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new PSU + 4850 = slow boot

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Last response: in Components
November 11, 2008 7:51:25 PM

hey guys
i have an hp a3108f3p power supply in my ibm thinkcentre m51 (8143).
i just bought a radeon hd4850 so i need to upgrade the power supply to 450 w or greater.
my chipset is intel 915g

a computer guy recommended the Silent ATX2POW450HS. it's $86 and i'm not too sure if it's the right one.

i measured the dimensions, and the maximum WxDxH appears to be ~6in x ~6in x ~4.5in

are there cheaper alternatives? how can i check to see if it will work with everything?

EDIT: see my post at the bottom. bought a new PSU and installed both PSU and 4850, and now it's very, very slow to boot. sometimes it boots but then when i shutdown and try again it stops at a blank screen after the logo.


More about : psu 4850 slow boot

November 11, 2008 8:02:59 PM

Don't skimp on your PS, its a primary piece of equipment required for your computer. StarTech is decent brand.

Look here for more options:

Does your motherboard use a 20 or 24pin main connector? Make sure that the PS you buy has the size you need. Most come with a 20+4 adapter, but be sure.

The only requirements is that it would be ATX (matching your motherboard and case) assuming your parts are ATX.
November 11, 2008 8:07:27 PM

how do i check if my motherboard and parts and case are ATX?

and my mobo has a 24pin main connector, it was the biggest one and i counted 24 holes in the connector :p 
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November 11, 2008 8:09:10 PM

Most motherboards are ATX or mATX (ATX works with mATX), but do you know what model motherboard you have?

If not, it not a big deal, but just a typical way to be sure.
November 11, 2008 8:17:18 PM

I would just assume a typical ATX PS is fine.
November 11, 2008 8:30:46 PM

hey, i installed hwinfo and all it says for motherboard model is IBM IBM.
motherboard chipset is intel 915g + ICH6
computer model is 8143vkn... and i don't know how to check manually, but i'd be happy to try
November 11, 2008 8:39:11 PM

A great power supply, it performs about exactly the same as the great Corsair 650TX 650w power supply. The only real difference is the Antec looks like crap and is MUCH cheaper, few people would care about a power supplies looks anyway and you would need a side window to see a difference.
November 11, 2008 8:39:49 PM

Wow, serpent beat me to it by 1 second... lol. Also don't worry, the Antec Earthwatt 650w has been about that price for awhile and will be for awhile.
November 11, 2008 9:02:22 PM

Good and low price aren't words you should be using about power supplies. The Antec 650 recommended is a GREAT buy, and a good foundation to replace the rest of your 4+ year old computer...
November 12, 2008 7:52:13 PM

ok i went out and bought a 520W PSU for $75, and installed that and the radeon 4850. i installed the drivers, but now windows xp is taking AGES to boot up (it gets past the logo, shows the mouse on a black screen). when rebooting for the driver installation i got a BSOD, something about pci.. i forgot ><

maybe it's overheating? it runs really hot...

any ideas?
November 13, 2008 7:05:55 PM

November 13, 2008 8:42:43 PM

Did you make sure to plug the 6-pin PCI-e power connector to the matching receptacle on the HD4850 card?
November 13, 2008 10:28:56 PM

yeah... the PSU had two 6 pin PCI connectors so i just plugged one into the hd4850
November 14, 2008 12:58:43 PM

and now CoD4 is really really laggy... 21-50 FPS and i said 'optimal system settings' :S
November 15, 2008 12:10:42 AM