PCI-E PCI-E 2? Tags: Motherboards Compatibility Pci Express Last response: February 2, 2010 1:25 AM in Motherboards Share weunmengp February 1, 2010 5:17:01 AM a pci-e 2 card is compatible with a pci-e slot right and vice versa right? so what's the difference between the two? More about : pci pci | E-mail me updates | Report abuse Register or log in to remove rsmith13 February 1, 2010 5:30:42 AM pci-e 2 faster! | Report abuse Maziar Motherboard Master February 1, 2010 6:07:25 AM Yes a PCI-E 2.0 card will work fine in a PCI-E slot. The differences is that PCI-E 2.0 is 32x where as PCI-E 1.0 is 16x/8x but since no card right now use the whole 32x and that's the reason the difference isn't very much in games. | Report abuse vvhocare5 February 1, 2010 2:22:15 PM The major technical improvement from PCI 1.0 to 2.0 is a doubling of speed - but only if both the mb and add-in card support the 2.0 /2.1 spec. Now we have PCI 3.0 coming soon which doubles the throughput from 2.0. Again you will need a new mb and add-in card to take advantage of the throughput. | Report abuse weunmengp February 1, 2010 3:11:44 PM i see. oh yeah, one off topic: can a micro atx be put into an antec 300? i know it can surely fit but i'm wondering if it has that right riser spots to be placed in. | Report abuse nnyisjesus February 2, 2010 1:25:48 AM i just ordered the antec 300, should fit as im using a micro atx mobo too. ill let you know tomorrow when i get it =) | Report abuse Register or log in to remove Ask the community Publish Tom's Hardware>Forum>Motherboards>PCI-E PCI-E 2?> Related ressources: ForumPCIE 2 .1 CARD IN AN 1.1 SLOT???? Forum2 .1 graphics card on a 1.1 PCI-E slot ForumAsus P8Z68-V Pro Gen3 ??? re PCIe 3.0/ 2 .0 x16_ 2 slot ForumPCI-E 3.0 (x16) Graphics Card in PCI 2 .0 x16 slot possible? ForumIs it worth using a PCI-E 2 .0 Graphics Card on a 2 .0 Slot? ForumDifference between pcie 1.1 & 2 .0 ForumPCIE 3.0 x16 + PCIE 2 .0 x4 ForumPcie 2 0 x 16 card in pcie 3 0 x16 slot ForumThinking about: 1GDR 2 AMD Radeon HD 7770 GHz Edition 1024MB GDDR5 PCIe ForumAdding a 3rd Monitor with a 2 nd card in PCI-E x1 Slot Forum6+ 2 pin pci-e molex adapter? or cheap 450/550w psu. ForumAsRock Extreme 6 Z77 - Sata ports block PCIE2 slot ForumNeed PCIe Controller/Expansion Card with USB 2 .0 Header and SATA Heade Forum2 PCI-E Motherboard with CrossFireX and SLI ForumGTX 560 Ti running at PCI-E 2 .0 4x instead of 16x ForumPCIe 3.0 GPU, CPU only supports PCIe 2 .0. Problem? ForumWill a cpu that's only compatible with pcie 2 .0 run a 3.0 card? ForumPSU with no 6-pin PCI-E to power 2 x6-pin GPU ForumHD 7770 on PCIE 3.0 or HD 6850 on PCIE 2 .0/ 2 .1 (both stock speeds)? ForumWill putting a PCIe 3.0 x16 card into a PCIe 2 .0 x16 mob bottleneck it More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !