Question RX 590 / 3600 / B450 compatibility?

[wheelmonkey]

Hi All, I have a recent build running a new Ryzen 5 3600 on an MSI B450 carbon mobo, 16GB Ram. I was using an old GPU (ancient GT 710), it was running fine. I got a new MSI RX 590 Armor OC recently and the system won't post. No HDMI output, black screen. The VGA error led on the mobo is on. This is actually the second card, returned the first because it had the same problem, MSI tech support said it was DOA. It seems unlikely that two in a row would be DOA though, so I'm wondering if there is some compatibility issue with B450 / Ryzen 3x00?

Other info:
I have the latest mobo bios installed.
PSU has a 6+2 and 6 pin PCI connectors. I've tried each separately and together. (RX 590 has two 8 pin connectors) My old GPU didn't use the aux power, so I even checked that there was 12V at the connectors.
I tried manually setting the PIC to gen3 in the bios.
I switched between CSM/UEFI, no change.
Tried both PCI slots. My old card works fine in either.

Anything else I should try, or just give up a return it? I got a good deal on Prime Day, so replacing it with something comparable will cost more.

 

[Metal Messiah.]

so I'm wondering if there is some compatibility issue with B450 / Ryzen 3x00?

NOPE, I don't think so. The card should work fine on that system.

 

[wheelmonkey]

That's what I thought. Does it seem weird to get two dead ones though? I tried clearing CMOS, still nothing.

 

[Metal Messiah.]

Does it seem weird to get two dead ones though?

Were both the cards brand NEW ? From where did you purchase them, list the shop name and web address, if applicable ? 2 dead cards in a row seem unlikely, but in hardware we can't say anything with surety.

 

[wheelmonkey]

Thanks for the responses. Yep, new from Amazon.com.

 

[NightHawkRMX]

That shouldn't happen.

What is the exact model and wattage of your psu? Polaris gets power-hungry in cards like the 590 when AMD set the default clocks very high.

 

[wheelmonkey]

Corsair VX550, 550 watts. It's older, but it has 6+2 and 6 pin PCI-E cables. I haven't used the PCI-E power cables since my old card didn't require it, but I did check for voltage at the connectors. No way to load test.

 

[NightHawkRMX]

I dont know much about the VX lineup (before my knowledge starts) but it should be good enough to boot the system.

 

[wheelmonkey]

Thanks, Yeah, that's what I thought. On the MSI forums it sounds like there are a lot of people having issues with their B450 boards and 3X00 CPUs, so I'm suspicious of the whole setup now. It was stable with the ancient GT 710 though...?

 

[TOMpel]

how come you sure it's not the same card they gave you?

 

[Metal Messiah.]

On the MSI forums it sounds like there are a lot of people having issues with their B450 boards and 3X00 CPUs, so I'm suspicious of the whole setup now.

What's the exact reason for the incompatibility issue with this setup ? BIOS problem ?

 

[wheelmonkey]

Amazon cross shipped, different S/N.

 

[wheelmonkey]

What's the exact reason for the incompatibility issue with this setup ? BIOS problem ?

Bios problem is suspected, it's still a beta bios, but it's not clear what the actual problem is. Haven't found any solution yet.

 

[Avro Arrow]

That's what I thought. Does it seem weird to get two dead ones though? I tried clearing CMOS, still nothing.

Try using another card (borrow from a friend who has old stuff lying around). It doesn't matter what one. If the PC works, it's the cards. If the PC doesn't work, it's the motherboard.

 

[wheelmonkey]

Thanks for the suggestions. My old GT 710 works fine, so it's a bad card. I updated to the new bios released today hoping, but still get the VGA error. Not giving me a whole lot of confidence in MSI.