Re-flashed soft brick RX 480 with strange issues...

[K_C]

Hey all,

Could someone shed some light on the issues I'm having?

I soft bricked my Sapphire 4GB RX 480 whilst trying to mess around with memory timings in my BIOS.

No biggie I saved the original BIOS using ATIFlash and used the Paperclip Method to post the card into Windows.

I re-flashed my original BIOS.

Here's the issue, GPU-Z shows no Texal Fill Rates, no GPU speed, hmmmm

Watmann allows me to change the speed and voltages so it shows as running at 1260mhz GPU and 2000mhz Memory no problems.

Windows shows an issue with the device in Device Manager.

I use this card for mining not gaming and when starting up my miner I get 4-5mhz hashrate when before I used to get 23-25mhz pre-modded.

Any suggestions to bring this card back to life from anyone more knowledgeable would be great, many thanks.

 

[Armageus]

Doesn't sound like you are alone:
http://www.overclock.net/t/1604567/polaris-bios-editing-rx5xx-rx4xx/960

How big was the backup of your BIOS file? If it wasn't 512Kb then sounds like that could be an issue, so suggest sourcing a replacement file and flashing that.

 

[K_C]

Yeah easy to do I suppose when messing with memory straps etc, however I find it really strange, maybe it is the file size and incorrect checksum, I hadn't read that post so I'll use DDU as per the post and try looking at the ROM file again.

Glad I'm not the only one though!