Question "New" 2080 turns on but no signal, previous GPU still works fine

[zeghart]

Hey everyone, I recently bought a lightly used Zotac RTX 2080 Blower to replace my older GTX 1660 - but I can't get any signal after swapping in the card. Getting my 1660 back in works like a charm without any issues, so it seems to be purely something GPU related.

I tried reseating the card multiple times, cleaning the contacts, made double sure the power cables work (used both an 8+6 pigtail as well as two separate cables) but nothing changed.
The card gets power and the fan spins, but I get no signal to the monitor.

The only possibility I can think of (aside from the card just being busted) is that I'm not giving it enough power, but I'm using an EVGA Supernova 550 g2 with an MSI B450 Tomahawk, Ryzen 5 5600 and a couple of SSDs which according to most PSU calculators should be enough.

I'd like to make sure I've tried everything before making use of the buyers protection and returning the card - any ideas?

Thanks in advance for any suggestion!

 

[Lutfij]

EVGA Supernova 550 g2
How old is the PSU in your build?

The only possibility I can think of (aside from the card just being busted)
Have you tried dropping the GPU into the lower most slot on the motherboard? The RTX 2070's were used a lot when there was a mining craze. Did you verify the card was working before you purchased it?

Drop the RTX 2070 onto another known working system with 650W of power at the entire system's disposal. If it works there, then perhaps your motherboard might need a BIOS update(if that's pending).

 

[zeghart]

Have you tried dropping the GPU into the lower most slot on the motherboard?

I haven't, I'll give it a shot - but shouldn't it be ok if the 1660 works in the upper one? My PSU is a few years old (probably 4-5) but I have to say it has never given me problems and keeps working flawlessly with my old GPU

Did you verify the card was working before you purchased it?

Unfortunately no, I bought it online and the seller told me he tested it, but I have a 3 day buyer protection so I can just send it back if it's faulty. It's a 2080 not a 2070, according to the seller it came from some medical equipment that used realtime AI, it was supposedly never overclocked or used for mining.

Drop the RTX 2070 onto another known working system with 650W of power at the entire system's disposal. If it works there, then perhaps your motherboard might need a BIOS update(if that's pending).

I don't have a 650W PSU to test it with, unfortunately. My mobo has already been updated to the latest BIOS available though