Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > Could i squeeze a 4850 outa my PSU?

Could i squeeze a 4850 outa my PSU?

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - Could i squeeze a 4850 outa my PSU?

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courtney4   06-20-2008 at 05:06:00 PM

Hey guys, I was wondering if my PSU could handle a new graphics card.

My PSU stats are as follows:
DC output = 450W
+3.3V == 22.0A
+5V == 15A
+12V1 == 18A
+12V2 == 18A
+5Vsb == 2.5A

At the moment my machine is running:
intel Q6600
gigabyte Ga-p35 mobo
4 sticks of 1Gig RAM
A DVD ROM and DW rw drive
two 7200rpm sata hard drives
ATI radeon x1900xt
PC TV card
Wireless network card

Do you reckon one of those new ati 4850 cards would be able to fit into my system and replace the x1900xt? if not, what about a 8800gt?

Thanks

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psymanproductions   06-20-2008 at 05:37:47 PM
- 0 +

it will work, you sould be able to get away with a hd4870 or slightly higher power card as long as you have a good brand psu and dont intend to push the clocks up much.

Reply to psymanproductions
royalcrown   06-20-2008 at 06:00:42 PM
- 0 +

A 4850 won't fit in a psu...so TECHNICALLY...no...hehe

------------------------------ E8500,GA-EP45-UD3R, 8 GIG MUSHKIN, XFX 4890 , ASUS 22", WD 640 X 2, CM 532, CM 650TX
 Reply to royalcrown
MrCommunistGen   06-20-2008 at 06:04:54 PM
- 0 +

What brand is it?

-mcg

Reply to MrCommunistGen
ainarssems   06-20-2008 at 07:14:55 PM
- 0 +

If it runs 1900xt then it will run 4850

Reply to ainarssems
Bronze CPUs badge WR2   06-20-2008 at 08:14:30 PM
- 0 +

The 1900XT uses about 110W for the 512MB model (and 100W for the 256MB model).
4850 should run near 115W at load (150+W for the 4870). Good chance your PSU can handle that 4850 load. Worth a try before shopping for a new PSU.
for the 4870 it might be a good idea to take power off one HDD and one optical drive while you do the initial testing - then add them back in later.
You're that close on power requirements. [:wr2:5]

Reply to WR2
Mondoman   06-20-2008 at 10:43:36 PM
- 1 +

You need to tell us what the maximum wattage of all the +12V rails *combined* is; on some PS's, the total +12V amperage available from two 18A +12V rails like yours might only be 20A or 22A; on other (better) ones, it'll be above 30A.

------------------------------ e2160@3GHz: OCing my way to Ubuntuland!
 Reply to Mondoman
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