Well I've flashed before using atiwinflash but just never did to much gpu ocing. I'm just trying to figure out why this cars is acting up. Basically so far I have had the most success running the omega driver seems like when I do beta one it does it more frequently. Last night I had omega driver and was playing close to 2hrs no trouble today I tried the beta again and maybe got 30 minutes. Just odd cause I know many others have success with the betas.
I certainly wont give you a lesson. atiwinflash is the express lane to bricking. The fact you have managed to do it really means nothing at this point. You are blindly searching for a bios that will stop a problem you have not yet diagnosed. You need to search and understand the issue and in ALL cases understand what a BIOS will DO for your system. In this case I will shed some light on your issue.
In general with the R9 series black screen issues are usually caused by low voltage which leads to unstable clocks. When the GPU load changes and the performance profile adjusts the voltage is usually too low on idle or load during the transition and the card stops responding. Driver auto restarts fix this issue but the problem remains. HOWEVER, This could be a sign of a bigger problem or failure. To decide whether or not a new BIOS is even needed you must first try all software methods of making your card stable. If you manage this it will tell you what to look for in your bios to make the change more permanent if you desire.
Though profiles can be saved in todays software to make sure the proper voltages and clocks are applied at boot up some people usually people with far more experience than yourself will flash a bios for a more permanent solution. Now if you spent 10min googling your particular issue and ignored the posts explaining things you didnt understand you would realise that most of the time this issue is low voltage related as I have stated before. In which case the best course of action to MAKE SURE it really is a problem is to download an overclocking utility that usually provides voltage modification and bumping the voltage up a little bit WITHOUT adjusting the clocks to see if it fixes the problem. I imagine I dont need to explain why you wouldnt change both the clocks and the voltage at the same time so I wont.
Now spending another 5min googleing at this point for 15min in total we see that the best and most commonly used OC software for GPUs is
Sapphire Trixx
and
MSI after burner.
we also see that most people start to bump voltage in 25mv increments. not to much not too little.
of course there are instructions about this as well had anyone spend a little time doing there own research instead of reading forum comments on IGN or some such.