20-PIN PSU VS 24-PIN Mobo hookup?

G

Glenn9643

New Member
My Chaintech VNF4 Mobo just arrived along with AMD 64 3000 CPU and 1G Corsair ValueSelect RAM. My PSU is ANTEC TruePower 480 with a 20-pin connector. The Mobo has a 24-pin connector.
Each connector has a "latch" connector device at the center on one side. Should the PSU 20-pin connector be inserted into the Mobo connector "centered" so that the latching connectors line up, with two open pins on each end of the Mobo connector? If the PSU connector should be aligned with one end of the Mobo connector leaving 4 mobo pins vacant on and end, how can I determine which ends to align and which pins should remain vacant? The POS manual with the Mobo only says to "Plug in the ATX power cable to the mainboard's power connector and make sure the cable is connected". Also, there is no mention in the Mobo manual of the 4pin black/yellow 12v connector, but there's a connector on the Mobo labeled PW3. As the connectors seem to fit am I to assume that this PSU connector should be plugged into PW3? Thanks for any help here.
 
I have heard some mobos are compatable with the older style ATX connection, I even beleive some without converteres.

If I were you, I would look around for a converter. I have no clue if yours is compatable, and it's better to be safe than sorry.
 
Yes the 2x2 connector should plug into the 2x2 slot on the motherboard, the 20pin should be keyed so that it will only fit the way its supposed to in the 24pin slot. It should align to the left side of the connector.
 
Last edited:
Cromewell,
This is what I came up with from a "sticky" at AnandTec..."With the retainer clip on the right, the top four sockets will be empty. When the retainer clip is on the left, the bottom four sockets will be empty." I thought that most of these connectors were grooved or slotted so as to only fit one way, but mine don't seem to be. That's part of the reason for such a stupid question.
http://forums.anandtech.com/message...eyword=&STARTPAGE=2&FTVAR_FORUMVIEWTMP=Linear
 
would you believe 2 brain farts in one day :o? I was right the first time
24to20.jpg
 
Thanks for your help. That's how I've got it connected.
I've found threads here and other forums with pictures and detail indicating how the connector should be inserted.
I've connected the PSU connectors, including the 4pin molex black/yellow connector for the CPU, to the Mobo as pictured in threads where the system was operating. RAM, CPU, and graphics card installed. Powered up... and nothing. No beeps. No CPU fan. No Mobo fan. I've tried attaching the case power leads for the front switch but it made no difference. I've removed and reinstalled the RAM, CPU, and graphics card. There's power going to the PSU, but when I power up nothing happens. Not even the PSU fan...
How can I determine if it's the Mobo, CPU, or what so I can RMA? Thanks for any advise...
 
Yes. I don't think it's anything that simple, but you can never tell. I've given up on it and will return to NewEgg tomorrow. Thanks for your help, and I'll try to remember and post results with new Mobo.
 
Is there a light on the mobo? Regardless if the PSU isnt turning on then thats pretty problemsome :D (could either be messed up mobo, messed up PSU or both still)
 
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