I'm having trouble with a PC I'm building. I've installed the processor and memory and connected it up to the case and monitor but when I power it on nothing happens. Nothing on the screen and no beeps. I have a SATA HDD connected too which does nothing. Could it be the motherboard? When I take the memory out it does 3 long beeps, which according to the ASRock site means a RAM test problem which makes sense.
The first post has a relevance. Modern CPU's are now powered separately via a 4 pin connector and not via the main Power block
If you have therefore a MoBo with an unpopulated square connector and no connector from the Power supply to match it - then that is the problem and it is a new power supply you will need, with the appropriate 12v 4 pin in addition to the usual 20 pin block. or a suitable adaptor, Perhaps you have these too- these days they come with all sorts of extra adaptors, that we discard- until a something does not work - then we find we needed it after all.
Tried reseating the cpu, no luck, so I guess I'll try a new mobo, and then a new cpu (this is getting expensive)
Oh, and I have one more question if you don't mind, about the hard drive.
It a 200GB seagate barracuda, SATA. I've never used a sata disk before, there are the usual sata power and data connections, but also a small 4 pin thing marked as 'molex' on the drive. It's the size of a 4 pin floppy connector, but too small for one to fit. Does anyone know what this is?
Also does anyone know why its not powering up? The psu connectors all work fine with fans etc.