October 5, 20232 yr Hi all! I have a strange problem with a card, i'm hoping to get some info or ideas. It has the solder holes for an 8-pin power plug, but only a 6-pin plug was installed at the factory. I get the above error message before proper POST. vCore is present. I have tried shorting the other 2 pins and I have tried wiring them to the appropriate 2 pins of an 8-pin power plug. Same error message. The PC has booted to Windows literally twice with this card installed, which makes me wonder if there's a bad connection somewhere but i've not been able to find it. How does the card/BIOS decide that the power cable is unplugged? Do false positives exist? Can this check be pypassed? Thanks!
October 5, 20232 yr https://electronics.stackexchange.com/questions/465726/what-are-sense-pins-in-8-pin-pci-express-power-plug 8-pin pcie has 2 sense pins. So probably you need to beidge them all
October 5, 20232 yr Author Didn't work There's a chip beside the power plug. I'm beginning to wonder if its damaged and putting out a false warning.
October 5, 20232 yr Author I desoldered the chip beside the PCI-E: it POSTed and booted into Windows on the first attempt!....although I get the same message if I do a warm restart. Meh. it's a bit of progress!
August 16, 20241 yr Huge necro bump on this, but any current sense amplifiers on the circuit at all that may have potentially failed?
August 16, 20241 yr It is likely voltage sense rather than current sense. May also be bios issue (and then it is GPIO tied to voltage rail with divider?) - when i was binning vbioses for some cards, some bioses had this issue)
August 30, 20241 yr Author If there was a chip failure, it was soft and I couldn't find any readings that gave it away- that's on me for not knowing enough about what values to expect.
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