can anyone here help me,
what is the minimum power do i need to run 2 x HD 5770?
how can i choose my psu?
thank you!
CrossFire HD 5770, how much power do i need?
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 Jun 22 2010, 02:33 AM, updated 16y ago
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#1
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Junior Member
10 posts Joined: Aug 2009 
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Hello,
can anyone here help me, what is the minimum power do i need to run 2 x HD 5770? how can i choose my psu? thank you! |
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Jun 22 2010, 02:37 AM
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#2
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Junior Member
439 posts Joined: Nov 2009  
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This link; provided by LowYat should be useful.
http://www.extreme.outervision.com/psucalculator.jsp This post has been edited by Agnaem: Jun 22 2010, 02:45 AM |
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Jun 22 2010, 07:39 AM
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#3
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VIP
2,510 posts Joined: Dec 2004 From: Penang Island and Bidor
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QUOTE(ReaLsHot @ Jun 22 2010, 02:33 AM) Hello, i believe a good 650w psu would docan anyone here help me, what is the minimum power do i need to run 2 x HD 5770? how can i choose my psu? thank you!  |
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Jun 23 2010, 12:17 AM
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#4
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Senior Member
2,109 posts Joined: May 2008 From: Ipoh/Semenyih
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Yea,650W real power should be ok...
Same as 2 HD4850.. |
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Jun 23 2010, 01:45 AM
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#5
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Junior Member
10 posts Joined: Aug 2009
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QUOTE(Agnaem @ Jun 22 2010, 02:37 AM) This link; provided by LowYat should be useful. This website is very good!http://www.extreme.outervision.com/psucalculator.jsp tQ Agnaem.. QUOTE(metsatsu @ Jun 22 2010, 07:39 AM) i believe a good 650w psu would do From the calculation above, i shud get minimum of 460W psu.but the recommended psu is above 500W. tQ metsatsu.. QUOTE(rxy @ Jun 23 2010, 12:17 AM) Yea,650W real power should be ok... tQ rxy..Same as 2 HD4850.. |
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Jun 23 2010, 02:06 AM
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#6
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Senior Member
8,686 posts Joined: Mar 2009
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always get a higher power psu to avoid the psu working at 100% full load la.
and the extra head room can be used for future upgrade.  |
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Jun 23 2010, 12:48 PM
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#7
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Junior Member
10 posts Joined: Aug 2009
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QUOTE(saturn85 @ Jun 23 2010, 02:06 AM) always get a higher power psu to avoid the psu working at 100% full load la. i want to buy Cooler Master Real Power Pro 750W.and the extra head room can be used for future upgrade. What do you think? Cooler Master is a good psu or not? |
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Jun 23 2010, 04:11 PM
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#8
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Senior Member
8,686 posts Joined: Mar 2009
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QUOTE(ReaLsHot @ Jun 23 2010, 12:48 PM) i want to buy Cooler Master Real Power Pro 750W. not sure about this model ler.What do you think? Cooler Master is a good psu or not? but here is the another model, Cooler Master Real Power Pro 850 W Power Supply Review: http://www.hardwaresecrets.com/article/Coo...pply-Review/538 |
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Aug 4 2010, 01:15 PM
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#9
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Newbie
4 posts Joined: Jan 2009 From: Putrajaya and Shah Alam
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i thing cooler master real power 750w can handle this...
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Aug 5 2010, 12:22 PM
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Senior Member
8,686 posts Joined: Mar 2009
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QUOTE(PaaN404040 @ Aug 4 2010, 01:15 PM) i thing cooler master real power 750w can handle this... got cheap sale in garage sales. http://forum.lowyat.net/topic/1449434 |
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Aug 7 2010, 12:21 AM
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Senior Member
1,401 posts Joined: Jan 2003 From: Gelugor, Penang.
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Can recommend the CM GX 650W PSU.
Has 80% Bronze Power Efficiency rating. Has (2+6pin) x2 power cable for power hungry graphic card. Price between RM350 - RM400. LINK |
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Aug 8 2010, 09:35 PM
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Senior Member
1,587 posts Joined: Jan 2003 From: Glenmarie, Shah Alam 
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On the box it says minimun req 500w psu for dual crossfire
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Aug 22 2010, 12:02 PM
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Junior Member
22 posts Joined: Jul 2009 From: Nasi Lemok Kg.Baru 
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500watt real is enough bro...but ur psu must have 80% efficiency
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Aug 22 2010, 06:41 PM
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Senior Member
8,686 posts Joined: Mar 2009
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yea, get a branded psu with at least 80% efficiency.
most 80+ certify psu should have at least 80% efficiency.   This post has been edited by saturn85: Aug 22 2010, 06:44 PM |
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Aug 23 2010, 01:35 AM
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VIP
2,510 posts Joined: Dec 2004 From: Penang Island and Bidor
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thread moved to hardware Q&A section
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Aug 23 2010, 01:46 AM
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Senior Member
8,525 posts Joined: Jan 2003 From: The Jungle Of Pahang
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I've tested with my rig, a good 600W 80+ PSU like my PSU is more than enuff for 5770 CF
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Aug 23 2010, 06:00 AM
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Senior Member
4,723 posts Joined: Apr 2008
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QUOTE(cloudwan @ Aug 23 2010, 01:46 AM) I've tested with my rig, a good 600W 80+ PSU like my PSU is more than enuff for 5770 CF I got mine running on 500W PSU, it works fine. |
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Aug 23 2010, 07:35 AM
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Senior Member
1,413 posts Joined: Aug 2009 From: Damansara
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if u get 650w 80+ gold certified,u can even CF 5870..
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Aug 23 2010, 09:14 AM
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Senior Member
15,022 posts Joined: Jan 2003 From: Damansara Jaya/Bandar Utama
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QUOTE(rxy @ Jun 23 2010, 12:17 AM) Yea,650W real power should be ok... No lar. 5770 use a lot less power than 4850. 500W True Power should be sufficient.Same as 2 HD4850.. |
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Aug 23 2010, 09:35 AM
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Senior Member
8,461 posts Joined: Mar 2007 From: Kota Bharu,Kelantan
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QUOTE(saturn85 @ Aug 22 2010, 05:41 PM) yea, get a branded psu with at least 80% efficiency. most 80+ certify psu should have at least 80% efficiency. QUOTE(angrysnail @ Aug 23 2010, 06:35 AM) if u get 650w 80+ gold certified,u can even CF 5870.. efficiency has nothing to do with this....  and to cf 2 hd5870,a 600w psu is enough.[ati recommends 600w only,and the y always recommend more than enough aka lots of headroom] |
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