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Overclocking a GPU

Hi guys

I've kinda been itching to put together a high and system again and was wondering the following:

If i purchase two 780 and SLI them, do I go with a standard version or an OC or something?

Basically I'm wondering if I can just buy a standard edition and actually overclock them both to the point of the higher priced versions. I had a custom loop in mind so cooling should be no problem.
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    I don't know what makes people believe they can take a reference card and easily OC it to match a factory overclocked card and yes, I am assuming you manually OC the factory OC'd card.

    1. Factory OC'd cards generally come with improved coolers.

    2. Factory OC'd cards most often (EVGA SC series is an exception) come with custom PCBs and beefed up VRMs

    3. factory OC'd cards sometimes use hand binned GPUs

    Custom cooled GFX cards are usually limited to the stock reference versions. generally recommended to buy them pre-assembled.

    I put this together this post for someone last night

    ==============================================

    Id do two separate loops .... using Asus Rampage VI Formula and two Asus Posiedon GTX 700 GPUs (hoping for September release)

    Here's a interior reservoir build.....

    http://rog.asus.com/forum/showthread.php?33364-Maximus-VI-Formula-Show-Casemod-MbK

    This is a bay reservoir s build


    GPU Loop

    Crystal Link Tube Set .... This is 4 slot, 2 - 5 slot options available
    http://www.frozencpu.com/products/10746/ex-tub-671/Bitspower_SLI_Crossfire_Crystal_Link_Tube_Set_-_4_Slot_Spacing_BP-CLTAC-S4.html

    Tubing Adapter .... Bitspower SLI / Crossfire Multi-Link Adapter Pair - Matte Black (BP-MBWP-C47) 2 for Crystal Link,
    http://www.frozencpu.com/products/10743/ex-tub-668/Bitspower_SLI_Crossfire_Multi-Link_Adapter_Pair_-_Matte_Black_BP-MBWP-C47.html

    Tubing Adapter .... Bitspower Matte Black Ultimate G 1/4 Thread 3/8" ID x 1/2" OD Rotary Compression Fitting (BP-MBRCPF-CC2) 2 for GPU connections, 2 for Pump, 2 for Rad, 2 for reservoir so 8
    http://www.frozencpu.com/products/11107/ex-tub-700/Bitspower_Matte_Black_Ultimate_G_14_Thread_38_ID_x_12_OD_Rotary_Compression_Fitting_BP-MBRCPF-CC2.html?tl=g30c409s1032

    Radiator - Alphacool NexXxoS UT60 Full Copper Triple 140mm Radiator 468 x144 x 60mm
    http://www.frozencpu.com/products/16826/ex-rad-427/Alphacool_NexXxoS_UT60_Full_Copper_Triple_140mm_Radiator.html

    Radiator Gasket - XSPC 3 x 140mm Radiator Gasket - 3mm (2 for pull / 3 for push pull)
    http://www.frozencpu.com/products/16826/ex-rad-427/Alphacool_NexXxoS_UT60_Full_Copper_Triple_140mm_Radiator.html

    Reservoir Pump - Alphacool Repack Dual 5.25" Acrylic Reservoir - Clear - w/ D5 Variant Pump Installed (15171) and Swiftech MCP655™ 12v Water Pump w/ Speed Control Option (+$15)
    http://www.frozencpu.com/products/20791/ex-res-616/Alphacool_Repack_Dual_525_Acrylic_Reservoir_-_Clear_-_w_D5_Variant_Pump_Installed_15171.html?tl=g30c97s152


    CPU Loop

    Radiator - Alphacool NexXxoS UT60 Full Copper Dual 140mm Radiator 324 x 144 x 60mm
    http://www.frozencpu.com/products/16825/ex-rad-426/Alphacool_NexXxoS_UT60_Full_Copper_Dual_140mm_Radiator.html

    Radiator Gasket - XSPC 2 x 140mm Radiator Gasket - 3mm (2 for pull / 3 for push pull)
    http://www.frozencpu.com/products/20857/ex-rad-629/XSPC_2_x_140mm_Radiator_Gasket_-_3mm.html

    Reservoir Pump - Alphacool Repack Dual 5.25" Acrylic Reservoir - Clear - w/ D5 Variant Pump Installed (15171) and Swiftech MCP655™ 12v Water Pump w/ Speed Control Option (+$15)
    http://www.frozencpu.com/products/20791/ex-res-616/Alphacool_Repack_Dual_525_Acrylic_Reservoir_-_Clear_-_w_D5_Variant_Pump_Installed_15171.html?tl=g30c97s152

    Water Block - XSPC RayStorm High Performance Acetal CPU Liquid Cooling Block - Black Edition (Intel) (Sockets LGA 115x / 1366 / 2011)
    http://www.frozencpu.com/products/16546/ex-blc-1168/XSPC_RayStorm_High_Performance_Acetal_CPU_Liquid_Cooling_Block_-_Black_Edition_Intel_Sockets_LGA_115x_1366_2011.html

    WB Cover Plate - XSPC Aluminum Red Edition Mounting Face Plate - Intel Raystorm CPU Block
    http://www.frozencpu.com/products/20746/ex-blc-1485/XSPC_Aluminum_Red_Edition_Mounting_Face_Plate_-_Intel_Raystorm_CPU_Block.html

    Tubing Adapter .... Bitspower Matte Black Ultimate G 1/4 Thread 3/8" ID x 1/2" OD Rotary Compression Fitting (BP-MBRCPF-CC2) 2 for Water Block, 2 for Pump, 2 for Rad, 2 for reservoir so 8
    http://www.frozencpu.com/products/11107/ex-tub-700/Bitspower_Matte_Black_Ultimate_G_14_Thread_38_ID_x_12_OD_Rotary_Compression_Fitting_BP-MBRCPF-CC2.html?tl=g30c409s1032

    Tubing - Tygon 2475 Ultra Chemical Resistant Plasticizer Free Tubing - 3/8" ID (1/2" OD) - Clear (ACG00027) .... Figure 10 feet
    http://www.frozencpu.com/products/10691/ex-tub-663/Tygon_2475_Ultra_Chemical_Resistant_Plasticizer_Free_Tubing_-_38_ID_12_OD_-_Clear_ACG00027.html


    You will need (3) 140mm fans for the GPU loop and (2) for the CPU loop....consider later if ya want push-pull.

    If ya case cant mount 140's .... then change to 360 and 240 rads

    Accessories..... fluid ....distilled water recommended .... if ya must have color look at the Mayhem pastel stuff....think about biocides and corrosion inhibiter additives.

    Funnel ?
    http://www.frozencpu.com/products/10772/ex-res-193/PrimoChill_-_Threaded_G_14_Funnel_-_Black_PC-GF-BK.html?tl=g30c101s1206

    Some 45 and 90 bends might come in handy.
    http://www.frozencpu.com/products/11887/ex-tub-737/Bitspower_G14_Matte_Black_Dual_Rotary_45-Degree_Compression_Fitting_CC2_For_ID_38_OD_12_Tube_BP-MB45R2CPF-CC2.html?tl=g30c409s1321
    http://www.frozencpu.com/products/10751/ex-tub-675/Bitspower_G14_Thread_90-Degree_Rotary_38_ID_x_12_OD_Compression_Fitting_-_Matte_Black_BP-MB90R2LCPF-CC2.html?tl=g30c409s1302

    Switch to cylinder reservoir if ya case don't have the bays available.

    AquaComputer Pump Adapter w/ Aqualis Reservoir and Pump Installed + $15 variable speed pump option
    http://www.frozencpu.com/products/16994/ex-res-422/AquaComputer_Pump_Adapter_w_Aqualis_Reservoir_and_Pump_Installed.html?tl=g30c97s152

    Preassembled GPU Options:

    http://www.frozencpu.com/products/20826/ex-vga-37/EVGA_GeForce_GTX_780_HydroCopper_SLI_Ready_Graphics_Card_03G-P4-2789-KR.html?tl=g56

    $250 case option - Look at H20 possibilities
    http://phanteks.com/#&panel1-1&panel2-1
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