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Hi fabs,

I don't recognize the error message, but it looks like a connection error: drivers, broken chip, broken bios programmer or bad connection. Can you read the contents of the bios chip?

Hello, I am new to this forum and I have just used the bios image Mr. Brown uploaded and It seems to work. A more complete description of my problem is posted here: https://forums.anandtech.com/threads/custom-dual-xeon-build-restarting-needed-a-couple-of-times-to-finally-start-up.2543896/#post-39394527 . I bought 2 Xeon X5650 cpu's a while ago and a Z800 rev. 002 to use them in, as described on Mr. Browns blog. I found out that starting up didn't go as smoothly and after a long time I read on this forum and the comments that it had to do with the software on the bios chip. So I bought a CH341A bios programmer and five SST 25VF016B IC's on Aliexpress and flashed the new bios chip with the software posted in this thread. I used a tool from this page: https://tosiek.pl/ch341-eeprom-and-spi-flash-programmer/ and I installed the drivers with Snappy Driver Installer. Something I noted was that the software says wrongfully how to place the chip in the programmer. The notch of the chip needs to be turned 180 degrees, otherwise it won't work in this case. To conclude, I unsoldered the old bios chip as insurance and soldered in the new one in and it seems to work, as it hasn't done anything weird in 5-10 boot ups. It needs more testing of course and I'm rendering a difficult 3D-scene right now to stress test it (as I don't want the new bios to cause instability or something). This is no hardware mod, as it is wrongfully called, but a software mod. I had to replace the bios, because it was difficult to flash it with the motherboard, but the only thing I changed is some software on the bios chip.