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#1 |
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Member
Join Date: Aug 2002
Location: Abbotsford VIC
Posts: 296
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Got a 850W Toughpower in the Ivy Bridge rig in my sig. Looking to swap out the two 580's and put in two 7970's. Heard they need a fair bit of juice tho.
Reckon I need to upgrade the PSU too?
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Rampage III Formula | 980X @4.18 | 24GB Corsair 1600 | 2x GTX780 | Adaptec 5805 | 8x 1.5TB 10TB RAID5 | Heatkiller | PA120.3 | Vertex 3 120 Max IOPS |
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#2 |
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Member
Join Date: Jun 2011
Location: Gold Coast
Posts: 181
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I've seen a few people run 2 7970s on Corsair AX850. Now I don't know how AX850 compares with Thermaltake PSU though.
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DESKTOP: i7 4970K | Corsair H110 | EVGA 780 SC ACX | Asus ROG Hero VII| 16GB Vengeance 2400 | Corsair 750D | AX860 | Crucial SSD 512gb + 128gb | 2x 3TB Seagate 7200RPM | Filco "Ninja" | Razer Deathadder V2 | Dell U2711 LAPTOP: P170EM | i7 3630QM | 8GB | 128GB SSD | 750GB HDD | 7970m |
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#3 |
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Member
Join Date: Jun 2006
Location: ADL/SA The Monopoly State
Posts: 17,191
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I'm pretty sure you're going to end up using LESS power than your old cards <:
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D90/70-200mm2.8/35mm1.8/SB900 Watercooled Tt Urban S31/X79-UP4/i7 3930K/64GB RipjawsZ/SLI GTX 670/Intel SSDs/38TB FlexRAID |
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#4 |
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Member
Join Date: Jul 2004
Posts: 124
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I did exactly what you are asking, I had 2x 580 overclocked in SLI an I got 2x 7970ghz instead on a corsair tx850 and they draw slightly less power.
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#5 |
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Member
Join Date: Aug 2002
Location: Abbotsford VIC
Posts: 296
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Boom! That's what I wanted to hear, thanks heaps guys
__________________
Rampage III Formula | 980X @4.18 | 24GB Corsair 1600 | 2x GTX780 | Adaptec 5805 | 8x 1.5TB 10TB RAID5 | Heatkiller | PA120.3 | Vertex 3 120 Max IOPS |
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#6 |
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Member
Join Date: Feb 2008
Location: Benching
Posts: 4,163
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I am running two 7970 Lightnings @ 1200mhz on a 5 year old Zalman 850w
you'll be fine
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#7 |
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Member
Join Date: Jun 2013
Posts: 9
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Will run like a dream!
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#8 |
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Member
Join Date: Jul 2003
Location: Brisbane, QLD
Posts: 81
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I'm running a Haswell i7-4770 and 2x 7970s on a 760AX no worries
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PC: Intel i7-4770 | 32GB G.Skill Ripjaw 2133 | ASRock Z87 Extreme 6 | HIS-HD7970 3GB + MSI HD7970 3GB | Samsung 840 Pro 250GB (Boot) | Sandisk Extreme 480GB (Cache + Games) + WD 2TB Black | 11TB Random HDD Storage | LG Bluray Burner | Corsair AX760 | Silverstone Raven 03 | 1 x 24" Dell U2412 Monitor, 2x Samsung S24A850DW [Logitech 'G' Owners Club Member #66] |
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