585w Draw on 660w PSU

Soldato
Joined
25 Nov 2009
Posts
5,392
Time for an upgrade now I've gone back to an AMD GPU it appears my ancient 660w Seasonic x-series isn't cutting the mustard.
Seeing peaks of 585w in game and that's with only the card OCd, problem is I want to try and turn the CPU up a bit but I have no headroom on this PSU.

What can you recommend?
 
The CPU feels strong in everything except The Division 2 where I'm struggling to maintain 75fps @1440
GPU usage around 40%. I have stable CPU OC profiles for 4.4Ghz and 5Ghz which should give a good jump over 3.3Ghz but as soon as I apply a CPU OC it blue screens and fails to boot.
But yeah, Ryzen 3000x sounds like an option.
3930k @3.3Ghz water block
Rampage IV Extreme and water blocks.
2x8Gb Dominator Platinum @2133Mhz
Vega 56 Sapphire Pulse 1700/950 and undervolted.
6x SSD and 2x mech drives.
EK D5 and 12x120mm fans and a fan controller.
 
Then you are fine. Your power supply is capable of SUPPLYING 660w. At 660w output to your hardware, your PSU would have to pull over 700w to do so. So you'll have much more overhead left in your PSU than you realise.

Is there another reason I can no longer boot on previously known stable OC profiles then?
I have both 4.4 and 5.0Ghz profiles saved in my bios, both of them now fail to get into windows... I was kinda hoping a new power supply would free up some CPU speed?
 
The PSU iirc predates this build, so yes, getting on for a decade maybe...
I think the best course of action would be a quality ~ 800w PSU in the short term, see if that helps the stability. Even if it doesn't, it won't necessarily be money wasted as in the medium term (6-12 months maybe) I should perhaps look at a new main board...
Although if I can get more than 3.3Ghz out of this 3930k I'm sure it'll still hold its own.
 
Yeah I'd happily go for another Seasonic. I guess the question is... If a 3.3Ghz 3930k is pulling nearly 600w then how much more power will it require to run a decent overclock? I dare say there's another 100w to go on top?
 
Yeah fair point... PSU can stay then! I'll maybe look into the CPU overclocks and fiddle with the voltages a little. Could equally be chip/motherboard degradation.

You make a good point though, if the PSU couldn't sustain the power draw, it'd shut down as opposed to bluescreening?
 
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