RX 460 not detected after plugging in

Durkon

Commendable
Sep 10, 2016
3
0
1,510
Hello,

I have a Thinkcentre m90p desktop which I decided to upgrade for gaming. I bought RX 460 along with a 400W power source, plugged both in and started it up. It worked fine, but Windows couldn't detect the new GPU (Windows 7 Home Premium x64).

I read some advice for other people here which said that it probably still runs on the integrated Intel gpu, so I went to BIOS and changed the IGD option to Auto-select, so now it should use the RX 460 before the Intel gpu. Then I swapped the LCD to the RX 460. When I run the PC, it seems like it's working, but my LCD remains black.

If I remove the RX 460 card and plug the LCD back to the integrated gpu, it works again. My LCD is an old LG W2422 which only has a VGA input, and I'm using a DisplayPort to VGA converter (this one http://www.akasa.com.tw/search.php?seed=AK-CBDP04-20BK ).

So my question is, should Windows detect RX 460 even before I switch the Video in BIOS?
If no, could it be that I simply messed up with the cable and bought one that isn't "active"?
 

Durkon

Commendable
Sep 10, 2016
3
0
1,510
Well, it seems I have already found the solution myself by reading through the Lenovo support boards. Basically it seems Lenovo decided to ignore any newer AMD related GPU releases and they haven't updated their BIOS for Thinkcentres with support for newer cards since 2012 (while NVIDIA GPUs got updated). So using some kind of HD 6xxx series GPU might still work with Thinkcentres, but newer GPUs won't work, and you should pick an NVIDIA card.
 

vincent_media

Commendable
Jun 14, 2016
60
1
1,640
hi Durkon, i have similar problem with my sapphire rx 460, my pc (Dell t1600 lga 1155 socket) recognizes the card and boots up but the performance is very bad and there are some major sound bugs and black screens popping up from time to time. Do you know if my motherboard is compatible with the card ??