Does GPU OC'ing require a lot more power from the PSU?

Riplet · 04-07-2009, 07:40 PM

Hey there, my current rig has quite low end PSU and GPU which I do not yet plan to replace, though obviously I eventually will.
I have an EzCool silent cooling REAL 300W PSU, which is pretty much enough for my E5200 2.5Ghz and my Inno3D 9400GT 512mb at clock speeds.
(2gb CEON ddr2 800mhz)

My main question is, if I overclock my 9400GT only, will it raise my PSU's power usage up to a dangerous amount?
If not, around how much should I overclock my card?

Please refrain from throwing suggestions of replacing the crappy PSU and GPU I currently own, I am fully aware of my low-end parts and at the moment I want to push what I can from my GPU.

Thanks in advance.

Mcninjaguy · 04-07-2009, 07:50 PM

don't overclock the GPU if you don't want to replace the PSU

you should be running a 550w PSU anyways
like a corsair 550w

with a PCI-E card you should have at least 26a on the 12v line to account for capacitor aging

dai · 04-08-2009, 02:06 AM

EzCool
a recipe for disaster especially trying to o/c plus being under powered for normal running in the first place

**linderman** · 04-11-2009, 06:30 PM

DONT overclock anything ................. youre lucky the rig is running! I was using 300 watt power supplies back in the P3 days

oldjoe · 04-14-2009, 12:33 PM

A "quality" 300W PSU would be sufficient for the E5200 but not anywhere near enough for anything other than onboard graphics.

04-07-2009, 07:40 PM	#1 (permalink)
Riplet Registered User Join Date: Mar 2009 Posts: 3 OS: WinXP SP3	Does GPU OC'ing require a lot more power from the PSU? Hey there, my current rig has quite low end PSU and GPU which I do not yet plan to replace, though obviously I eventually will. I have an EzCool silent cooling REAL 300W PSU, which is pretty much enough for my E5200 2.5Ghz and my Inno3D 9400GT 512mb at clock speeds. (2gb CEON ddr2 800mhz) My main question is, if I overclock my 9400GT only, will it raise my PSU's power usage up to a dangerous amount? If not, around how much should I overclock my card? Please refrain from throwing suggestions of replacing the crappy PSU and GPU I currently own, I am fully aware of my low-end parts and at the moment I want to push what I can from my GPU. Thanks in advance.

04-07-2009, 07:50 PM	#2 (permalink)
Mcninjaguy Temporarily Banned Join Date: Jun 2008 Location: Ottawa, Ontario, Canada Posts: 10,422 OS: Windows 7 Ultimate 64bit My System Blog Entries: 1	Re: Does GPU OC'ing require a lot more power from the PSU? don't overclock the GPU if you don't want to replace the PSU you should be running a 550w PSU anyways like a corsair 550w with a PCI-E card you should have at least 26a on the 12v line to account for capacitor aging Last edited by Mcninjaguy; 04-07-2009 at 07:52 PM.

04-08-2009, 02:06 AM	#3 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,539 OS: win 7 32x 64x rtm	Re: Does GPU OC'ing require a lot more power from the PSU? EzCool a recipe for disaster especially trying to o/c plus being under powered for normal running in the first place __________________

04-11-2009, 06:30 PM	#4 (permalink)
linderman Moderator, Hardware Team Join Date: May 2005 Posts: 20,432 OS: win 2000 pro / Win XP pro My System	Re: Does GPU OC'ing require a lot more power from the PSU? DONT overclock anything ................. youre lucky the rig is running! I was using 300 watt power supplies back in the P3 days __________________ I still know nothing and I respect that fact, striving to improve and, along the way, help anyone that comes from the place that I used to be! Power Supply Selection LEARN TO BACK-UP YOUR DATA FREE & EASY YouTube - Runtime Software DriveImage XML tutorial

04-14-2009, 12:33 PM	#5 (permalink)
oldjoe Registered User Join Date: Apr 2009 Location: Illinois Posts: 276 OS: XP Pro My System	Re: Does GPU OC'ing require a lot more power from the PSU? A "quality" 300W PSU would be sufficient for the E5200 but not anywhere near enough for anything other than onboard graphics.