Question Had system mostly on for 4 or 5 years, now fans spinning (idk why) and no video.

[songwriternyc]

Hi...
I have an Aorus Master x570 1.1 and a ryzen 5800x and anasus dual rtx 2070S...I was using vr and my computer shut down unexpectedly. I took out the cmos battery and graphics card for 10 min. then put them back, but the fans still spin up even though the only fan I should have going is my cpu fan, but still no video.
I've pretty much had it on for 4 or 5 years only needing to restart a few times a week. Using Windows 11...I assembled it a few years ago which was tough for me. I'm originally an Apple user, but do NOT like their prices...lol...Thank you for your help, hopefully.

 

[helpstar]

which power supply are you using?

try the gpu in a different system
try a different PSU

 

[songwriternyc]

which power supply are you using?

try the gpu in a different system
try a different PSU

I'm using a seasonic platinum tx 850...I don't have another system unfortunately...I have another of the same psu but only one set of cables....thanks. IDK. should I try a new cmos battery or is there a way to put a new bios on the board if I have no video? sorry if those are stupid questions? this was the only system I ever built and it took me over 8 hours! I have it in the open because the case was too small for me to screw with. It was working fine until a few days ago.

 

[helpstar]

the PSU is full modular, so you just have to remove the installed PSU, install the other and plug the same plugs back in. Be sure it´s really the same PSU model, otherwise wrong cables could destroy your system.

cmos battery shouldn´t be the culprit, these last about 5 to 10 years without problem. You can try if you want.
the motherboard most likely is not the problem, but you could try flashing the latest BIOS onto it using USB BIOS Flashback feature of your motherboard

View: https://www.youtube.com/watch?v=9-Le06cBIq0


you could try to unplug your hard drives and try getting into BIOS

 

[songwriternyc]

the PSU is full modular, so you just have to remove the installed PSU, install the other and plug the same plugs back in. Be sure it´s really the same PSU model, otherwise wrong cables could destroy your system.

cmos battery shouldn´t be the culprit, these last about 5 to 10 years without problem. You can try if you want.
the motherboard most likely is not the problem, but you could try flashing the latest BIOS onto it using USB BIOS Flashback feature of your motherboard

View: https://www.youtube.com/watch?v=9-Le06cBIq0


you could try to unplug your hard drives and try getting into BIOS

I will do all that tomorrow when I wake up. I'm using a chromebook to watch amazon prime. sounds like it will work. Thx again, helpstar.

 

[songwriternyc]

I will do all that tomorrow when I wake up. I'm using a chromebook to watch amazon prime. sounds like it will work. Thx again, helpstar.

Hi... there's a couple of things that I think may be important, but I didn't mention. sometimes I turn off the computer by holding the red power button on the board. Pretty rarely, but I tried that doesn't work no matter how long I hold it down. also, I don't think I remember the mb fan ever turning on. If this matters, pls let me know if I should do anything different? I'll check back today and tonight. I just want to be thourough.

 

[Misgar]

sometimes I turn off the computer by holding the red power button on the board.

Not a brilliant idea if this powers down the computer unceremoniously, without giving Windows the opportunity to shut down gracefully. On rare occasions this might corrupt Windows, but shouldn't stop the BIOS screen from appearing on the monitor screen.

should I try a new cmos battery

A new CR2032 should not cost more than a few dollars and there's no harm in trying a new battery.

If you have a multimeter, set it to the 20V DC range and check the old battery. Brand new, they're roughly 3.25V. After several years they drop to 3.00V. A few more years and they're down to 2.75V, at which point I replace them. They may continue to work down to 2.00V, but I prefer to change them before they die.

When I do encounter boards which refuse to boot up due to CR2032 battery problems, they check out at under 1.00V, which is not enough to retain the BIOS settings and boot drive options.

and anasus dual rtx 2070S

Does that mean you have two Asus RTX 2070 GPUs? If so, remove one of the cards and see if the computer POSTs with just one GPU. Install it in the PCIe x16 slot closest to the CPU. If there's no joy, fit the other GPU (on its own) in the same slot and try again. You might have a dead GPU card.

Alternatively, you might have meant to say "dual-fan RTX 2070", i.e. a single GPU card.

Either way, try another GPU in your system. It doesn't have to be anything fancy. Windows 11 might complain it doesn't meet a minimum standard, but even an old second-hand GT 730 from eBay should be enough to see something on the monitor during POST.
https://www.techpowerup.com/gpu-specs/geforce-gt-730.c2590

If you have a second PCIe x16 slot on your mobo, try the GPU in this slot too. It should work even if fed with only 8 or 4 lanes. This will help rule out a problem with the first (main) PCIe slot.