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Is my 800W power supply good enough?

Last response: in Components
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October 23, 2010 5:57:16 PM

Here is direct info on my system from invoice. System is 2 years old now. I never am running my DVD roms


USB BLACK MULTIMEDIA KEYBOARD
USB BLACK OPTICAL WHEEL MOUSE
500 GB SATA II 3.0 GB 16MB 7200RPM
1G DDR2 PC6400 MEMORY x 4
BLACK SONY 1.44MB FLOPPY DRIVE
KILLER K1 HIGH SPEED NETWORK CARD
EVGA NVIDIA 9800GTX+ 512MB PCI-E
EVGA NVIDIA 9800GTX+ 512MB PCI-E
BLACK SAMSUNG 20X DVDRW
BLACK 16X DVD ROM
APEVIA X-JUPITER FULL G/BLK/WINDOW - 4 fans, fan controls on front, and led
ASUS 780SLI P5N-T DELUXE MB
NZXT 800 WATT POWER SUPPLY SLI
AC97 ONBOARD SOUND
INTEL QUAD CORE Q9550 RETAIL
THERMALTAKE V1 GAMING CPU FAN

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October 23, 2010 5:59:47 PM

Is there some reason you think it wouldnt be good enough?

I believe that has 4 12volt rails.. not my favorite setup.. but provided its properly hooked up and load balanced correctly it should be fine.
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October 23, 2010 6:02:51 PM

rand_79 said:
Is there some reason you think it wouldnt be good enough?

I believe that has 4 12volt rails.. not my favorite setup.. but provided its properly hooked up and load balanced correctly it should be fine.


Does have 4 12 volt rails, correct. Just asked cause had some freeze problems on occasion. Checked numerous site calculators and out of the 10 i tried, i found 2 that said it might need more towards 850 to 900 of course assuming max load. (rest were mainly about 650 on avg). CyberpowerPC built it originally
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October 23, 2010 9:44:18 PM

If it was a chep unbranded PSU you would be more likely to have trouble.
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October 24, 2010 5:24:06 AM

Also, It may say 800 watts but thats MAX. It might not be continuous power so therefor its probably only running at 600 or so and Occasionally spikes at 800. I recommend Antec PSU or a nice corsair, just make sure its continuous and try to stay away from 4 rails unless you know how to set them all up correctly
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a b ) Power supply
October 24, 2010 6:47:04 AM

I would check the wiring of the PSU and make sure each GFX card has its own rail on the PCIe power connector and also make sure they do not share a rail with the motherboard. I think you should try some basic diagnostic tests first such as monitoring temperatures, check ram with memtest86+ and check hard drive with the manufacturers diagnostic utility. Also, if you have never cleaned the dust out of the computer and PSU during the time you have owned it, I suggest you do it. Dust getting caked on components can cause them to overheat in certain spots.
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a b ) Power supply
October 24, 2010 10:03:48 PM

its not an unknown brand psu...its NZXT as stated
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a b ) Power supply
October 25, 2010 3:05:17 AM

^ Yes, but NZXT dosen't exactly make the top of the line PSUs. If OP can afford it, he probably should look in to a quality SeaSonic, Corsair, PC Power & Cooling, Antec (non the Basiqs) or XFX.
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November 3, 2010 11:57:52 PM

Best answer selected by angry12345.
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a b ) Power supply
November 4, 2010 1:26:20 AM

This topic has been closed by Mousemonkey
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