Closed How to tell how many PCI-E lanes? Tags: Graphics Cards PCI Express Graphics Last response: May 27, 2012 8:44 PM in Graphics & Displays Share WyomingKnott a b U Graphics card May 27, 2012 12:10:04 AM I had to put my graphics card into the second slot in my Asus P7P55D Deluxe. The fanless cooler conflicts with my CPU cooler when it's in the first slot. Is there a way to tell how many lanes are actually available to it in that slot? The manual doesn't mention what happens with a single card in any slot other than the first. The card is a Sapphire Radeon HD 3650 512MB DDR2. Okay, it's not the fastest and it probably can't max out 8 lanes, but it's silent. More about : pci lanes Best solution Sunius a c 291 U Graphics card May 27, 2012 12:16:17 AM You can download free software called GPU-z, it will tell you how many lanes are available at bus interface section. http://www.techpowerup.com/gpuz/ Share BigMack70 May 27, 2012 12:31:46 AM If that's PCI-e 2.0, I doubt that the 3650 would even max out 4 lanes. Anyways, make sure you enable the little test in GPU-z that gets your graphics card working so that it reports the lane speed correctly. Score 0 Can't find your answer ? Ask ! Get the answer WyomingKnott a b U Graphics card May 27, 2012 7:07:05 PM GPU-Z it is. BigMack70, you are probably right. Since I don't do any 3D gamingg, I can afford to use a low-power no-fan part. Score 0 WyomingKnott a b U Graphics card May 27, 2012 7:07:26 PM Best answer selected by WyomingKnott. Score 0 Mousemonkey a c 274 U Graphics card May 27, 2012 8:44:43 PM This topic has been closed by Mousemonkey Score 0 Can't find your answer ? Ask ! Publish Read discussions in other Graphics & Displays categories Ati GPUs Graphics Cards Gtx HD Monitors SLI Crossfire Tuner Cards Radeon Video Diamond Multimedia Matrox Nvidia Palit PowerColor Asus Games !