that might be the issue.
So he disabled it but the issue persists.
Should he reinstall the video drivers?
 
Stoly said:
So I have a friend who I recently changed his dead mobo. An Asus B550 with a Ryzen 5600G and a GTX1080.

I setup everything, installed windows, updated mobo/gpu drivers and everything seemed fine.

So today he installed WoW and upon start it would reboot the PC, no BSOD, just instant reboot. Hasn't tried any other game yet.

I asked him if REBAR was enabled in the bios as I recall it's not compatible with pascal cards and that might be the issue.
So he disabled it but the issue persists.
Should he reinstall the video drivers?
Click to expand...
No errors in event viewer or anything?
 
My want to run a memory checker - I've had the "instant reboot" issue with bad ram. Also bad PSU, but that's much harder to test for without just doing a swap, although you can get close if you stress test the system. Prime95+Furmark or whatever your favorite tool for pulling as much power and heat as you can possibly do simultaneously.

These are frustrating because they don't usually leave behind an error log (but do check that - that is a good idea and sometimes you get lucky and there's something there), it's just like someone hits the reset button on the case...

Also if you have anything overclocked - drop that. And make sure RAM timings are set correctly.
 
Nothing on the windows logs.

Ram settings at defaults, nothing overclocked.
 
Yeah I’d be looking hard at the PSU if the RAM passes a men check. PSUs are usually built to kill power if they get shorted or overloaded, and sometimes over time that gets a hair trigger on it and is a bit overly aggressive
 
RAM is new, testted it anyway and it seem to be ok.

I'm trying a different PSU
 
So I installed windows 10 on a different SSD, same results.

Also tried with my RTX3070Ti, it tooks took a littlebit longer but it still rebooted.

PSU seems likely. will try a new one soon.
 
Yeah, Rebar only works with 30 series on.

www.nvidia.com

GeForce RTX 30 Series Performance Accelerates With Resizable BAR Support | GeForce News | NVIDIA

Support available now for all GeForce RTX 30 Series Founders Edition graphics cards, and select GeForce RTX 30 Series laptops.<br/>
www.nvidia.com

As far as the reboot issue goes, not sure but PSU could definitely be the culprit. I recently had a BSOD issue with my new rig, running W11 24H2 that turned out to be a firmware problem with the OS NVMe (a WD drive). Once I updated that firmware everything was fine. I'm not aware if there's anything like that happening on W10 though.
 
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