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Does PCB affect overclocking potential?

post #1 of 3
Thread Starter 
Hello forum,

I've been thinking about doing a CPU-GPU loop for a few months now, and recently a question started bothering me:

Does the PCB affect how much you can overclock a GPU?

Many manufacturers (MSI, Asus, Gigabyte) make their own custom PCBs for their GPUs, and if you would want to watercool such a card you'd need to find a custom waterblock (I know EK generally has some). But if you're going to watercool and overclock the GPU anyway, does it matter which PCB you have?
post #2 of 3
It's not so much the PCB, but rather the components other manufactures add or remove from their cards. Each manufacturer will have different OC capabilities, combined with the silicon lottery on each individual card. Your best bet is to read reviews and posts of folks that are OCing and see what works best for you to help pick a brand.

WC blocks do vary based on manufacture of a card because they add and remove components or relocated components. Most water block vendors will have a compatibility list you can check against. You could also go with universal blocks that usually have a smaller coverage area, and would then need to add some passive heatsinks to areas on the card not covered by the universal block.
post #3 of 3
In the past, better pcb allow clean voltage delivery and some have very precise voltage unlocked adjustment to let you get more OC (voltage scales with core speed).

With maxwell, voltage doesn't matter and the only thing that does is your luck in getting a good silicon sample. Any pcb from any brand won't improve (and sometime more expensive pcb oc worse than the cheap one), voltage doesn't matter and only temperature will allow you to oc high.


Get the cheapest 1080, 1070, maxwell card you can find. All of them OC difference is only at best 40-75mhz higher or lower. Doesn't really matter in games where you will see only 5-10fps difference at best.
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紅魔館
(12 items)
 
秋山 澪
(11 items)
 
For Sale: Crucial 2x8GB DDR4 2400 / 1TB 2.5" HDD
$40 (USD) or best offer
CPUMotherboardGraphicsRAM
i7 5820K ASUS X99 Deluxe Zotac GTX 1080 AMP! Crucial Ballistix Sport 4x4G DDR4-2400 
Hard DriveHard DriveOptical DriveCooling
WD Black 4TB Samsung 850 EVO 1TB Dell CH30N BD-Read Noctua NH-D15 
CoolingOSPowerCase
Noctua NF-A14 PWM x6 Windows 10 Enterprise EVGA 750W G2 Phanteks Enthoo Luxe 
CPUMotherboardGraphicsGraphics
i7 7700K P870KM1 Nvidia GeForce GTX 1080 Nvidia GeForce GTX 1080 
RAMHard DriveHard DriveOS
Gskill 3000MHz 16GB F4-3000C16D-16GRS  Samsung 850 EVO 500GB Samsung 850 Pro 500GB Windows 10 Enterprise 
MonitorPowerCase
AUO B173QTN01.0 2560x1440p G-sync  Eurocom 780W Clevo P870KM1 
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