PSU recommendation

[GeorgeKellow]

Hi guys. 

 

I currently have a EVGA GS 550W psu and I am looking to buy the MSI 1080TI. PC Part Picker has told me that I have 59w to spare, I'm not confident in that. I don't really have a set budget for a PSU but I want something modular a good quality.

 

My PPP link- https://uk.pcpartpicker.com/list/qXn3Ps 

[manikyath]

probably a nice time for an upgrade, if you'd go for a psu with matching cables (as in, another evga one) you can keep using your "£100 custom cables", and it'd make for an easier swap.

 

maybe an evga 750 watt model? so you have some nice headroom that makes the fan not have to spin up as much.

[porina]

If not extra overclocking I'd say you'll probably be fine with dropping in the 1080 Ti. PCPP might be over conservative in power requirements and it is unlikely you'll max everything at once. My crude estimation would be 250W for GPU, 100W for CPU, 100W for everything else. 450W total.

 

As example, I have run a 6700k + 980Ti system on a 450W PSU (while I was waiting for lower power 1070 to arrive). That might have been a bit tight but had no problems.

 

If you really want to upgrade, are there any future expansion possibilities that might need to be allowed for? I think I'd target at least 750W to allow SLI for example. I do like the Corsair HXi series as they actually report (via USB) the power in/out of the PSU, as well as what each rail is doing. Of course, that comes at a premium.

[GeorgeKellow]

1 minute ago, porina said:

If not extra overclocking I'd say you'll probably be fine with dropping in the 1080 Ti. PCPP might be over conservative in power requirements and it is unlikely you'll max everything at once. My crude estimation would be 250W for GPU, 100W for CPU, 100W for everything else. 450W total.

 

As example, I have run a 6700k + 980Ti system on a 450W PSU (while I was waiting for lower power 1070 to arrive). That might have been a bit tight but had no problems.

 

If you really want to upgrade, are there any future expansion possibilities that might need to be allowed for? I think I'd target at least 750W to allow SLI for example. I do like the Corsair HXi series as they actually report (via USB) the power in/out of the PSU, as well as what each rail is doing. Of course, that comes at a premium.

So should I risk it?

4 minutes ago, manikyath said:

probably a nice time for an upgrade, if you'd go for a psu with matching cables (as in, another evga one) you can keep using your "£100 custom cables", and it'd make for an easier swap.

 

maybe an evga 750 watt model? so you have some nice headroom that makes the fan not have to spin up as much.

Only problem is that the custom cables will only work with this 550w and the 650w

[porina]

Just now, GeorgeKellow said:

So should I risk it?

Do you have a power monitor? Cost around a tenner, tells you how much power something is taking out of the wall. That could give you an indication on how much power your current system takes, and by comparing models you can work out how much more the new GPU will bring it to. Note the power supplies are rated for how much they put out. They will take a bit more than that at the wall due to efficiency.

[GeorgeKellow]

Just now, porina said:

Do you have a power monitor? Cost around a tenner, tells you how much power something is taking out of the wall. That could give you an indication on how much power your current system takes, and by comparing models you can work out how much more the new GPU will bring it to. Note the power supplies are rated for how much they put out. They will take a bit more than that at the wall due to efficiency.

No I don't  

[WereCat]

That PSU is enough if you won't OC the GPU. If you stick to the default 100% power limit (280W) you'll be fine.

If you push the limit to 117% (327W just for the graphics card), 127% (355W) then it will be barely enough if at all.

If you use XOC BIOS then you will easily hit 400W+ on the graphics card alone.

[GeorgeKellow]

12 minutes ago, WereCat said:

That PSU is enough if you won't OC the GPU. If you stick to the default 100% power limit (280W) you'll be fine.

If you push the limit to 117% (327W just for the graphics card), 127% (355W) then it will be barely enough if at all.

If you use XOC BIOS then you will easily hit 400W+ on the graphics card alone.

I don't plan to overclock the gpu

[WereCat]

1 minute ago, GeorgeKellow said:

I don't plan to overclock the gpu

then you're fine

[alexhelvetica]

1 hour ago, manikyath said:

probably a nice time for an upgrade, if you'd go for a psu with matching cables (as in, another evga one) you can keep using your "£100 custom cables", and it'd make for an easier swap.

 

maybe an evga 750 watt model? so you have some nice headroom that makes the fan not have to spin up as much.

EVGA has a lot of custom cables. The GS cables will only work on other GS PSUs, and the GS series has been discontinued.

[manikyath]

10 minutes ago, Comic_Sans_MS said:

EVGA has a lot of custom cables. The GS cables will only work on other GS PSUs, and the GS series has been discontinued.

that sounds like an EVGA thing to do.

 

bummer i guess

[STRMfrmXMN]

6 hours ago, GeorgeKellow said:

Hi guys. 

 

I currently have a EVGA GS 550W psu and I am looking to buy the MSI 1080TI. PC Part Picker has told me that I have 59w to spare, I'm not confident in that. I don't really have a set budget for a PSU but I want something modular a good quality.

 

My PPP link- https://uk.pcpartpicker.com/list/qXn3Ps 

For a 4790K and 1080Ti you will have enough power. Think 300W for the 1080Ti and then another 150W for the CPU. Sure, that doesn't sound like a lot, but as long as you don't go crazy with OC you'll be fine.

http://www.tomshardware.com/reviews/core-i7-4790k-devils-canyon-overclock-performance,3845-9.html