Use Own PSU

[eltharraxin]

Would it be possible to use a single Corsair PSU for my Dell Poweredge T310 server? I'm using it as a PC instead of a server, but my graphics card pushes the usage over the 400W that the stock PSU can provide.

Thanks in advance.

 

[Aeacus]

What kind of CPU and GPU you have in there that PC's power draw is over 400W? Xeon X3480 and GTX 1080 Ti?

With PSUs and to be on the safe side, you'd want to have at least 100W excess wattage capacity on PSU side.
E.g X3480 and GTX 1080 Ti system consumes about 450W, more with CPU/GPU OC. For that kind of system, 650W PSU will do just fine. Especially since OC'd Xeons can draw twice their rated power consumption.

 

[eltharraxin]

What kind of CPU and GPU you have in there that PC's power draw is over 400W? Xeon X3480 and GTX 1080 Ti?

With PSUs and to be on the safe side, you'd want to have at least 100W excess wattage capacity on PSU side.
E.g X3480 and GTX 1080 Ti system consumes about 450W, more with CPU/GPU OC. For that kind of system, 650W PSU will do just fine. Especially since OC'd Xeons can draw twice their rated power consumption.

I've got a Xeon X3450 and trying to use a GTX 650 Ti Windforce Edition, and I've configured the CPU and Internal Peripherals to use as little power as possible (disabled Turbo Boost and internal USB ports).

 

[Aeacus]

GTX 650 Ti is 110W GPU, add the rest of the system to it at 200W (which includes your 95W CPU) and you're looking towards 320W or so. While 400W PSU would do for your system, it's too close for the comfort. Here, i'd use at least 450W or better yet, a 500W range PSU.
2nd concern is the amps on +12V rail on your stock PSU. GTX 650 Ti needs at least 20A at +12V rail to operate.

What model or part number Corsair PSU you have? Since build quality of Corsair units range from low to great quality.

 

[eltharraxin]

GTX 650 Ti is 110W GPU, add the rest of the system to it at 200W (which includes your 95W CPU) and you're looking towards 320W or so. While 400W PSU would do for your system, it's too close for the comfort. Here, i'd use at least 450W or better yet, a 500W range PSU.
2nd concern is the amps on +12V rail on your stock PSU. GTX 650 Ti needs at least 20A at +12V rail to operate.

What model or part number Corsair PSU you have? Since build quality of Corsair units range from low to great quality.

Corsair VS450 80+

 

[Rexper]

2nd concern is the amps on +12V rail on your stock PSU. GTX 650 Ti needs at least 20A at +12V rail to operate.

You must mean full system specs. Maximum wattage for the 650 ti is 110W, 9.1A on the 12V rail according to specs.

but my graphics card pushes the usage over the 400W that the stock PSU can provide.

Due to out-of-spec voltages or too low wattage? Did you measure using a power meter?

 

[Aeacus]

You must mean full system specs. Maximum wattage for the 650 ti is 110W, 9.1A on the 12V rail according to specs.

Yes, i meant for the whole system.

Corsair VS450 80+

Corsair VS series is the worst PSU offered by Corsair and that's a low quality unit. You may have even worse performance with Corsair unit than with your original Dell unit.
I wouldn't use VS series to power even an office PC without a dedicated GPU and which never sees any high loads, let alone powering a (gaming) PC with it with dedicated GPU in it.

Here, i suggest that you get yourself a good quality PSU which is tried, tested and proven to be reliable. For PSU brands, you can't go wong with Seasonic and here i also suggest that you buy any Seasonic unit in 500W range, e.g: M12II-520 EVO, G-550, Focus 550 or Focus+ 550,
pcpp: https://pcpartpicker.com/products/compare/TgW9TW,DPCwrH,bkp323,KmgzK8/

Focus and Focus+ are the newest PSU lines from Seasonic and they come with 10 years of OEM warranty. G and M12II EVO series PSUs come with 5 years of OEM warranty.
All my 3 PCs: Skylake, Haswell and AMD are also powered by Seasonic. Full specs with pics in my sig.

Also, do note that you can cheap out on every other component inside the PC except PSU. Since PSU powers everything, it is the most important component inside the PC. Also, while the PSU warranty covers the PSU itself and you can RMA the blown PSU, the PSU warranty doesn't cover any other component the PSU fried.

Most people learn the hard way not to cheap out on a PSU when low quality PSU blows and takes part of it or the whole system with it. Even entire houses have been burned down because of the fire low quality PSU caused when it blowed up.

Like it or not, if you want your PC to work for years to come without any risk of fire and/or damage to your components, you need to hand out some money for good quality PSU. I'm not talking that you need to go with the best PSU available, e.g Seasonic PRIME Titanium which costs $150+. Seasonic M12II-520 EVO i linked above costs $55 and is more than enough for your PC, both wattage and build quality wise.