Overclock.net › Forums › Graphics Cards › NVIDIA › Overclocking tips while in SLI
New Posts  All Forums:Forum Nav:

Overclocking tips while in SLI

post #1 of 4
Thread Starter 
I've never really SLI'd cards before, I just did with my 680's.

Could somebody clarify some stuff for me?

Like:
A. Do the cards run independently? Does overclocking 1 card and not the other do anything?
B. Do cards not overclock as well while in SLI? I've spent a lot of time overclocking my one 680 to find the sweet spot.. should I forget everything I've done with that and re-test everything while in SLI?

Thanks
post #2 of 4
Overclocking cards with GPU boost is different than it was in the past really... you can OC the cards independently or you can sync them. It'll be an option in whatever tuner you're using.

Generally speaking you want to match the clocks but with boost it's almost impossible to do and not that big of a deal.

I generally don't sync them, overclock them individually, then have at it.
 
Play Server
(7 items)
 
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 
CPUCPUMotherboardRAM
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) 
  hide details  
Reply
 
Play Server
(7 items)
 
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 
CPUCPUMotherboardRAM
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) 
  hide details  
Reply
post #3 of 4
Quote:
Originally Posted by turkletont View Post

I've never really SLI'd cards before, I just did with my 680's.

Could somebody clarify some stuff for me?

Like:
A. Do the cards run independently? Does overclocking 1 card and not the other do anything?
B. Do cards not overclock as well while in SLI? I've spent a lot of time overclocking my one 680 to find the sweet spot.. should I forget everything I've done with that and re-test everything while in SLI?

Thanks

Before trying to find the best OC for both cards, focus on finding out the sweet spot for the new 680.

When you do, start up SLI, figure out which GPU is which, then manually set the sweet spot for each GPU slot separately. Save that configuration. Now, instead of just using that say spot on both cards, realize that you now have potentially double the power and double the heat. So actually don't worry about OC'ing at all. Se if your SLI can handle everything while at stock. At 1080p or 1440p they should be fine.

Reason being, you can save on heat and power usage and reserve that sweet spot OCing for when a game comes out and truly pushes your SLI setup past stock


ps: when running benches, one 670 is set to 1290mhz while the other is maxing at 1202mhz...
Main Rig
(13 items)
 
Secondary Rig
(15 items)
 
 
CPUMotherboardGraphicsGraphics
i7 3770k MSI Z77A-GD65 Gigabyte 780 OC Gigabyte 780 OC 
RAMHard DriveHard DriveOptical Drive
Ripjaw  Samsung F3  Samsung 830  Asus CD-Rom 
CoolingMonitorMonitorPower
Cooler master hyper 212+  Asus  27in 1440p Auria EQ276W 760 Watt Silencer 
Case
Haf 912 
CPUMotherboardGraphicsGraphics
i7 3770k ASRock Z77 Pro4-M 290 XFX DD R9 280X Gigabyte 
GraphicsGraphicsRAMHard Drive
R9 280X MSI Gaming R9 280X Power Cooler Crucial Ballistix  Samsung 830 series 
Hard DriveOptical DriveOSMonitor
WD Black Asus 24x Windows 7 Asus 24in  
MonitorPowerCase
27in 1440p Auria CM 750 600T 
  hide details  
Reply
Main Rig
(13 items)
 
Secondary Rig
(15 items)
 
 
CPUMotherboardGraphicsGraphics
i7 3770k MSI Z77A-GD65 Gigabyte 780 OC Gigabyte 780 OC 
RAMHard DriveHard DriveOptical Drive
Ripjaw  Samsung F3  Samsung 830  Asus CD-Rom 
CoolingMonitorMonitorPower
Cooler master hyper 212+  Asus  27in 1440p Auria EQ276W 760 Watt Silencer 
Case
Haf 912 
CPUMotherboardGraphicsGraphics
i7 3770k ASRock Z77 Pro4-M 290 XFX DD R9 280X Gigabyte 
GraphicsGraphicsRAMHard Drive
R9 280X MSI Gaming R9 280X Power Cooler Crucial Ballistix  Samsung 830 series 
Hard DriveOptical DriveOSMonitor
WD Black Asus 24x Windows 7 Asus 24in  
MonitorPowerCase
27in 1440p Auria CM 750 600T 
  hide details  
Reply
post #4 of 4
Thread Starter 
Okay thanks for the info. Arma 3 is already pushing my 2 680's to the max but I think that's due to poor optimization than anything else. Not sure how much OC'ing will help such a poorly optimized game in the first place
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: NVIDIA
Overclock.net › Forums › Graphics Cards › NVIDIA › Overclocking tips while in SLI