Bitcoin Forum
February 22, 2017, 04:15:28 AM *
News: Latest stable version of Bitcoin Core: 0.13.2  [Torrent]. (New!)
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: 1,000 Watt PSU for 3x 6970's?  (Read 2632 times)
digitzero
Newbie
*
Offline Offline

Activity: 9


View Profile
July 05, 2011, 09:30:59 PM
 #1

CPU: AMD Sempron 140
CASE: open (n/a)
HDD: 16 GB SSD
3x ATI 6970's (slight overclock)

Do you think I can reliably run 3 of these ATI's on a 1,000 Watt PSU?

Using Newegg's Power Supply Calculator, it says I would need 1168 Watts.  Hoping to get by with less, if possible.

Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1487736928
Hero Member
*
Offline Offline

Posts: 1487736928

View Profile Personal Message (Offline)

Ignore
1487736928
Reply with quote  #2

1487736928
Report to moderator
1487736928
Hero Member
*
Offline Offline

Posts: 1487736928

View Profile Personal Message (Offline)

Ignore
1487736928
Reply with quote  #2

1487736928
Report to moderator
1487736928
Hero Member
*
Offline Offline

Posts: 1487736928

View Profile Personal Message (Offline)

Ignore
1487736928
Reply with quote  #2

1487736928
Report to moderator
Jack of Diamonds
Sr. Member
****
Offline Offline

Activity: 252



View Profile
July 05, 2011, 09:47:50 PM
 #2

A 6970 consumes about 250 watts at full load. At most, your entire system would be consuming 800 watts.

The newegg calculator is being overly cautious.

1f3gHNoBodYw1LLs3ndY0UanYB1tC0lnsBec4USeYoU9AREaCH34PBeGgAR67fx
digitzero
Newbie
*
Offline Offline

Activity: 9


View Profile
July 05, 2011, 10:00:39 PM
 #3

Thanks!  As for overclocking, any idea on how much that would bump it up from the 800 W level?
Jack of Diamonds
Sr. Member
****
Offline Offline

Activity: 252



View Profile
July 06, 2011, 02:55:00 AM
 #4

Add 50-75W overhead for every card if OC'ing significantly.
So around 950 watts max for the entire system

1f3gHNoBodYw1LLs3ndY0UanYB1tC0lnsBec4USeYoU9AREaCH34PBeGgAR67fx
organofcorti
Donator
Legendary
*
Offline Offline

Activity: 1960


Poor impulse control.


View Profile WWW
July 11, 2011, 03:04:44 AM
 #5

I have a set up similar to yours, except with 1x6990 and 1x6970 and I use an 850Watt PSU. I ran both OC'd for a while, not problem with power. Way too much heat and noise to run OC'd for long though.

Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
follow @oocBlog for new post notifications
Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!