770/280x on a 550W PSU?

[IceVip]

Till now i have had a 7870 overclocked and a 8320 at 4.8ghz
Both stable, but i had a power surge that a monitor caused and it killed my 7870.
I'll be replacing it with one of these cards, both have identical TDP and i've read that
the PSU should be able to handle those gpu's but i never read someone saying it will
with a overclocked Vishera.
So.. anyone?
P.S The PSU is > http://www.fsplifestyle.com/product.php?LID=1&PSN=380

 

[n3cw4rr10r]

That is plenty of power for either one. The minimum is 500w.

 

[dwatterworth]

You'll be able to run pretty much any graphics card without issue on that power supply with your CPU. Recommended PSU figures from manufacturers take into account junk OEM models which often cannot support their listed power figures.

 

[IceVip]

That is plenty of power for either one. The minimum is 500w.

Are you absolutely sure because i've seen reviews of the gigabyte 770 and
the total system power consumption is 400W, with an i5.. which is like 1/3 of
an overclocked Vishera.

 

[n3cw4rr10r]

Oops I take it back. Thats pushing it. You are going to need 650w just to be safe. I just noticed your overclock.

 

[dodostarforce]

I would say it is enough as well but if you don't feel is will be you can always upgrade to 600/650w

 

[dwatterworth]

Check out this article:

overclocked 3960X, 280X, AIO liquid cooler, ~350w power draw on full load gaming. You'll be fine.

http://www.overclock3d.net/articles/power_supply/how_many_watts_do_you_actually_need/1

 

[n3cw4rr10r]

No way. fX8320 @ 1.5V 4.8ghz will use ~ 250w by itself.

 

[IceVip]

Check out this article:

overclocked 3960X, 280X, AIO liquid cooler, ~350w power draw on full load gaming. You'll be fine.

http://www.overclock3d.net/articles/power_supply/how_many_watts_do_you_actually_need/1

No way. fX8320 @ 1.5V 4.8ghz will use ~ 250w by itself.

Thats what I'm saying, all these reviews n stuff with 780 TI's and 290x's are with i5, even if they were with i7, they cannot be compared to a 4.8ghz vishera, i need someone with personal experience to confirm this, otherwise
ill just go with the gtx 760 and overclock it.

 

[dwatterworth]

Heres an anand article with a 4.8ghz 8350 running total system power (without GPU) at just under 300W. So if you were artificially loading your proposed GPU and CPU to 100% on both, you'd just hit your 500-550 watt figure.
Unless you are doing heavy rendering on GPU and CPU or just running benches all day every day, that PSU will run it.

http://www.anandtech.com/show/6396/the-vishera-review-amd-fx8350-fx8320-fx6300-and-fx4300-tested/8

 

[IceVip]

Heres an anand article with a 4.8ghz 8350 running total system power (without GPU) at just under 300W. So if you were artificially loading your proposed GPU and CPU to 100% on both, you'd just hit your 500-550 watt figure.
Unless you are doing heavy rendering on GPU and CPU or just running benches all day every day, that PSU will run it.

http://www.anandtech.com/show/6396/the-vishera-review-amd-fx8350-fx8320-fx6300-and-fx4300-tested/8

Usually what i do is prime95 and gpu-z's stress for 99% load on the gpu so that i can max em both out
and see if something goes wrong, i had a 400W psu before this one and the problem was when i maxed
both components' usages, the monitor started doing that weird snow effect on tv's with no signal,
I do render things sometimes but i dont think i can manage to get both cpu and gpu to 99% without knowing.
Only way i see it is doing it on purpose, or if i start rendering and launch a game, even then the Peak of this
psu is like 507W, atleast from what i've read. Whats the worst case scenario if the psu's limit (507w peak) is passed?

 

[dwatterworth]

You can damage components, usually starting with the PSU if you're pulling more power than it is rated for, which is when additional damage happens to the total system during the PSU's failure.

So if you're loading it up fully regularly, then you'll want the 600W unit that was recommended or a higher efficiency 500W-550W unit. Normal gaming loads though, you'd never see that sort of draw.

 

[IceVip]

What if i just drop down the cpu oc to 4.6ghz, vcore in bios is at +1.00v, but at 4.6 i can make it 0.50v and its still perfectly stable.
Don't know how much that will affect the watt draw tho, i'm not into the power consumption stuff.

 

[n3cw4rr10r]

Bottom line is that psu delivers 42A on the 12 v rail, that is 504v. You will be pushing the psu. Ask yourself is it worth taking that chance.

 

[IceVip]

Bottom line is that psu delivers 42A on the 12 v rail, that is 504v. You will be pushing the psu. Ask yourself is it worth taking that chance.

Ok so in this article http://www.anandtech.com/show/6396/the-vishera-review-amd-fx8350-fx8320-fx6300-and-fx4300-tested/8 The last picture shows 294W, Total system power consumption.
He used a 5870 in that test setup which has a TDP of 188, if you just switch that 5870 with
a gtx 770, i don't think it would make a lot of difference, the TDP of the whole system would be
420W-440W if ofc cpu and gpu are both at 99% usage. Which will probably never happen.