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Do i need more wattage?

E

EvoFreak

Limp Gawd
Joined
Jun 9, 2006
Messages
179
I really appologize if this has been asked to death but Im having a confusion with my silverstone SX500LG. The PSU that came with my SG08 died so I needed another PSU. When reading up I read on reviews and forums that SX500lg is enough to power my following rig.

-2500k CPU oced to 4.2 ghz
-Asus strix 980 oced to +150 on GPU core and +350 on my MEM
-BX100 SSD
-Maelstorm 120k AIO water cool CPU cooler

I notice that when I play FC4, I would get a black frozen screen after 30 mins of gameplay. If I go back to stock clock on either of my CPU or GPU I would be able to play no lockups. It only allows me to have one oc'ed at a time to not lock up or if i oced both i would get a lockups, sometimes artifacts on the screen.

Is this the symptoms of not enough juice on my PSU?
 
no....as you found out it pulls much more power overclocked....only so much a 500w supply can handle. iirc seems like thats what the black screen issue is common with.
 
primetime said:
no....as you found out it pulls much more power overclocked....only so much a 500w supply can handle. iirc seems like thats what the black screen issue is common with.
Click to expand...

No? You mean issue isnt on psu? Where else could it be?
 
Kemerd said:
You could probably give the CPU and GPU some more headroom in terms of wattage-- I'd say an 600+ or so power supply would probably do the trick better. Black screen doesn't mean PSU failure though-- that's your overclock. If the PSU fails then the entire machine just shuts off. :p
Click to expand...

Maybe my gpu oc. Ive had the cpu overclock settings since i build it 4 years ago. Tested with 24 hours of prime95. A
 
ok.....i reread your op and honestly "artifacts on the screen" lol ....yea back off the gpu overclock bud....look if your getting artifacts on your screen whats the point? keep droping the gpu clock back down till your artifact free and let us know if it stabilized lol:) Now with that being said raising the gpu voltage with asus gpu tweak should allow you to get more headroom in so cases
 
Artifacts are from an over, overclocked GPU and/or failing GPU. Back down on the GPU OC and/or do something about it's cooling solution if you wanna OC it that high.
 
Go for a 650 gold. 500 is slightly too little for a heavily overclocked rig.
 
From the original post the issue is from the overclocking not the PSU.

I wasnt sure what put in my new build regarding the size of PSU. There is great detail on techpowerup site regarding the PSUs. Worth going for best quality parts (power caps in particular) and over provisioning so it is not operating at a high % of max load. My old Seasonic went bang! and i was quite surprised to see there are no internal fuses or protection - it took out the whole circuit in the house! Not getting one of those again. In that PC i put a BeQuiet 650W as a replacement which seems to be a lovely piece of kit.

Read techpowerup and look for a PSU which has very good regulation under their tests. Corsair seems to lead the field here. I opted for the HXi series in my new build. This comes with a USB link that lets you run some (awful) software to see the load on the PSU. I think it is an analog PSU with digital measurement. The top of the range is fully digital regulation.

I have loads of HDDs and a few PCIe cards so I decided to go for a big PSU - HX850i. When I look at the measurements the PC is using only 120W idle and less than 200W on 100% CPU. The fan never comes on with this PSU :) Definitely overspec'd!! 500 or 650W would have been fine. If you are concerned about making sure the PSU is coping then having the digital link is useful to check.
 
Update: Been playing around with the problem and i guess you guys are right! Psu in not the problem. Its the combination of the FarCry 4 bugs and my GPU overclocking. My GPU overclock is very stable with other games i play except FC4. I can run Heaven Benchmark for 5 hours not a single lock up but for some reason FC4 don't like my OC even I go 60% less of my stable OC. I had to run stock settings for FC4 not to lockup. Reading forums about FC4 seams im not alone with this issue.
 
yep sounds about right. People get the idea what ever overclock is good in a few games is good in all....but like you found out in NOT the case...kinda cool with the new amd drivers we can finally set different games to different speeds to adjust for these things now:)
 
Definitely should back off the GPU overclock a little. 500 watts should be enough but if you want to push everything to the limits you should definitely get atleast a 600 watt PSU.
 
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