Using PS for HDD then Sata to computer

[defcon545]

So i have a problem right now, im trying to upgrade my computer's 250 to a 500. I want to clone the drives and i have two sata cables but only one power connector. I have a power supply from an old computer that has the power cable. Would i run into any trouble by using that seperate power supply to power only the HDD, then using the SATA cable for the computer? I cant do a clean wipe because i need to save some stuff and i have no access to an external and the files are too big for dropbox.

 

[fb39ca4]

It should work fine, you will just need to hotwire the second PSU so that it turns on. Here's a guide on how to do it: http://www.techwarelabs.com/guides/misc_mod/psumod/ Or, you could always buy a Molex to SATA power adapter.

 

[defcon545]

Thanks, I have that second power supply in a case right now and it has a motherboard in it, for it to turn on does it just need to be plugged into the mobo? I dont think it has a cpu or ram in it though if that matters.