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Old power supply and new gpu

post #1 of 6
Thread Starter 
I have a seasonic m12 from about years ago rated 700w it was made for sli and crossfire but I notice that it doesn't have any 8 pins how would I go about powering a 7970 matrix
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Precious 2.0
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My precious
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R7 1700 @ 3.9 | 1.35v Asus VI Crosshair Hero EVGA Titan X Hybrid 1514/2000 32GB Gskill DDR4 3200 TridentZ 
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Dell 2407WHFP-HC and Crossover 27Q LED-P Deck Legend tactile frost Seasonic 700watt M12 Coolmaster Haf 932 
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post #2 of 6
Quote:
Originally Posted by mistax View Post

I have a seasonic m12 from about years ago rated 700w it was made for sli and crossfire but I notice that it doesn't have any 8 pins how would I go about powering a 7970 matrix

The Matrix should come with Molex to 8 pin connectors
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Aloha Oe
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post #3 of 6
Thread Starter 
It only comes with one doesn't it
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Precious 2.0
(15 items)
 
My precious
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CPUMotherboardGraphicsRAM
R7 1700 @ 3.9 | 1.35v Asus VI Crosshair Hero EVGA Titan X Hybrid 1514/2000 32GB Gskill DDR4 3200 TridentZ 
Hard DriveOptical DriveCoolingOS
Samsung 840PRO 256GB LG 10x Blu-ray Burner Swiftech H220-X Window 8.1 Professional 64Bit 
MonitorMonitorKeyboardPower
Crossover 27inch Acer XB270HU 144Hz G-Sync Deck Legend tactile frost EVGA G2 750W 
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Coolmaster Haf 932 DeathAddder 3.5 Black edition Titanium HD | O2 DAC + AMP 
CPUMotherboardGraphicsRAM
Intel i7-970 @ 4.2 Asus Rampage Formula III Asus DC2 R9 290X @ 1110 24GB of Samsung DDR3 @ 1866 
Hard DriveOptical DriveCoolingOS
Samsung 840PRO 256GB | 2x Samsung F4 2TB | WD 6... LG 10x Blu-ray Burner H70 with 2x GT2150 Window 8.1 Professional 64Bit 
MonitorKeyboardPowerCase
Dell 2407WHFP-HC and Crossover 27Q LED-P Deck Legend tactile frost Seasonic 700watt M12 Coolmaster Haf 932 
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DeathAddder 3.5 Black edition TeamLiquid Goliathus Titanium HD AudioEngine A2 and ATH-700D 
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post #4 of 6
Quote:
Originally Posted by mistax View Post

It only comes with one doesn't it

Most GPU's come with two IIRC
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Qualcomm Snapdragon S4 Dual Core Nokia  Adreno 225 1024mb 
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Aloha Oe
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QT
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2x RAID0 128gb SSD's 1 TB Storage Drive WD My Pasport LG Slim Portable Blu-Ray Multi 
OSMonitorKeyboardCase
Windows H8 LG Flattron 24EA53V Ducky 9008G2 MSI GS70 UltraSlim Case 
MouseMouse PadAudioAudio
Mad Catz R.A.T TE Razer Vespula Creative Soundblaster 2x Mids and a Sub (built in) Creative Gigaworks T40 
Audio
Blue Yeti 
CPUMotherboardGraphicsRAM
Qualcomm Snapdragon S4 Dual Core Nokia  Adreno 225 1024mb 
Hard DriveOSMonitorCase
32 GB Solid State Windows Phone 8.1 4.5 inch Ammoled @ 768x1280 Trident Aegis (red)  
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post #5 of 6
The 7970 matrix comes with one(1) dual 6-pin PCI-E power cable to 8-pin PCI-E adapter. Look on the first page of this [http://www.legitreviews.com/article/2068/2/] review.

You will have to get this cable ( http://www.amazon.com/CableHero-PCI-Express-Adapter-Converter-Gaming/dp/B0032MT0OU ) in order to provide power from your power supply to the 7970. Or buy two(2) of these ( http://www.amazon.com/Dual-Molex-To-8-PIN-Adapter/dp/B002CTXNMY/ref=pd_sxp_redirect )for your 7970.
Edited by Captain1337 - 11/18/12 at 3:54pm
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post #6 of 6
my PSU is FAR older then yours (seasonic S12 600w) and pushes a 7970 just fine. your GPU should have came with adapters for the 8pin PCIe power. mine did (sapphire HD7970OC)
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