TL;DR: i came across some beep codes that aren't the usual memory / vga codes. Also they change randomly and my PC just does not post/boot.
i am searching for this error for an eternity and already tried alot of possible solutions without any success. So i am trying to get your know-how... Since 2 days my PC just wont POST - without any modification. It worked just fine and then the next day the error occured.
First it beeped 1 time long and 3 time short, then i restarted it and the new pattern was: 1 long, 2 short. I checked the manual and it stated that 3 short mean no VGA and 2 short mean no memory - both was there. Then I tried removing the memory: the beep code was a lot faster and repeated itself. I also tried removing the VGA: the beep code was a lot slower.
Therefore these aren't the codes from the manual - this seem to be other codes which i couldn't find anywhere...
To make it even more weirder: After i plugged in a keyboard, i got 1 long followed by another long beep. Then after a restart just 1 beep, but still no post.
PS: If it helps the LED light order: CPU, memory (short), vga, memory (long), BEEP, boot (long), random beeps
PPS: Im using 4 DDR3 memory units (each tested speratly, nothing changed), an Core i7 875K and a Radeon HD 6870.
Any ideas are welcome, hope you can help me! Thank you!
Also clearing the CMOS and removing the BIOS battery didn't work.