Originally Posted by Tweeky HelpHi CH5F people my CH5F quit working to day it worked just fine yesterdaySee my sigrig below its up to dateI have reset the board may timesI have the new BIOS chip from ASUS with BIOS 1102It has been running overclocked at 4250 MHz and it worked just fineWhen I turn it on all the fans spin up and the CPU light comes on and that’s as far as it goIf I reset and use the go button all the fans start, the CPU light comes on and the ram light blinksI have tried different ramLike I said its has been running just fine no new parts and no additional overclockingI plan to contact ASUS tomorrowBut any input would be welcomeCould it be a bad CPU or could it be a bad motherboardThe power supply checks fineThanks
Sorry to hear about your problem.
When I read this it reminded me of my experience powering on the machine for the very first time. I see you are running two gfx cards, as am I.
What was happening back then was that in no way shape or form would anything come up on my display when powering on the system. For all intents and purposes the machine looked dead except all the pretty lights were on and all the fans were running. My display was connected to the DVI connector I normally connected to in previous rig. At some point during the experience I moved which connector I attached my display to, and lo and behold, I was finally able to see the BIOS logo and was able to boot into Windows and all was fine. When I moved the display back to the original connector it stopped working again, but other times it would work intermittently
Here's my guess on why that happened.
When I first installed the gfx cards, I used the 2nd and 3rd PCI-E x16 slots because I didn't want to lose access to the PCI-E x1 slot. Asus suggests use of slots 1 and 3 when running SLI or Xfire. Eventually I reconfigured my cards to use slots 1 and 3 and now I'm able to use the "normal" DVI connector.