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Please Help Gtx 670 x2

post #1 of 7
Thread Starter 
Hello everyone I have 2 gtx 670 ftw edition from evga what id like to do is to be able to overclock my cards and still be able to use sli ive made multiple attempts but all have failed
my specs are I7 3770k oc 4.2 Asus P8Z77-WS intel 240gb solid state hard drive 750W PSU 16gb gskill ram corsair H110 water cooling for cpu
Ive tried overclocking via msi after burner and evga precision X ive tried increasing gpu core in intervals of 10 by itself or mem clock same interval ive been benchmarking with heaven benchmark and if i change any settings not only does heaven crash afterburner and precision also crash please help sorry if this question has been answered in another thread i searched and didnt find anything definitively answering my question

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post #2 of 7
You are increasing the voltage to when you overclock right? If not this is why.
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First Rig
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Current Rig
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CPUMotherboardGraphicsRAM
Amd FX-8120 Asus M5A99FX Pro Sapphire Radeon 7950 Corsair Vengeance 1600 
Hard DriveCoolingCase
OCZ Vertex Custom Watercooling Nzxt Phantom 
CPUMotherboardGraphicsRAM
i7 4770k Asus Maximus VI Formula Sapphire Raedeon 7950 16GB Corsair Vengeance @1600Mhz 
Hard DriveHard DriveCoolingOS
OCZ Vertex II 120GB Seagate Barracuda 3TB Custom water cooling Windows 8.1 
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AOC 29" 21:9 EVGA NEX750G NXZT Phantom (modded) 
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post #3 of 7
Thread Starter 
Firstly thanks for taking the time to reply
I believe I did try increasing the voltage 1 time but not.by much at all maybe 1 tick increase using precision x and I still got the same result maybe I should increase it more ? Ive mainly stayed away from it as most info ive read said it was dangerous to mess with and id risk losing my card

Sent from my samsung galaxy note 2
post #4 of 7
Iwould try increasing it one or two notches more. Cards go bad when you increase the voltage extreme amounts not just a little bit. This will just make it not live quite as long but still most likely live a long time.
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CPUMotherboardGraphicsRAM
Amd FX-8120 Asus M5A99FX Pro Sapphire Radeon 7950 Corsair Vengeance 1600 
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OCZ Vertex Custom Watercooling Nzxt Phantom 
CPUMotherboardGraphicsRAM
i7 4770k Asus Maximus VI Formula Sapphire Raedeon 7950 16GB Corsair Vengeance @1600Mhz 
Hard DriveHard DriveCoolingOS
OCZ Vertex II 120GB Seagate Barracuda 3TB Custom water cooling Windows 8.1 
MonitorPowerCase
AOC 29" 21:9 EVGA NEX750G NXZT Phantom (modded) 
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First Rig
(7 items)
 
Current Rig
(11 items)
 
 
CPUMotherboardGraphicsRAM
Amd FX-8120 Asus M5A99FX Pro Sapphire Radeon 7950 Corsair Vengeance 1600 
Hard DriveCoolingCase
OCZ Vertex Custom Watercooling Nzxt Phantom 
CPUMotherboardGraphicsRAM
i7 4770k Asus Maximus VI Formula Sapphire Raedeon 7950 16GB Corsair Vengeance @1600Mhz 
Hard DriveHard DriveCoolingOS
OCZ Vertex II 120GB Seagate Barracuda 3TB Custom water cooling Windows 8.1 
MonitorPowerCase
AOC 29" 21:9 EVGA NEX750G NXZT Phantom (modded) 
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post #5 of 7
Thread Starter 
Alright ill give it a try in a couple hours and report back

Sent from my samsung galaxy note 2
post #6 of 7
Using the Evga PX crank up the voltage everytime you increase anything. You can max out the voltage but you will have to worry about heat!!
post #7 of 7
What drivers and what OS?

What does it say when it crashes?
 
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Play Server
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NAS
(10 items)
 
CPUMotherboardGraphicsRAM
Intel i7 3930k @4.8-5.2 Asus Rampage IV Black Edition 3x R9-290 Corsair Dominator Platinum 16GB @1866C9 
Hard DriveHard DriveHard DriveCooling
Intel 750 400GB 2x Samsung 840 EVO 500GB (1TB) SanDisk Ultra II 960GB EK Rampage IV BE Water Block 
CoolingCoolingCoolingCooling
2x Swiftech D5 w/ EK Dual Pump Top XSPC EX480, EX360 & 2x Phobya 1080 EK Supremacy EVO CPU Block EK Advanced 250mL Res 
CoolingCoolingCoolingOS
Copper Tubing w/ push fittings 3x EK-FC R9-290X Lamptron FC-5V2 Windows 10 Pro 
MonitorKeyboardPowerCase
Samsung U28D590D 4K Leopold Otaku Corsair AX1200i Silverstone TJ07, heavily modified 
MouseMouse PadAudioAudio
Corsair M65 Corsair MM600 Sennheiser HD595 / HD428 / HD280 Corsair SP2500 
CPUCPUMotherboardRAM
Intel Xeon E5620 Intel Xeon E5620 Dell R710 Mobo Hynix 144GB DDR3 ECC PC3L-10600R 
Hard DriveCaseOther
Intel X25-M G2 80GB Dell 710 2.5" - Google Search Appliance Dell Perc H700 Raid Controller 
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Intel Xeon E5-2670 v1 Intel Xeon E5-2670 v1 SuperMicro X9DRL-iF 64GB Kingston ECC (kvr16r11d4/16HA) 
Hard DriveCoolingOSPower
12x 4TB HGST 5K4000 Scythe AP-29 FreeNAS Corsair AX750 
CaseOther
Norco RPC-4224 3x LSI 9211-8i (HBA) 
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