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Old 01-11-2005, 02:26 PM   #1 (permalink)
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Question PSU question

what rails and voltage are reasonable for a PSU? I'm buying a xaser V for my new comp and it comes with PSU, and recently saw someone mention that for 12v 20amps is good, that sounds a bit high to me, here is a pick of PSU stats:

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Old 01-11-2005, 02:40 PM   #2 (permalink)
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ugh, i now feel somewhat ripped off, i went back to newegg, even though everything is already ordered, and discovered that the case i am buying comes with a 420w psu for $59 more than the one without, and that thermaltake sells a 480w silent purepower through newegg for $56.50! what should i do? I have everything from original package, but it was a relative who ordered me the case thru their credit card. is there any way i can return the case and ask newegg to give me credit so i can get the 480w and case seperately? or will it really not be worth the trouble?

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Old 01-11-2005, 02:49 PM   #3 (permalink)
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oh btw the specs are

athlon 64 3500+
geforce 6800gt
corsair 1gb
120gb hd
cdrw/dvd drive
cordless mouse/keyboard
vga cooler
asus mb
soundblaster audigy 2
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Old 01-11-2005, 02:55 PM   #4 (permalink)
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I think newegg only exchanges parts, no refunds or credits, but you could by all means try and contact them and work something out.

Anyways, for your system, I'd reccomend bare minimums at:

400 watt
12v @ 18 amps
5v @ 30 amps

However, I will say your system will do much better under a 450 watt or greater power supply, with 24 amps on the 12v rail, and 40 amps on the 5v rail.
Intel C2D E6320 / AMD Athlon X2 3800+
Gigabyte 965P DS3 / DFI nF4 Ultra-D
2GB OCZ Gold PC2-6400 / 2GB OCZ Gold PC4000
eVGA 8800GTS 320MB / eVGA 6800GS 256MB
150GB Raptor / 74GB Raptor
2x500GB / 320GB
OCZ GameXStreme 850w / OCZ StealthXStream 600w
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Old 01-11-2005, 03:08 PM   #5 (permalink)
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My Aspire 520 Watt PSU reads 35 Amps on the 12+ rail. Never had problems with it yet. I recently owned and got rid of a PSU claimed to be 450 Watts but the Amprage on the 12+ rail was only 15 Amps. I don't know much about PSU's but I do know that that thing was incapable of running and sustaining power to this small system.

Intel P4 1.6Ghz
1 GB Generic PC3200
1 Segate 60GB HD
2 Optical Drives
GeForce FX 5200 128 MB
SB Live
2 80mm Fans
1 Light

From calculations, I should have needed only a minimum of 300 Watts, and yet the claimed 450 Watt PSU could not keep up with it. Anyways long story short, I wouldn't recommend using the PSU that comes with the case if your running a higher end system. Sometimes they work, sometimes they don't. All I know is when I pulled that PSU out of the case and replaced it with a newer, more expensive one, the new one must have weighted at least 5 pounds more. They must put all that stuff in there for a reason.
ASUS P8Z68 Deluxe
Intel Core i7 2600k
16GB DDR3 G-Skill Ripjaws
1TB 7200 Segagte Drive
eVGA GeForce 570
Samsung Blu-Ray Drive
Antec 850 Watt PSU
Windows 7 Professional
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Old 01-11-2005, 04:58 PM   #6 (permalink)
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:sigh: i dunno, anyone else have any ideas?

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