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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)
 
For Sale: [FS] Z97 system: Xeon and RAM
$160 (USD) or best offer
CPUMotherboardGraphicsGraphics
i7-5775C ASUS Sabertooth Z97 Mark 2 Sapphire RX 480 (reference) MSI Low-Profile 750Ti 
RAMHard DriveHard DriveHard Drive
Corsair Dominator Platinum - 2x8GB Crucial M500 - 960GB Samsung 840 - 250GB WD Scorpio Blue - 1TB 
Hard DriveCoolingCoolingOS
ADATA SP900 - 64GB Scythe BIG Shuriken 2 Rev. B PNY Quadro 600 blower Windows 10 
MonitorMonitorMonitorKeyboard
ASUS VE247H - 1080p Gateway FPD1960 - 1280x1024 Samsung S20D300 - 900p, portrait Rosewill RK9000I - Cherry MX Blue 
PowerCaseMouseOther
Rosewill HIVE 650W Riotoro CR1080 SteelSeries Rival 100 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 
  hide details  
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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)