Hi, I'm getting a new motherboard the: MSI 790GX G65 AM3 for my next PC Build, but I wont be getting the new 650watt Power Supply for it for another month, So the ? is Can I Plug my old ATX 350Watt 20pin Power Supply in this board to make sure everything is working? I will just be runnig the onboard video for now, and 1 HDD Drive, and 1 CD-Drive, and no extra case fans. Thanks
oh the MSI-790GX G65 AM3 Board will be running a AMD Phenom II X2 550 with 4GB DDR3 1333 of memory.
Depending on how old the power supply is, remember their capacity degrades as they get older, but without a graphics card you shouldnt be pulling anywhere near its capacity so it should be safe unless its an ancient power supply
the 20+4 pin connector allows you to connect it to motherboards that require both 20 and 24 pins, it just makes the power supply far more versatile.
Being 4 years old your PSU likely wont output what you need so its best to wait for your new one to come in.
Right now my 350W PSU runs a P4 2.8GHz single core CPU @68Watt, 1 stick of 512mb PC3200 ram, a total of five Fans, an AGP slot ATI 1650Pro 512mb video card, two DVD-Drives, and one 160gig Hard Drive. and 1 PCI tuner card.