i am also making workstation with HP z800 Motherboard

[Aditya Singh]

Using Chief-tech full tower cabinet, Corsair 1000w power supply,Xeon x5650 dual CPU with cooler-master 414 heatshink, 8*8 64 GB ram, 1 TB ssd and 4 TB*2 8 TB HDD, Nvidia FX5800 card , win 10 pro and 24 inch dual monitor. its awesome. But must be hack at first power supply ATX cable due to something different power codes for motherboard

 

[TechyTed]

I have been tempted to get a bare Z800 mb.

I am building a frankensteinish, piece parts Dell T5500 at the moment, but if I had realized what the Z800 offered, might have gone that route instead.

 

[lexluthermiester]

if I had realized what the Z800 offered, might have gone that route instead.

Right. Same here.

 

[SamirD]

Depending on what you have available, I'd definitely upgrade that gpu as you can get much faster than the fx5800 now for fairly cheap. Even a little gtx 660 or better will double the performance--and you have the power supply for it already.

Also, since you're running just one x5650, I'd upgrade by adding a second one for another kick in the pants. And if you want to max it out, get dual x5690s if your motherboard can support it.

 

[phill]

Can get them with the Sandy Bridge CPUs in as well I've seen on Ebay, but they are holding some big money... I'd go with @SamirD as well, or if your concerned about power usage, grab some L5640's I have four of them here (sadly only two in use ) but there's a little power saving to be had between the two