Hello,
I bought 4 R9 280 for mining, and I want to flash a mining bios into it, there's a lot of optimized mining bios for a lot of GPUs but I can't find any for this one !
And I'm too afraid to modify it by myself, except if you have a good link with a good step-to-step to modify the bios for this gpu, this it what it looks like :
I also have one Asus HD7970 Matrix Platinum.
Thank you all!
The older GPUs don't really benefit from any bios flashes.
With your r9 280x you can mine either Equihash (ZCASH) or Cryptonight (XMR / ETN ) coins.
Equihash current is the most profitable. You should get around 320H/s or so.
Your Matrix Platimum is a very powerful GPU. Its actually very rare. You can probably OC that one and get a little faster speeds.
Is your other GPUs the Sapphire Dual-X R9 280X? Be cautious mining with those, they have been known to explode during mining from faulty overheating VRMs.