![]() If it came from HP with 1 or 2 v2 Xeons installed it surely is a v2 motherboard. How often will you see a motherboard being sold intact with a V2 Xeon still installed from the original build? Very rare, but I have seen that. How many eBay Z820 motherboard sellers will have a picture of the BIOS first page showing the boot block date to send along with a used Z820 motherboard? Never seen that. ![]() You can't see this pic until a moderator releases it: The Z420 and the Z620 have a different decoder ring. ![]() Please note that all of this info is only for the Z820. Even if I was it would be better to just know what is presented in this post with the attached PDFs below. Here is a dogmatic statement: You never ever will be able to update a v1 to a v2 on the same motherboard (unless you are a microsoldering EEPROM-reflashing genius, which none of us are). The 2011 one means you have a v1 motherboard. ![]() The 2013 one means you have a v2 motherboard. The key info from BIOS is to see what boot block date is listed via BIOS. The way to get a v2 motherboard is to ignore the "PCB REV" number printed on the motherboard above the special bar code label, as DGroves said.
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