Go Back   Hardware Canucks > PC BUILDERS & TWEAKERS CORNER > New Builds

LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old December 22, 2011, 02:34 PM
Trial Member
Join Date: Dec 2011
Posts: 1
Default new PSU and possibly GPU

current specs:
i5 760
4gb DDR3 ram
gigabyte p55a-ud3

I'm looking for a new PSU since my current HX520W has been making some weird noises and I need more power for future expansion. I've narrowed it down to the Corsair AX750 since that'll give me plenty of power for when I get Crossfire but I've noticed that the AX850 is cheaper. Should I get that instead? I wouldn't be wasting power or anything right?
Reply With Quote
  #2 (permalink)  
Old December 22, 2011, 04:45 PM
KaptCrunch's Avatar
Hall Of Fame
Join Date: Feb 2008
Location: Ontario
Posts: 3,792

old is only 18A not enough for dual cards

80 Plus Gold fits the bill for dual cards
Active Power Factor Correction (PFC) with PF value of 99%

but 750 is min for a bare system, i'd shoot for 850-950 but 1k for big gpu's

Last edited by KaptCrunch; December 22, 2011 at 04:53 PM.
Reply With Quote
  #3 (permalink)  
Old December 22, 2011, 05:10 PM
le2key's Avatar
Top Prospect
Join Date: Oct 2010
Location: BC
Posts: 115

doesn't amd have an option for power consumption like NCP? I would think that it should. also really depends what kind of cards you're going to be crossfiring for mid range cards like 6950 a 750w is plenty but going higher tier like 6970 obviously you're gonna need more especially when you're gonna oc. for high end cards you're gonna need 1k+ of wattage. so for future proof's sake get the 850w, especially if it's cheaper.
Reply With Quote
  #4 (permalink)  
Old December 22, 2011, 05:34 PM
Top Prospect
Join Date: May 2010
Location: GTA
Posts: 199

check this one .you will like it
Newegg.ca - XFX PRO850W XXX Edition Semi-Modular 80 Plus Silver Certified 850 Watt Active PFC Power Supply
Reply With Quote
  #5 (permalink)  
Old December 22, 2011, 05:56 PM
Join Date: Oct 2007
Location: Toronto
Posts: 26

I'd go with the AX850 as well since its cheaper than the 750 for whatever reason.
Reply With Quote
  #6 (permalink)  
Old December 22, 2011, 09:11 PM
NI3 NI3 is offline
Top Prospect
Join Date: Jun 2010
Posts: 245

You only pull from the wall what your components need.

You will be pulling the same from the wall with your 550 as you are with the 750, or 850. However, the efficient the PSU is may affect that but it is negligible.
Reply With Quote

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
PSU possibly fried DanielG27 Power Supplies 8 February 23, 2011 05:15 PM
Help With Possibly Jumping Onto i7 DunF88 New Builds 25 August 23, 2009 12:59 PM
Possibly Rebuild lcdguy New Builds 6 March 25, 2009 06:45 AM
Possibly the Best Keyboard Ever? Infiniti Peripherals 27 December 30, 2008 02:31 AM
WTB- WC'ing reservoir and possibly other stuffs Cardboard box with DSL Buy/Sell & Trade 5 March 26, 2008 05:25 PM