HD 3850 Power Supply Specification

This may help, it shows actual power consumption of various cards http://www.atomicmpc.com.au/forums.asp?s=2&c=7&t=9354

AGP version, if that makes a diffrence

More important than total watts, is the 12v rating. You could easily run an HD3850 on an earthwatts 380W PSU because it's combined 12v is 27 amps. Look on the label and see what the combined +12 volt rails max is in amps or watts.

down the list on the chart on the back of the box it reads

+12V
15A
180W

Ouch, 15 amp 12v isn't going to cut it given a mild loaded system. How many drivers you have? What the CPU? I feel pretty safe to say You will need a new PSU.

Here is the 27 amp 12v Antec I mentioned for $30. It's quiet and a quality PSU made by Seasonic.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

P4 Prescott 3Ghz
P4P800 E Deluxe
X800 Vivo (currently)
1GB of Corsair 512MB DDR400 PC3200 XML or XMS
SATA 130Gb Maxtor HD
SATA 1000Gb (1TB) HD

For $30 that earthwatts is a steal, definately get it.

UK Customer here

This is that right?   http://www.ebuyer.com/product/120375

yeah, that is it, ouch. There may be cheaper ones for you.

Better than the £60 i was going to spend on one of the certified PSU's that they suggest on the website.

Seem to be lacking replys in my other thread  

http://www.tomshardware.co.uk/forum/249827-12-p4p800-de...

What about this powersupply will it work with this card??

Power Supply http://www.xbitlabs.com/articles/other/display/thermalt...

Card http://www.newegg.com/Product/Product.aspx?Item=N82E168...


I am thinking the same thing, and need help also

Just double checking http://www.ebuyer.com/product/120375 will work with my AGP card including all the other things i listed in my PC right?

Get a better power supply..

http://www.dabs.com/productview.aspx?Quicklinx=4ZWQ&Cat...

http://www.dabs.com/productview.aspx?Quicklinx=4N14&Cat...

Corsair would be my choice