I recently bought a new graphics card to Crossfire with my Radeon 7870. I bought a second card of exactly the same MSI card that I have.
My old power supply was: http://www.newegg.com/Product/Product.aspx?Item=N82E16817341017&Tpk=ocx%20600w, 600W OCZ model. The problem was that these cards each need 2 VGA cords and that power supply only has two, not four.
So I bought a new power supply, this one:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817438007 EVGA 750W power supply.
Here's where I start having problems:
So I install the new PSU and when I switch the power supply on switch, the fans "twitch". THey get power momentarily. The system won't boot, however.
I put my old PS back in and everything works fine.
So I try replacing components one by one and the system boots to BIOS if the hard drives are not connected. However, I get that message there is no boot disk.
When I connect the DVD drive and HDDs (I have two) to the PSU with the SATA cable, the power supply won't even start up when I hit the ON button.
What is going on?
My old power supply was: http://www.newegg.com/Product/Product.aspx?Item=N82E16817341017&Tpk=ocx%20600w, 600W OCZ model. The problem was that these cards each need 2 VGA cords and that power supply only has two, not four.
So I bought a new power supply, this one:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817438007 EVGA 750W power supply.
Here's where I start having problems:
So I install the new PSU and when I switch the power supply on switch, the fans "twitch". THey get power momentarily. The system won't boot, however.
I put my old PS back in and everything works fine.
So I try replacing components one by one and the system boots to BIOS if the hard drives are not connected. However, I get that message there is no boot disk.
When I connect the DVD drive and HDDs (I have two) to the PSU with the SATA cable, the power supply won't even start up when I hit the ON button.
What is going on?