Appropriate PSU for new rig?

HaGa11aZ · 10-25-2006, 02:48 AM

What should be the recommended PSU watts for my new rig:

ECS KN1 Lite s939 mobo (no SLI; one 16x PCI-E)
Athlon 64 3400+ Venice 2.2GHz
XFX GeForce 7900GT
2 gigs of DDR 400 RAM
POSSIBLY a Raptor, but for now, a 120 GB SATA 150 Barracuda
M-Audio Audiophile 192 (for my digital audio workstation)
Case w/ three 120mm and one 80mm fans

I will be overclocking as well.

I also need to find a PSU that has extra fan power connectors on it, since my mobo doesn't have enough.

O, btw, I believe i'm running a 330W Enermax at the moment w/ my current system

ETSA · 10-25-2006, 04:47 AM

500 watt with a dual rail should be more than adequate....

PC eye · 10-25-2006, 05:11 AM

An Antec True Power II 480w supply would drop right in there and handle the work load. I can later add the TP II 550w when a SATA array is added to the current build with two 250gb ide hard drives. When going to use a dual railed supply the extra third power plug for drives can serve to power an extra 120mm fan.

The board here has an auxillery 12v molex socket on the board itself used for the fourth fan which is also a 120mm sized fan used with another on the side cover.

ETSA · 10-25-2006, 05:15 AM

Excellent PSU^

HaGa11aZ · 10-25-2006, 05:36 AM

how about between these two?

http://www.newegg.com/Product/Produc...82E16817159040

http://www.newegg.com/Product/Produc...82E16817374001

HaGa11aZ · 10-25-2006, 06:25 AM

k, so i just found out the system requirements of the GPU that i wanna get says, "A minimum 400W system power supply (with 12V current rating of 26A)"

well the fact that i'll get at least a 400W is a no-brainer, but i'm having a little trouble nailing down the "12V current rating of 26A" part. 12V seems pretty universally standardized among all the PSU on newegg, but what is this 26A? (does that mean 26 amps?) And do they mean current rating by input or output?

Will either of these PSUs be sufficient for 26A?

http://www.newegg.com/Product/Produc...82E16817194003

http://www.newegg.com/Product/Produc...82E16817159040

PC eye · 10-25-2006, 09:40 AM

CoolMax and the other one are on the "BAD" while Enermax was gamer's choice for a number of years.

**ceewi1** · 10-25-2006, 10:29 AM

Could we narrow this down to some sort of budget?

The Enermax is OK, but +12V@32A isn't great for a $100+ PSU.

Quote:

i'm having a little trouble nailing down the "12V current rating of 26A" part. 12V seems pretty universally standardized among all the PSU on newegg, but what is this 26A? (does that mean 26 amps?) And do they mean current rating by input or output?

This referrs to the maximum output current of the +12V rail. 26A does indeed mean 26 amps. For Dual Rail PSUs, this is slightly more difficult to calculate. Summing the output of the two +12V rails is often used as a rough guide, but is rarely accurate. To get a valid measurement, take a look at the label on the PSU (e.g. http://www.newegg.com/Product/ShowIm...ly+%2D+Retail). Notice that 18A is written under +12V1 and +12V2. Below that is written 420W, which is the total power output on the +12V rails. To figure out the total output current, just divide that by 12. The Coolmax mentioned, for example, has a total of +12V@(420/12=35A).

PC eye · 10-25-2006, 11:15 AM

Actually the only accurate means of measuring output gets a little involved by measuing current levels when you have a load placed on the supply itself. That gets into more theory there rather then comparing brands. I would say going from $55 to $110 gives some idea of a budget there i think?

leetkyle · 10-25-2006, 04:02 PM

Sounds like a job for the Hiper Type-R 580W Modular or any Seasonic

The Hiper is pretty silent (I use one) and has great performance, but Seasonic is right up there as they make astonishingly powerful and quite supplies.

10-25-2006, 02:48 AM	#1 (permalink)
HaGa11aZ Bronze Member Join Date: Oct 2006 Posts: 54	Appropriate PSU for new rig? What should be the recommended PSU watts for my new rig: ECS KN1 Lite s939 mobo (no SLI; one 16x PCI-E) Athlon 64 3400+ Venice 2.2GHz XFX GeForce 7900GT 2 gigs of DDR 400 RAM POSSIBLY a Raptor, but for now, a 120 GB SATA 150 Barracuda M-Audio Audiophile 192 (for my digital audio workstation) Case w/ three 120mm and one 80mm fans I will be overclocking as well. I also need to find a PSU that has extra fan power connectors on it, since my mobo doesn't have enough. O, btw, I believe i'm running a 330W Enermax at the moment w/ my current system __________________ ECS KN1 Lite nForce 4 Ultra s 939 Athlon 64 3400+ @ 2.2 gHz XFX GeForce 7900 GT 1 GB Corsair XMS RAM 120 GB SATA 1.5 Gb/s Barracuda M-Audio Audiophile 192 DAC Last edited by HaGa11aZ; 10-25-2006 at 03:05 AM.

10-25-2006, 04:47 AM	#2 (permalink)
ETSA Diamond Member Join Date: Jan 2006 Location: WA Age: 24 Posts: 2,283	500 watt with a dual rail should be more than adequate.... __________________ DESKTOP Antec P180B(4 x 120mm Tricool fans) Antec 500W neoHE Gigabyte GA 965p DS3 E6400 /w Zalman cnps9500 led 92mm (OC'ed to 3.2Ghz) 4 GB Corsair xms2 DDR2 800 HD4850 512mb ddr3 /w Zalman VF1000 (OC'ed to 690/1143) Soundblaster Audigy 4 LAPTOP Core 2 Duo T5750(2.00GHz)/4GB ddr2 667/250GB HD/8600M GT

10-25-2006, 05:15 AM	#4 (permalink)
ETSA Diamond Member Join Date: Jan 2006 Location: WA Age: 24 Posts: 2,283	Excellent PSU^ __________________ DESKTOP Antec P180B(4 x 120mm Tricool fans) Antec 500W neoHE Gigabyte GA 965p DS3 E6400 /w Zalman cnps9500 led 92mm (OC'ed to 3.2Ghz) 4 GB Corsair xms2 DDR2 800 HD4850 512mb ddr3 /w Zalman VF1000 (OC'ed to 690/1143) Soundblaster Audigy 4 LAPTOP Core 2 Duo T5750(2.00GHz)/4GB ddr2 667/250GB HD/8600M GT

10-25-2006, 05:36 AM	#5 (permalink)
HaGa11aZ Bronze Member Join Date: Oct 2006 Posts: 54	how about between these two? http://www.newegg.com/Product/Produc...82E16817159040 http://www.newegg.com/Product/Produc...82E16817374001 __________________ ECS KN1 Lite nForce 4 Ultra s 939 Athlon 64 3400+ @ 2.2 gHz XFX GeForce 7900 GT 1 GB Corsair XMS RAM 120 GB SATA 1.5 Gb/s Barracuda M-Audio Audiophile 192 DAC

10-25-2006, 06:25 AM	#6 (permalink)
HaGa11aZ Bronze Member Join Date: Oct 2006 Posts: 54	k, so i just found out the system requirements of the GPU that i wanna get says, "A minimum 400W system power supply (with 12V current rating of 26A)" well the fact that i'll get at least a 400W is a no-brainer, but i'm having a little trouble nailing down the "12V current rating of 26A" part. 12V seems pretty universally standardized among all the PSU on newegg, but what is this 26A? (does that mean 26 amps?) And do they mean current rating by input or output? Will either of these PSUs be sufficient for 26A? http://www.newegg.com/Product/Produc...82E16817194003 http://www.newegg.com/Product/Produc...82E16817159040 __________________ ECS KN1 Lite nForce 4 Ultra s 939 Athlon 64 3400+ @ 2.2 gHz XFX GeForce 7900 GT 1 GB Corsair XMS RAM 120 GB SATA 1.5 Gb/s Barracuda M-Audio Audiophile 192 DAC Last edited by HaGa11aZ; 10-25-2006 at 08:57 AM.

10-25-2006, 05:11 AM	#3 (permalink)
PC eye Diamond Member Join Date: Apr 2006 Location: Inside a pc Posts: 19,728	An Antec True Power II 480w supply would drop right in there and handle the work load. I can later add the TP II 550w when a SATA array is added to the current build with two 250gb ide hard drives. When going to use a dual railed supply the extra third power plug for drives can serve to power an extra 120mm fan. The board here has an auxillery 12v molex socket on the board itself used for the fourth fan which is also a 120mm sized fan used with another on the side cover.

10-25-2006, 09:40 AM	#7 (permalink)
PC eye Diamond Member Join Date: Apr 2006 Location: Inside a pc Posts: 19,728	CoolMax and the other one are on the "BAD" while Enermax was gamer's choice for a number of years.

10-25-2006, 11:15 AM	#9 (permalink)
PC eye Diamond Member Join Date: Apr 2006 Location: Inside a pc Posts: 19,728	Actually the only accurate means of measuring output gets a little involved by measuing current levels when you have a load placed on the supply itself. That gets into more theory there rather then comparing brands. I would say going from $55 to $110 gives some idea of a budget there i think?

10-25-2006, 04:02 PM	#10 (permalink)
leetkyle Platinum Member Join Date: Aug 2006 Location: Northern Ireland Age: 17 Posts: 587	Sounds like a job for the Hiper Type-R 580W Modular or any Seasonic The Hiper is pretty silent (I use one) and has great performance, but Seasonic is right up there as they make astonishingly powerful and quite supplies. __________________ Intel Core 2 Duo E6400 @ 2.13Ghz \| Asus P5W "Digital Home" Deluxe \| 2GB Corsair XMS2 PC2-6400 800MHz 5-5-5-12-T1 \| Hiper Type-R 580W Blue \| 74.3GB Western Digital Raptor 10000RPM 8MB Cache \| 300GB Samsung 7200RPM 16MB Cache \| DVD+/-RW Dual Layer 18x18 \| LG CD-R/DVD-ROM Drive \| Antec P180 \| X1900XT 512MB Slave Edition w/ Arctic Accellero \| Creative Audigy 2 ZS 17" Dell TFT 1280x1024 \| 17" Sony TFT 1280x1024 \| Saitek Rumble Cyborg 3D Joystick \| Creative T5100 5.1 Speakers

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