Hi,
I am planning a new PC with AMD PII 965, 4GB DDR3, single 5770 1GB, 1TB 7200.12 HDD and a DVD RW. How big the PSU should be?
I am a bit confused by recommendations and review result. In Tom's review, (http://www.tomshardware.com/reviews/radeon-hd-5770,2446-15.html) full load power consumption is only 207W, so a 400W PSU should be enough. but "Power Requirements and Specs For Popular Graphic Cards Guide " in this forum says
" Recommended is a 450 watt PSU with one 75 watt 6 pin PCI Express connector, but could be run on a quality 400 watt PSU. 600 watt with two 6 pin connectors will be needed for crossfire.
Recommended 37 Amps on 12 volt rail for single card and 50 Amps for crossfire. This card can run on lesser this is just recommended and will be able to run with at least 30 Amps on 12 volt rail. "
37 Amps on 12 volt translates to 444W, but 5770 max load power is 108W by specification which should be less than 10A on 12V. I am really confused
Any clarification is highly appreciated
I am planning a new PC with AMD PII 965, 4GB DDR3, single 5770 1GB, 1TB 7200.12 HDD and a DVD RW. How big the PSU should be?
I am a bit confused by recommendations and review result. In Tom's review, (http://www.tomshardware.com/reviews/radeon-hd-5770,2446-15.html) full load power consumption is only 207W, so a 400W PSU should be enough. but "Power Requirements and Specs For Popular Graphic Cards Guide " in this forum says
" Recommended is a 450 watt PSU with one 75 watt 6 pin PCI Express connector, but could be run on a quality 400 watt PSU. 600 watt with two 6 pin connectors will be needed for crossfire.
Recommended 37 Amps on 12 volt rail for single card and 50 Amps for crossfire. This card can run on lesser this is just recommended and will be able to run with at least 30 Amps on 12 volt rail. "
37 Amps on 12 volt translates to 444W, but 5770 max load power is 108W by specification which should be less than 10A on 12V. I am really confused
Any clarification is highly appreciated