Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: ATI HD 3870 sufficient PSU?

10 Jun 2010   #1

windows 7 Ultimate 32bit & 64bit
ATI HD 3870 sufficient PSU?

Hey guys i'm fixing a relative's pc, (gateway desktop) the video card went on it, I have a spare card laying around ati hd 3870, the system req. is a 450watt psu, but the one in the pc is only 300watt, they dont play 3d games on it, mostly movies and other desktop application, do you think i can still use it without blowing the computer?


Gateway Support - Specifications

My System SpecsSystem Spec

10 Jun 2010   #2

Windows 7 Pro X64 SP1

I don't know if you need to worry about "blowing the computer", but the 300W PSU may not have enough capacity.

The 3870 uses a 6 pin PCI-E auxiliary power connector, so it can consume up to 150W in principle. A quick check online suggests that it actually uses more than 120W.

You may be able to use a lesser PSU, as long as it's a good one, like: - CORSAIR CMPSU-400CX 400W ATX12V V2.2 80 PLUS Certified Compatible with Core i7 Power Supply

(Corsair 400W, 30A on its single +12V rail.)

Free is good, but you (or your relative) might be better served by dropping a modest sum on a newer low-end card rather than trying to use an old high-end one. (There are Radeon 5XXX series cards for less than $50, which support DX11, pointless though that may be.)
My System SpecsSystem Spec
10 Jun 2010   #3

windows 7 Ultimate 32bit & 64bit

hm, ok thanks for the info! money is a factor, but i didnt realize psu are that cheap now. i will let them know, thanks again.
My System SpecsSystem Spec


 ATI HD 3870 sufficient PSU?

Thread Tools

Similar help and support threads for2: ATI HD 3870 sufficient PSU?
Thread Forum
Not sufficient privileges help? Chillout Room
Is my security set-up sufficient ? System Security
Need help with default outputs on ATI 3870 X2 Graphic Cards
Windows 7, ATI 3870 X2 and cloning the monitor. HOW!@?? Graphic Cards
Dual ATI Radeon 3870 w/ 3 monitors Graphic Cards
Hd 3870 Graphic Cards
ATI Cross Fire 3870 HD resolution issues Graphic Cards

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 07:25 AM.
Twitter Facebook Google+

Windows 7 Forums

Seven Forums Android App Seven Forums IOS App

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33