dissock

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Aug 17, 2010
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I have a new Acer ps 5221, which isn't powering on. I opened up the casing to find that the p4 cable isn't connected to anything.

Does anyone know where the p4 connects to (on the motherboard or otherwise)?
 
What's the "p4" cable? Please describe it or post a picture.

However, in the event that it is a 2X2 cable with two yellow wires on the side with the little catch and 2 black wires on the other side, it is the CPU power cable. It needs to be plugged in. Look for a matching socket on the motherboard somewhere around the CPU socket.
 

jhwitul

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Jul 21, 2011
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assuming you have a similar SFF computer to mine, the connections are as follows: P1 is the main motherboard power supply, P2 is the CPU power cable described above, and P3 and P4 are ESATA power for the HD and DVD-ROM. You may need to remove the cage holding these drives to attach the power cable.