can 450w psu handle gtx 960?

Aug 3, 2018
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I will buy a 2nd gtx 960 2gb soon and I've read on the Geforce website about gtx 960, they said that it requires 400w psu
And I have a psu FSP HYN Series HYN450ATX 450w or 400w with 80% efficiency I don't really know much about psu and I don't know can this psu handle the gtx 960? or do I need to upgrade my psu as well? Pls help me with this problem and sorry for any grammar mistake 🙁
 
Solution
First, let's clear a couple things up,
GPU manufacturer power supply recommendations consider three things: Power draw of the GPU, power draw of other high end components in the system, and a low quality power supply that cannot deliver it's rated voltage. It's possible your system only needs a good 350w PSU. Full system specs would be helpful.

A 450W PSU at 80% efficiency means it can deliver 450W while drawing ~560W from the wall (450 / .9). PSU ratings relate to the PSU's output/delivery capabilities, not input. Also, a PSU may have 80% efficiency at 50% load, but at full load it's efficiency would be lower. Or perhaps you were confused on what power FSP rated it at, so was I.

About your PSU. From the specs we can see it uses...
First, let's clear a couple things up,
GPU manufacturer power supply recommendations consider three things: Power draw of the GPU, power draw of other high end components in the system, and a low quality power supply that cannot deliver it's rated voltage. It's possible your system only needs a good 350w PSU. Full system specs would be helpful.

A 450W PSU at 80% efficiency means it can deliver 450W while drawing ~560W from the wall (450 / .9). PSU ratings relate to the PSU's output/delivery capabilities, not input. Also, a PSU may have 80% efficiency at 50% load, but at full load it's efficiency would be lower. Or perhaps you were confused on what power FSP rated it at, so was I.

About your PSU. From the specs we can see it uses a sleeve bearing fan, so life span is limited to a few years. It lacks OTP (Over-Temperature-Protection), but includes OCP, OVP, SCP and OPP. It includes APFC which can be an indication the PSU isn't complete crap. FSP names it a 450, yet it's rated output power in peak is just 400w. Continuously, the PSU may only deliver 300 - 350W. Near 100% of the PSUs output capability is on the 12V rail, which is nice to see. It is usually an indication it uses DC-DC converters on the secondary side.
The unit has 1 PCIe 6+2-pin connector.
It is marketed for office/multimedia computers.

Considering a typical GTX 960 system would use ~150w while gaming, using this reference, your PSU should be okay.

What do you mean by a "2nd gtx 960"? Will you use them in SLI? Did one already die on you?
 
Solution

oh sorry I meant it's a second hand gtx 960