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Serious question, do you check cable connections before deep diving?
I had a client's machine that wouldn't post after a parts swap. Wasted time pulling the motherboard and testing the PSU. The problem was a slightly unplugged fan header blocking the boot process. Pushing it in fully got the system running right away. It's a small thing, but now I always do a visual cable check first.
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olivia3917mo ago
Twice, reseating the motherboard power cable solved it.
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alexr657mo ago
Oh man, this reminds me of a forum post I read a while back. Someone had a similar issue where their PC wouldn't boot, and it turned out to be a slightly loose 24-pin connector. I guess even a tiny gap can mess with the power delivery enough to stop everything from starting up properly. So yeah, checking all those cables first makes a lot of sense, even the ones you wouldn't think matter. It's crazy how something so simple can cause such a headache.
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ramirez.john7mo ago
A loose fan header stopping a computer from posting is wild to me. In my experience, those are just for cooling and shouldn't affect startup. Your mileage may vary, but I'm doing a full cable inspection first from now on.
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