Quote from: vdragon on February 13, 2013, 11:30:08 AM

Quote from: ssateneth on February 13, 2013, 07:17:59 AM

Quote from: Hippie Tech on February 13, 2013, 05:19:36 AM

Quote from: ssateneth on February 13, 2013, 12:36:08 AM

I use these to get more PCI-E power plugs. http://www.newegg.com/Product/Product.aspx?Item=N82E16812198018
If I -have- to use a molex to get more PCI-E power plugs, I use the ones included with Sapphire cards. They're single molex, not double, and there are no missing wires in the PCI-E pwoer plug, unlike the ones I see in this thread. Their wires are pretty thick, so they don't get hot.

I avoid using them because I noticed some instability when I used one of those Sapphire 1x 4pin molex to 6pin on my then 5830.

When the cables get hot, that usually means that the psu is overheating and/or under severe load.

I had a 750W power supply powering two gigabyte 5850's off of a molex line. Didnt draw more than 450 watts at the wall, but the wires melted at the modular connection between molex and power supply. Power supply was not overheating or under severe load. It was the load on the wires. Too many amps.

Also there's some wrongly wired molex to PCI-E out there. I had one that had a 5v wire attached to a ground pin. I threw that away immediately. Dead short = not good. Yes some molex to pci-e use red wires but properly attach ground to ground, but this one was dead short.

5 series was pulling much more power then the 7... And when you said wrongly wired, i went through all of my spare cables. Found 2 Cheesy

Doesn't help that the gigabyte cards are voltage locked to something far above 1.0875v (Stable at 1015MHz at supposedly 1v? yeah right). Anyways, I have 2 5970 and 4 5870, all reference connected to one mobo and one PSU. 3.02 GHash @ 1v, 965 watts or 3.13 Mhash/joule. Not too bad for GPUs