Precision 390 I upgraded to CPU to E6700 received 1-3-4 Tags: CPUs Last response: September 16, 2010 2:26 PM in CPUs Share clopezlinus September 16, 2010 2:19:27 PM Hi, I tried upgrading my E6300 CPU to a E6700 CPU on my Precision 390. All I got were the diagnostic lights firing up at 1-3-4 with no signal on the screen. The bios is up to date at 2.6. It is a 975x Mobo so I assumed that the upgrade would work. Also the E6700 in question is a different spec. The one I got is the 3.2 Ghz with 2 MB cache and 1066 Mhz FSB. When I swap it back to the E6300 CPU, everything works fine. Is there any way i Can get this to work or should I just return the CPU? Thanks in advance More about : precision 390 upgraded cpu e6700 received o1die a c 159 à CPUs September 16, 2010 2:26:41 PM I would return the cpu. Your board is too old for a proper upgrade. Can't find your answer ? Ask ! Publish Related resources : ForumUpgrading Processor on Dell Precision 390 ForumCPU Upgrade Failure? Why? ForumBad FPS in all games with GTX680 + i7 930 ForumDoes AMD's Athlon 64 X2 6000 Have Any Kick Left? ForumBuilding a new one, need professional help! ForumBuild gaming computer $1000-$1200 ForumGaming Rig ForumApple iMac Display Problems Reported ForumDell 720: All 4 memory modules dead at once, need help ASAP ForumHelp, I don't know what temp my Core 2 Duo is running at!!! ForumShow Off Your Rig ForumPC Gaming /Console Gaming cost in the future ForumAbout a 8800 GTS 640mb ForumDaily Tech has released some information on G80's. ForumStill think Conroe isn't (essentially) a paper launch? ForumREAD this- all the hype ForumPSU Help ForumTransport of a CPU ForumMy CPU multiplier and ram frequencies are going CRAZY. ForumHow do you take off the cover of a Dell Dimensions CPU? More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !