Connecting power supply tester with some cables still connected to pc

willabyblen

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Mar 21, 2013
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Hi what can happen if you use a power supply tester with some of the power supply cables still attached to the motherboard? my friend thought he had removed all the cables but forgot to remove the sata cables and the cpu cable (the 8pin one I believe) and then put just the pcie into the power supply tester. The tester did not turn on. would this wreck the pc even though he did not insert the 24 pin connector into the tester so it didn't have power to turn on? he only put the pcie cable into the tester on its own. I know the pc still turns on its just we can't test it because one of his parts is off for rma and after I told him it was a bad idea he's now worried.