Question Black screen on IDLE only with an R9 290 Tri-X ?

AiMagicBot

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Jun 11, 2018
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Hi there,

I have a Sapphine R9 290 Tri-X OC and I keep getting black screen when installing drivers. First, I have found that under stress GPU is working fine then I have found out that adding +13mv to the Core Voltage in MSI AfterBurner prevents it even when GPU is IDLE. Later on that many have that problem and the general solution was to add +25mv to the Core Voltage (someone claimed on guru3d forum that the newer VBIOS version added +25mv, I tried both his and Sapphire newer VBIOS unmodified but it didn't work without adding +13mv in AfterBurner).

Since my GPU only shows black screen when IDLE and works just fine if there is a stress load in the background I assume it is not exactly the same problem.
Anyhow, I want to make it a permanent solution. I want to add that +13mv in the VBIOS, but I don't know where exactly. Thought to save some time consulting the already (over) experienced guys here.

So far I changed all the 993 voltage values (in GPU Freq table it is 300MHz and in MEM Freq table it is 150MHz) to 1006 with HawaiiBiosReader.exe (since that is what I read from the sensors using GPU-Z, I don't want to thow unneeded voltage that would just heat up the card) - I chose to change that voltage value specifically since I came to the conclusion it is only unstable at the lower frequencies (I might be wrong but I am still experimenting here...). The weird thing is that now even with the +13mv Core Voltage on MSI AfterBurner it is crashing.

Enlighten me please! Any help would be appreciated! Also appreciate your time to read even if you don't have help to offer :)
 
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Update: Using this VBIOS it is no longer crashing but I lost some speed and it is concerning me that the VBIOS was not written for my PCB. Hence, it is only a temporary solution until I manage to fix the original VBIOS my card came with.
 
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Update: Using this VBIOS it is no longer crashing but I lost some speed and it is concerning me that the VBIOS was not written for my PCB. Hence, it is only a temporary solution until I manage to fix the original VBIOS my card came with.

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