Machine won't boot with 2 video cards Tags: Graphics Cards Boot Graphics Last response: May 16, 2010 7:53 PM in Graphics & Displays Share hyzerfool May 16, 2010 2:11:40 PM I'm trying to add a second video card so I can go from 2 monitors to 3. I only have PCI or PCIe x1 slots available. Existing video card is nvidia 7300 GS (PCIe x16) New card is Sparkle nvidia GeForce 8400 GS (PCI) Machine boots fine with either one in by itself. When I try to boot with both cards in, I get message telling me that no boot device was found. Motherboard is Intel DP35DP w/ 8 GB of RAM Power supply is Antec BP550 plus OS is Windows 7 64-bit, but that shouldn't matter right now as I can't get to the OS... My first thought was a power supply issue. The machine has 3 hard drives (2 in RAID array), I disabled the 3rd hard drive and the DVD drive (to reduce power load) but got the same result. I haven't found anything in BIOS that looks particularly promising. I'm at a loss. Any suggestions? More about : machine boot video cards juicycrapachino May 16, 2010 3:17:09 PM Did you connect the SLI bridge properly? Double check that and also it might be the slots of each card. One is PCIe x16 and other is PCI, that might be the issue...But I'm not %100 sure... m 0 l Rustyy117 a c 126 U Graphics card May 16, 2010 3:21:14 PM juicycrapachino said:Did you connect the SLI bridge properly? Double check that and also it might be the slots of each card. One is PCIe x16 and other is PCI, that might be the issue...But I'm not %100 sure... You cant run a 7300 GS and a 8400 GS in SLi m 0 l Can't find your answer ? Ask ! Get the answer hyzerfool May 16, 2010 7:53:04 PM Yes, not trying to do SLI. I believe SLI uses 2 cards to drive 1 monitor. I want to drive 3 monitors. m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedMachine Won't Boot. Powers on, No Video Forum Moved my e-machine k52f now it wont boot just goes beep beep beep every 2-3 seco Forum SolvedNew Power supply wont boot pc but will power video card Forum PCIe 16x video card into PCIe 1x COMPUTER WONT BOOT Forum SY-P4I865PE Plus Dragon 2 new machine wont boot Forum SY-P4I865PE Plus Dragon 2 new machine wont boot Forum Machine won't boot after installing SP2. Forum Quad monitors with 2 video cards on an older machine. Forum SolvedComputer wont boot with my video card in Forum SolvedInstalling new video card, computer won't boot Forum SolvedWindows 8 HDD transfered to different machine, and won't boot. Forum SolvedMachine won't boot with new RAM(older machine) Forum No Video output from the Graphics Card ssd hard drive won't boot. Forum 1300w + z87extreme/ac won't boot more then 2x cards that require 2x 8pins.... Forum Won't boot after installing replacement video card Forum Video card fan spins at max at boot, wont even get beep from BIOS Forum SolvedMachine Won't Boot After GTX 760 Installation Forum Dual non-SLI video cards in ASUS Maximus Motherboard won't boot Forum windows won't boot with dual video cards Forum Computer won't boot with any video card in. 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 !