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Need a bigger power supply?

Last response: in Components
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April 16, 2009 12:40:55 AM

I just built a computer and it started up at first but is not anymore. I recently over clocked my processor. It is an Intel I7 920. I have a Radeon 4870x2 video card, 2 sata hard drives, 1 sata dvdrw and the case has 5 fans, 1 cpu fan, and I guess 2 fans on the video card. The MOBO is a ASRock x58 Super computer. I didn't over clock much just to about 3.3ghz

It just died all of a sudden as if the power went out. When I start up it has trouble starting up all together doesn't even reach the post and restarts then it eventually gets there and I get 1 long beep and 8 short beeps which I think has something to do with the video card.

So I'm thinking I don't have enough power. I have a 610W power supply

Does that sound like what it is to anyone else? Also what size should I go for. I still have a scsi card I'm going to add but nothing beyond that probably.

Thanks

More about : bigger power supply

April 16, 2009 1:57:06 AM

610w? what psu are you using, sounds like the 610w isn't sending enough amps to your 4870x2 which is a power hungry card. Might need to look into a new psu.

4870x2 = 750tx/850tx.
April 16, 2009 3:44:02 AM

+1 FullMetall, A 4870 x 2 draws more power than you have. What brand is that PSU of yours?
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April 16, 2009 11:53:27 AM

Actually, the TX650 should be more than sufficient. Get the TX750 for headroom. Oh and what are the amps. on the 12v rails of your 610W?
April 16, 2009 12:20:31 PM

PC Power & Cooling S61EPS 610W is the brand i have
a c 243 ) Power supply
a b U Graphics card
April 16, 2009 1:09:48 PM

Run your components thru the Extreme Power Supply Calculator, it'll tell you that 550 watts is more than enough.
Run them thru the Corsair Power Supply Finder and it will tell you that thier HX620 is plenty.
Unless there's a problem with your PCP&C, it is certainly enough power for your system specs.
You said you think the post beeps indicate a video issue, any way of testing the video card in another system ?
April 16, 2009 1:26:22 PM

Yeah, PC Power & Cooling is a great brand and reliable.
April 16, 2009 1:41:57 PM

I found a power supply calculator that said I need 741w of power. I'm not sure but supposedly the 4870x2 uses 500w by itself. I'm thinking I need at least 750w. When my computer died it seemed like a power failure. I have no way of testing my video card in another system.

I guess I'll just get a bigger PSU and if I get the same problems I'll assume it is the video card and not the PSU.. I don't know what else to do.
April 16, 2009 1:47:00 PM

delluser1 said:
Run your components thru the Extreme Power Supply Calculator, it'll tell you that 550 watts is more than enough.
Run them thru the Corsair Power Supply Finder and it will tell you that thier HX620 is plenty.
Unless there's a problem with your PCP&C, it is certainly enough power for your system specs.
You said you think the post beeps indicate a video issue, any way of testing the video card in another system ?



OK i just ran it through the extreme power supply calculator and it says 836W power supply is needed. I think i'll go with a TX850

Anyone think this a bad idea?
a c 243 ) Power supply
a b U Graphics card
April 16, 2009 1:50:47 PM

b9er said:
OK i just ran it through the extreme power supply calculator and it says 836W power supply is needed. I think i'll go with a TX850

Anyone think this a bad idea?

What did you run thru the calculator ?

No, the 4870x2 doesn't need 500 watts by itself
http://www.xbitlabs.com/articles/video/display/radeon-h...
April 16, 2009 2:05:00 PM

actually nevermind I ran the extreme calc wrong.. I put quad socket thinking that meant quad cores.. but I guess single socket is all I need which is only 485W

I don't know what could be the problem though.. It seems like its a power issue.
a c 243 ) Power supply
a b U Graphics card
April 16, 2009 2:08:31 PM

It could very well be a psu issue, even the best quality units can fail.
Do you have access to a digital multimeter ? You could it use to check voltages when powering up.
April 16, 2009 3:46:25 PM

i honestly think its got to be a power issue because it just started happening when I over clocked the cpu. When I first had it running the psu was underclocked i guess auto mode for energy saving but the cpu was running a little less than 2ghz even though it's a stock 2.6ghz cpu.. Now that i manually set the cpu it's at 3.3ghz constant and all of a sudden I'm having issues with the system powering up
April 16, 2009 4:59:16 PM

Maybe it was too big an OC. Why not reset CMOS and see if it posts?
a c 243 ) Power supply
a b U Graphics card
April 16, 2009 5:08:33 PM

rags_20 said:
Maybe it was too big an OC. Why not reset CMOS and see if it posts?

Maybe just overclocking period.
Here's a line from the Toms review of the board;
"By now many readers are probably wondering where our BIOS screenshots are. We normally test our motherboard before taking any BIOS screenshots, and the X58 SuperComputer failed during our overclocking tests. A second board exhibited the same behavior, preventing us from including BIOS screens."

http://www.tomshardware.com/reviews/x58-motherboard-i7,...



a c 121 ) Power supply
a c 195 U Graphics card
April 16, 2009 5:20:28 PM

According to the THG chart on GPU power usage, the 4870X2 uses 22.4A under load.
April 16, 2009 5:30:42 PM

I increasingly feel that the PSU is not the culprit.
April 16, 2009 5:32:00 PM

its 1 big amp of 49a. on that 610w. So im not sure. Could be, or it could be something else.
April 16, 2009 5:42:23 PM

Well I cant get anywhere right now not even to reset the board. I think I might just try a new PSU and see if it fixes it.. if not I'm not sure what I'll do
April 16, 2009 7:20:06 PM

If your not able to get it to run, i'd say psu or motherboard.

ASRock is a cheapo brand made board that has had always bios problems, bios flashing, etc. So i don't know why you went with ASRock - the limb of an ASUS.
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