happened? But let's face it, without sophisticated test equipment there's really no way to know for sure. Furthermore after doing all the swaps with 'known good' parts, I like you, was left wondering what the H. I've had two ASUS boards in the past fail in precisely this manner, i.e. Quote: Obviously I require two new m/b's and will be placing an order today but the real purpose of this post is to ask if anybody else has experienced this type of issue or can shed any light onto what the heck causes it! Obviously I require two new m/b's and will be placing an order today but the real purpose of this post is to ask if anybody else has experienced this type of issue or can shed any light onto what the heck causes it!
I've performed all the tests mentioned above and have even bought a new bios chip (to satisfy my curiosity more than anything) but I'm no further forward - although I can't be sure the new chip is working as I don't even get the 'no ram installed' beeps with it in the board. This time an Asus H81M-PLUS using one of my 280X's. Several weeks later one of my crunchers died in exactly the same way. I then swapped the PSU to get the same result and tested the ram and cpu in a known good machine and found they work perfectly. Swapping each ram stick between available slots also changes nothing but at this point it should be noted that having no ram installed will produce the expected bios beep error code. Numerous re-starts and cold starts and the fault persists so I clear the cmos, disconnect all ancillaries etc. so I re-booted to get the same effect but this time I noted the lack of the regular bios beep. On re-boot the monitor "woke up" but all I got was a black screen - no post splash etc. The first to fail was a rarely used non crunching Asus Z97-K based Windows 7 Pro machine using onboard graphics that was working perfectly until it was cleanly shut down and moved (about two feet) to a new location. In recent weeks I have had two apparently healthy systems fail with the thread title symptom's.
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