My motherboard died and I bought a used replacement. The replacement board has the ESN from the machine that had been trashed and sold in parts. It works great but the serial embedded in it is different than the one in my workstation's case. On the Z820 you could change it in the BIOS (Ctrl-A in the Security menu) but the same procedure does not work in the Z840. I just want it all to match. Any ideas? TIA
Thanks for taking the time for the response. I have tried it (the app) but it does not work ... it appears modifying the ESN has been turned into a 'write once' option. Control-A, I have been told, works only if the ESN is missing (blank), as in a brand new board. Once it is iserted then Control-A does not work any longer. Surely there must be a secret set of keystrokes to modify it in the event of input errors.
Z840 should still be under 3-year warranty by HP, so if the motherboard 'dies', expect HP Support to provide a brand-new motherboard at no cost, and then it is the responsibility of HP technician to insert the correct serial number and other system-specific info' that should be included in the BIOS.
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