Tom's Hardware > Forum > CPU & Components > Other Components > What size power supply should i use
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edweird13   02-05-2003 at 09:55:11 PM

I was wondering what power supply i should use for my system. Here's What i have:

Soyo SY-P4S-645DX DRAGON Ultra mother board
P4 2.4Ghz CPU
1Gb DDR333 Ram
2 Seagate 20GB Baracuda ATA4 7200 rpm hard drives
1 Seagate 80GB Baracuda ATA4 7200 rpm hard drive
1 Western Digital 120GB 7200 rpm hard drive
1 Maxtor 30GB 5400 rpm hard drive
1 Maxtor 20GB 5400 rpm hard drive
1 LiteOn 16X DVD-ROM
1 Samsung 40X-24X-40X CDRW
GEFORCE 3 64MB DDR AGP CARD
Sigma USB 2.0 PCI card

I was thinking of the TRUE430 Power Supply. Will this be enough??

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4ryan6   02-07-2003 at 01:59:46 AM
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You've got to have some cooling fans too? With all those hardrives, the True Power 550 may be the safest option for you, or maybe the 480, personally I wouldn't take any chances and go with the 550.



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ejsmith2   02-07-2003 at 04:52:42 AM
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I agree.

Get the most expensive one you can find.

"I personally think filesystems should be rewritten from scratch every 5 years..." --- Hans Reiser

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Civilized   02-07-2003 at 02:38:09 PM
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My suggestion would be a quality power supply that supplies plenty of power to the 12V rail, since high performance harddrives do pull about 2 amps a piece off of this rail. Enermax power supplies by far supply the most 12V power over other power supplies....My suggestion is to go with an Enermax AX465-VE (466 watts))....here are the power supply specifications:

3.3V 38A
+5V 44A
+12V 33A

compared to the antec true power 550
3.3V 32A
+5V 40A
+12V 24A

Both of these are great power supplies but I personally opt for the Enermax :smile:

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upec   02-07-2003 at 04:18:55 PM
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I would also recommend a Enermax AX465-VE.

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svol   02-07-2003 at 07:20:04 PM
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A little sidenote: I don't know if you plan to use the Seagate Barracuda IV drives in RAID 0 but I don't recommend it... their performance under RAID 0 is very poor, you will need to contact Seagate for special RAID 0 versions of those HDs if you want to use them in RAID 0 at maximum performance and already bought them.

Anyway I recommend atleast a 450W PSU with high 5V and 12V amperage.

My dual-PSU PC is so powerfull that the neighbourhood dimms when I turn it on :eek:

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sbolinger2   02-07-2003 at 08:11:32 PM
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Your main concern should be the 12V rail. If you consider each hdd requiring 2A on the 12V line plus that cpu is rated at 8.5A at 12V plus the dvd and CDRW drives; Make sure you PS has a 12V rating of at least 24A. The overall wattage rating should probably be around 450W. Here is a <A HREF="http://firingsquad.gamers.com/guides/power_supply/default.asp" target="_new">link</A> to a guide for power supplies at firingsquad. Good luck.

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edweird13   02-08-2003 at 08:40:41 AM
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thanks for the advice but i've been there done that i'm not currently using a raid 0 for that reason i had a array crash on me i tried to stripe them again and they would not do it they worked fine as single drives since gotten two fireball 3 drives from maxtor wont know how they are untill i get my new power supp thanx for the advice everyone

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