Can a 280W PSU 80+ certified run a 750Ti and i5 3470.

[HagridPotterz]

I have a 750Ti, an i5 3470, a 500GB hard drive, 8GB of DDR3 1333MHz RAM. I really need to know if my 280W 80+ certified PSU can handle all of that.

 

[Lutfij]

I'm assuming you're dealing with a SFF form factor Dell OptiPlex, correct? Perhaps a SFF prebuilt. If so then please don't do that since an entire system with the GTX750Ti would need 350W of power at least.

 

[HagridPotterz]

No, I'm actually using a Lenovo thinkcentre. And will I really need a 350W PSU? I've heard that a 750Ti can run on 250w PSUs. And mine is an 80+ Bronze certified.

 

[turkey3_scratch]

I'm assuming you're dealing with a SFF form factor Dell OptiPlex, correct? Perhaps a SFF prebuilt. If so then please don't do that since an entire system with the GTX750Ti would need 350W of power at least.

Actually looking at HardOCP's review of the 750Ti here they have an overclocked 750Ti, a 4.6Ghz I7-3770K, and they measured 235W from the wall under full load overclocked. Since that's measured from the wall , and considering this PSU being used, I can assume 88% efficiency or 206W of power output. And that's with an older Intel CPU very heavily overclocked. A modern day system more realistically should be lower down, like at 175W or less under load with a 750Ti.

 

[HagridPotterz]

Hey turkey scratch, I've actually underclocked my i5 3470 to 2.9GHz instead of the stock 3.2GHz. Do you think that'll help a decent amount? I just want to be fairly safe with the 280W power supply, though I think it's a pretty decent one.

 

[turkey3_scratch]

Hey turkey scratch, I've actually underclocked my i5 3470 to 2.9GHz instead of the stock 3.2GHz. Do you think that'll help a decent amount? I just want to be fairly safe with the 280W power supply, though I think it's a pretty decent one.

Could you post an image of the power supply label?

 

[HagridPotterz]

It's a LiteOn 80+ Bronze certified 280W PSU.

 

[turkey3_scratch]

A label image would help since the model could be identified then.

 

[HagridPotterz]

ps-4281-02. That is the model number.

 

[Aniruddha_3]

Don't take the risk my brother just for a PSU u will loose ur whole system

 

[okcnaline]

I'm running a GTX 745 and a Haswell i7 off of it. Should be fine with a 750 Ti.

 

[HagridPotterz]

Yours is probably an i7 4790 right? Ok, anyways, thanks for the confirmation. Your GPU uses only 5 watts less than my 750Ti and your processor uses 84W while my i5 3470 uses somewhere around 65w (I underclocked it to 2.9GHz). Thanks for the help.

 

[okcnaline]

No, mine is a Xeon E3-1241 v3 and a Quadro K620. 😉

 

[HagridPotterz]

You are joking though right

 

[HagridPotterz]

No, mine is a Xeon E3-1241 v3 and a Quadro K620. 😉

You are joking though right

Hey guys, my apologies for reviving this fairly old thread, but I found an insane deal on a GTX 950. $20 for it, I just can't pass up on it, it's a great deal, and I know that 950 is quite a bit better than the 750Ti that I currently have. Now, this 950 requires one 6 pin connector and it uses a bit more power than the 750Ti. I simply want to know if my PSU can handle it well enough. The PSU is handling the 750Ti flawlessly, so I suspect it will run the 950 pretty well, but I wanted to ask you guys before I buy the 950.

 

[okcnaline]

You are joking though right

No. You want proof? PM me.

Hey guys, my apologies for reviving this fairly old thread, but I found an insane deal on a GTX 950. $20 for it, I just can't pass up on it, it's a great deal, and I know that 950 is quite a bit better than the 750Ti that I currently have. Now, this 950 requires one 6 pin connector and it uses a bit more power than the 750Ti. I simply want to know if my PSU can handle it well enough. The PSU is handling the 750Ti flawlessly, so I suspect it will run the 950 pretty well, but I wanted to ask you guys before I buy the 950.

The Lite-On PUS does not have 6-pin VGA header so no.

 

[Sagar_20]

No, I'm actually using a Lenovo thinkcentre. And will I really need a 350W PSU? I've heard that a 750Ti can run on 250w PSU's. And mine is an 80+ Bronze certified.

Not 250 but it can definitely run on a 280 W system. My pc has similar configuration as you have except for the 250 W Dell psu, but i chose a GT 730 over the 750 Ti to avoid running into power issues.. Although 300 is the minimum requirement for the GT 730 gpu but it runs just fine on my 250W system, and has never given me a problem (bsod, restarts, etc). So i believe 280 is enough to handle that 65 W gpu (Gtx 750 Ti). Or you can simply remove the DVD drive from your pc to save 20-25 W.

 

[okcnaline]

Not 250 but it can definitely run on a 280 W system. My pc has similar configuration as you have except for the 250 W Dell psu, but i chose a GT 730 over the 750 Ti to avoid running into power issues.. Although 300 is the minimum requirement for the GT 730 gpu but it runs just fine on my 250W system, and has never given me a problem (bsod, restarts, etc). So i believe 280 is enough to handle that 65 W gpu (Gtx 750 Ti). Or you can simply remove the DVD drive from your pc to save 20-25 W.

Actually no. The 950 OP is considering requires a 6-pin connector which the Lite-On proprietary lack.

 

[HagridPotterz]

Well that's unfortunate. I'd have to buy a new PSU in order to use the 950. Not sure if I should.

 

[okcnaline]

If you purchase a new PSU you'll also need a 24-pin to 14-pin converter.

 

[DSzymborski]

Despite the pin converter annoyance, purchasing a new PSU does have the positive side effect of not having a Lite-On PSU.

 

[HagridPotterz]

If you purchase a new PSU you'll also need a 24-pin to 14-pin converter.

Why is that?

 

[HagridPotterz]

Despite the pin converter annoyance, purchasing a new PSU does have the positive side effect of not having a Lite-On PSU.

I was under the assumption that LiteOn PSUs were decent. Anyways, will I really need the pin converter? And why?

 

[turkey3_scratch]

I don't recall them being bad. They're only made for servers not consumers.

 

[okcnaline]

I was under the assumption that LiteOn PSUs were decent. Anyways, will I really need the pin converter? And why?

They aren't decent, but they're passable for something unintensive like a Quadro K620. And your motherboard uses a 14-pin instead of a 24-pin motherboard plug.