Hello everyone. This is my first post on the site so I will try to be descriptive as possible. Last night I got a hp proliant DL380 G6 off of gragslist in my area for $20 . It's a 16 thread with 64 gb beast. I want to make it a project to turn it into a cheap gaming rig. My question is it has a 16x slot with a riser with 2 x8 slots. Can I take out the riser and use the full x16 slot? How would I power a gpu that needs a 6 pin from the psu? Would I need to switch it out with a desktop psu ? The psu that are in it are 2 750 watt. Thanks KS for any feed back. I appreciate it.