Does useing a to powerfull power supply...

Daytrader · 29 Jul 2015 at 00:19

Does useing a to powerfull power supply do any harm to a build, or make it run not so good, spec below, power supply i am thinking of getting is EVGA Super NOVA 850W PC Power Supply - Gold, because i may want to sli or get a 980 in the future, and also sli that, so question i am really asking is, will getting a higher watt power supply than i need now do any harm to performance in any way, thankyou.

i7 4790K
GTX 970
1 x ssd
1 or 2 hdd's
16gig 2400hz ram
asus hero vii motherboard

BattFink · 29 Jul 2015 at 00:30

Don't think there is such a thing as a too powerful power supply

The components will only draw what it needs, if anything an over spec'ed power supply is a good thing (except for your wallet) as it won't stress it that much (may run quieter if it's got a load related cooling fan)

lee32uk · 29 Jul 2015 at 02:26

It will run slightly less efficient, but it won't do any harm.

FloppyPoppy · 29 Jul 2015 at 08:17

Just runs less efficient however with 980sli you are pushing into the headroom of that PSU.

Daytrader · 29 Jul 2015 at 10:41

lee32uk said:
It will run slightly less efficient, but it won't do any harm.

So i wont loose any performance because of power supply running less efficient then ? cheers

Daytrader · 29 Jul 2015 at 10:42

harry5522 said:
Just runs less efficient however with 980sli you are pushing into the headroom of that PSU.

2 x gtx 970 or 1 x 980ti would be ok thou ? cheers

Daytrader · 29 Jul 2015 at 10:44

BattFink said:
Don't think there is such a thing as a too powerful power supply

The components will only draw what it needs, if anything an over spec'ed power supply is a good thing (except for your wallet) as it won't stress it that much (may run quieter if it's got a load related cooling fan)

Thx

FloppyPoppy · 29 Jul 2015 at 10:45

I have run two 970s on a 850w before. One 980 would be fine but you will be better off waiting for nvidias next launches

The 980 is a pretty pointless but now with the 980tis

But yeah the next launch will be q1-2 next year and likely faster and more power efficient.

Daytrader · 29 Jul 2015 at 10:52

harry5522 said:
I have run two 970s on a 850w before. One 980 would be fine but you will be better off waiting for nvidias next launches

The 980 is a pretty pointless but now with the 980tis

But yeah the next launch will be q1-2 next year and likely faster and more power efficient.

Well i dont think i can wait until next year, my gtx 570 is struggling :eek:

had over 5 years so got money's worth out of it.

FloppyPoppy · 29 Jul 2015 at 12:33

Daytrader said:
Well i dont think i can wait until next year, my gtx 570 is struggling had over 5 years so got money's worth out of it.

Ah,

Well if you buy now really you should be getting a 970 or 980ti

980ti is close to being the same performance of 2 970s without the sli issues.

lee32uk · 29 Jul 2015 at 13:17

Daytrader said:
So i wont loose any performance because of power supply running less efficient then ? cheers

No you won't lose any performance.

lee32uk · 29 Jul 2015 at 13:18

Daytrader said:
2 x gtx 970 or 1 x 980ti would be ok thou ? cheers

Yes you will be fine even for SLI 980 ti with the EVGA G2 850W.

xentropa · 29 Jul 2015 at 17:06

Short answer:No.

A PC will only take as much power as it needs from a PSU.

Daytrader · 29 Jul 2015 at 17:19

Thx guys, so you think this evga 850watts a good choice ?

Borealis · 29 Jul 2015 at 22:12

The EVGA G2 850W is a rock-solid unit. I'm using a 750W version of it with my system and I've been very impressed so far.

Daytrader · 9 Aug 2015 at 10:47

Cheers, i bought the 850w in the end, lovely piece of kit.