solved. See bottom of this post.
MSI Z790 Carbon
T-Force 2 x 16GB DDR5 6400
Core i7 12700K (temporary CPU)
I have another post on here where I was complaining about Intel support. I have a Core i9 13900K that I had to fight tooth and nail to get an RMA. Not that there was any issue with the boxed unit, me having to provide info or anything else, it was just the third party company that they have to look after their support and warranty is just incredibly bad.
I believe the 13900K fell victim to the motherboard overpower issue. I was able to get it to run somewhat stable, but setting an over voltage of 0.04v, no overclock.
I finally got the RMA, and I sent back my 13900K today. I had it in my system (the motherboard and RAM are just a week old) up until the weekend when I put the 12700K in. It's a custom loop, so I had to drain it, move everything around, etc. I booted up this afternoon and I wanted to get into the BIOS to make some changes since it's a different CPU, but it won't let me. If I use the delete key, I get stuck at A6 debug code (I've tried many, many times now). A6 is SCSI detect, but I'm only running m.2 drives, no IDE. If I try to use Shift while restarting, or the BIOS option from the System setting, when it restarts, the debug code gets stuck at 26, which is nothing.
I can get into Windows no problem (as I said, restarting using Shift, or the BIOS option from System settings didn't work). I have tried resetting the BIOS from the button on the back panel, which did work because now my RAM is running at 4800.
Solved: Short answer, turns out it was a bad flash on the GPU. I got back the MSI RTX4090 Suprim from RMA. When I got it back, I never tried to get into the BIOS, so I can't say it was working, but I doubt it. I could get into the BIOS if I pulled the GPU and used the onboard graphics. Even in the BIOS, I tried turning on GoToBIOS, where you hold down the power button for 4 seconds, it takes you to the BIOS. Same thing, A6 post code, nothing on the screen with the RTX4090 installed (even trying to have a display plugged into the iGPU). Strange thing, A6 is shown when you actually do get into the BIOS. So I'm thinking, it was always getting into the BIOS, but nothing was being displayed.
I tried both BIOS's on the RTX4090, same thing
I used NVFlash64 and flashed another ROM onto the RTX4090, and no more problems. Gets into the BIOS fine, runs fine, etc. Still shows A6 when in the BIOS, but it's displaying now.
MSI Z790 Carbon
T-Force 2 x 16GB DDR5 6400
Core i7 12700K (temporary CPU)
I have another post on here where I was complaining about Intel support. I have a Core i9 13900K that I had to fight tooth and nail to get an RMA. Not that there was any issue with the boxed unit, me having to provide info or anything else, it was just the third party company that they have to look after their support and warranty is just incredibly bad.
I believe the 13900K fell victim to the motherboard overpower issue. I was able to get it to run somewhat stable, but setting an over voltage of 0.04v, no overclock.
I finally got the RMA, and I sent back my 13900K today. I had it in my system (the motherboard and RAM are just a week old) up until the weekend when I put the 12700K in. It's a custom loop, so I had to drain it, move everything around, etc. I booted up this afternoon and I wanted to get into the BIOS to make some changes since it's a different CPU, but it won't let me. If I use the delete key, I get stuck at A6 debug code (I've tried many, many times now). A6 is SCSI detect, but I'm only running m.2 drives, no IDE. If I try to use Shift while restarting, or the BIOS option from the System setting, when it restarts, the debug code gets stuck at 26, which is nothing.
I can get into Windows no problem (as I said, restarting using Shift, or the BIOS option from System settings didn't work). I have tried resetting the BIOS from the button on the back panel, which did work because now my RAM is running at 4800.
Solved: Short answer, turns out it was a bad flash on the GPU. I got back the MSI RTX4090 Suprim from RMA. When I got it back, I never tried to get into the BIOS, so I can't say it was working, but I doubt it. I could get into the BIOS if I pulled the GPU and used the onboard graphics. Even in the BIOS, I tried turning on GoToBIOS, where you hold down the power button for 4 seconds, it takes you to the BIOS. Same thing, A6 post code, nothing on the screen with the RTX4090 installed (even trying to have a display plugged into the iGPU). Strange thing, A6 is shown when you actually do get into the BIOS. So I'm thinking, it was always getting into the BIOS, but nothing was being displayed.
I tried both BIOS's on the RTX4090, same thing
I used NVFlash64 and flashed another ROM onto the RTX4090, and no more problems. Gets into the BIOS fine, runs fine, etc. Still shows A6 when in the BIOS, but it's displaying now.
Last edited:
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