"no video" with no beep codes is RAM failure. This is an example where the RAM BGA chips that have failed exist at initial address space used by BIOS. This prevents the BIOS loading from EEPROM into memory space and results in a machine that will power on but with no video signal. It's very common for inexperienced techs to think it's the video card and start farting around with it when the entire time all they had to do was swap memory sticks to see if it's the ram.
80% of the time ram and 20% video adapter. If it's the video adapter it's 80% of the time they forgot to attach PCI-E power connector from PSU and 20% video card failure. And 90% of the time the video card failure is caused by user the moment they powered on without the PCI-E power connector attached 20% of the time!
In other words the inexperience PC builder damaged the hardware as usual. It's very rare stuff ships DOE and when an "luser" reports multiple DOA it's usually PEBKAC or ID-10T error.
PS the last rant is entirely humor ppl!
Edited by HiroPro, 07 August 2011 - 06:20 PM.