A couple of people there successfully flashed their BIOSes.ĭisable the 0xFF0000 to 0xFFFFFF boot block write protection using the jumper on the motherboard and flash in Linux or Windows using a tool like flashrom or FPT. I can’t link it, but look up “HP z820-e5-2600-v2-ivy-bridge-upgrade” and read through it, especially pages 5 to 10. Same goes for the Z620’s second CPU riser. HP haven’t absolutely confirmed this but I couldn’t find any actual differences between the boards discussed, only how exactly similar they are. The only difference between Zx20 version 1 (sandy bridge Xeons only) and Zx20 version 2 (sandy or ivy bridge Xeons) seems to be the boot block version: 2011 or 2013. For HP Z420, Z620, and Z820, it’s entirely possible, people have done it. I’ve been looking at this a lot recently.
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