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Can you use PCI 3.0 on 2.0 slot...?(question about backwards compatability and can i run)

post #1 of 2
Thread Starter 
hello I was wondering if I am able to run a amd 7950 on my current system because i keep reading a lot fo motherboards give it problems if its old.

I am using ( check sig )
P45 motherboard ( gigabyte EP45-UD3P)

I am also scared of the size of the cards i see it says it measures 10.6 inches

I am almost close to grabbing a 7950 after all the cheap prices i keep watching.
post #2 of 2
AMD only supports PCIe 2.0 as of now. Almost all GPUs available are PCIe 3.0. Many AMD users (e.g. me) are using a modern GPU in an older slot. QED, PCIe 3.0 works fine in 2.0 slots. PCIe and SATA, among others are both backwards and forwards compatible, meaning not only can old components function in new slots, but new components can function in old slots. That rule of thumb for PCIe is, if the card fits, it ought to work. Maybe not at full speeds, but it will work.
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Triumvirate
(20 items)
 
Osmium
(8 items)
 
EleMINT 24
(8 items)
 
CPUMotherboardGraphicsGraphics
Xeon E3-1226 v3 ASRock Z97M OC Formula Sapphire RX 480 (reference) MSI Low-Profile 750Ti 
RAMRAMHard DriveHard Drive
Kingston Blu Red - 2x4GB ADATA XPG - 2x4GB Crucial M500 960GB Samsung 840 250GB 
Hard DriveCoolingCoolingCooling
WD Scorpio Blue 1TB Cooler Master 212+ PNY Quadro 600 blower Corsair H55 + Kraken G10 
OSMonitorMonitorKeyboard
Windows 10 Pro ASUS VE247H - 1080p Gateway FPD1960 - 1280x1024 Rosewill RK9000I - Cherry MX Blue 
PowerCaseMouseOther
Rosewill HIVE 650W Fractal Design Arc Mini R2 Razer DeathAdder 2013 CyberPower 1500PFCLCD 
CPUMotherboardRAMHard Drive
AMD A10-7870K ASRock FM2A88X-ITX+ G.Skill Ripjaws X - 2x4GB @ 2400MT/s Samsung 840 120GB 
CoolingOSPowerCase
Evercool EC-HPS-810CP Windows 7 Pro 64-bit PicoPSU-120-WI-25 Mini-Box M350 
CPUMotherboardGraphicsRAM
Intel i3-4005U OEM Intel HD 4200 4GB DDR3 (soldered) 
Hard DriveOSMonitorPower
MyDigitalSSD Super Boot Eco 120GB Linux Mint 17.1 Cinnamon 1366x768 TN panel :'( brick 
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Overclock.net › Forums › Graphics Cards › Graphics Cards - General › Can you use PCI 3.0 on 2.0 slot...?(question about backwards compatability and can i run)