HD4850 working at x4 link width instead of x16 Tags: Graphics Cards Graphics Last response: June 7, 2011 2:54 PM in Graphics & Displays Share hellzERk June 7, 2011 8:23:35 AM Well, as the topic says.. my graphic card is been running at x4 link width even tho I'm pretty sure it should work at x16... I've been looking for an answer everywhere but every thread about this problem has been solved and none of those solutions worked for me... some of those were: -set the power options to high performance. didnt work -Make sure it is in the dedicated upper PCIE 2.0 x16 slot. And it is. -Make sure the other PCIE 2.0 x16 slot isn't being use. And it isn't. -Uninstalled everything from ATI/AMD from my computer and reinstall the latest drivers. - Flashed my BIOS to the latest version available. Then I decided to get a second opinion, ( I knew it was running at x4 because of CCC ) and both CPU-Z and GPU-Z told me the same.. that I was running my GPU at x4 when the max available was x16. I just don't know what else to do, I also went into my BIOS and look for anything that would let me set or force the link width, but there was nothing. my specs are: Windows 7 64bit Ultimate GA-MA78G-DS3H rev 2.1 Phenom 9550 2.2GHz @ 2.6GHz 2x2GB OCZ Platinium DDR2 1066mhz Gigabyte HD4850 512mb I'll glady accept any comments or suggestions on what do to (PLEASE HELP ME) Thanks in advance. More about : hd4850 working link width x16 Maziar a c 169 U Graphics card June 7, 2011 9:13:02 AM Try updating your BIOS.If it didn't help,then probably your motherboard is defective. Can you test the card in another system ? m 0 l hellzERk June 7, 2011 9:49:47 AM Yes I will as soon as I get a chance. m 0 l Can't find your answer ? Ask ! Get the answer devroz June 7, 2011 2:54:13 PM Check the manual of your motherboard and also download the online instructions. My motherboard needs single card gpus to be connected to the bottom slot and a placeholder to be put into the top slot for 16x. m 0 l Can't find your answer ? Ask ! Publish Related resources CPU-Z reads link width x1 instead of x16 Forum SolvedDo Gfx cards switch to X4 instead of X16 if theres not enought power Forum GPU is running at PCI-E x4 instead of x16 Forum 8600 GTS runs at PCIE link mode x2 instead of x16 Forum PCI card running @ x4 instead of x16 Forum SolvedWill this graphic card work the same in the PCI Express 2.0 x16 1(running at x4) slot? Forum ASUS P6T PCIE 2.0 X16 (x4 at link)??? Forum SolvedWill a PCIe 2.0 x4 SSD work in a PCIe 2.0 x16 slot? Forum New GTX 670 working on x4 but not x16?! Forum P55-UD2 pciE X16 not working--what do I lose using X4? Forum GPU suddenly won't be detected in PCI-E x16, works in x4 Forum Will it work 1 videocard at x16 the other card x4 for physics? Forum More resources 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 !