Keith Garcia7
Newcomer
3 messages
joined Jul 2015
I had that exact same "wait, what?" moment about three months ago when I picked up a new power supply and realized the white wire on the 20-pin connector was totally missing. After doing a little digging, it turns out that missing lead doesn't actually matter for almost any motherboard built in the last decade or so.
You still run into those random off-brand, budget units floating around the market that don't strictly follow the ATX 2.XX specs, and those will often still have that wire. I actually used to run one of those cheap ones—a generic TM-420-PMSR type deal—with a modern motherboard, and since everything worked fine, it’s pretty clear whether that wire is necessary for a PC to boot up or not.
http://en.wikipedia.org/wiki/Power_s...nit_(computer)
http://en.wikipedia.org/wiki/ATX