I saw that there are a few threads regarding an endless reboot cycle with new homebuilt systems, but my situation is a little different. My system (specs below) has been up and running for 8 months without any issue.
I recently saw a deal on newegg for 2x2GB Corsair (DDR2) for cheap so I decided to buy and install. I installed the new RAM last night, replacing the 2x1GB GSkill RAM in the same slots (1/3 I believe) and tried to turn the PC back on. I did not touch anything else inside the PC other than the ram. I did not even need to move any wires to access the RAM slots.
However, my PC is now in an endless reboot loop, in which it restarts every few seconds, without me even touching anything. Nothing is displayed on the screen, so I can't enter the BIOS. I made sure all the connections inside are still secured, and I even tried putting the 2x1GB Gskill memory back in, but it still remains in the endless loop.
I am fairly computer literate, but I put the PC together with someone much more experienced than I, so I am trying to avoid the, "take everything out and put it back in" method of fixing the issue if it all possible. I appreciate any and all ideas.
I have tried each kind (Gskill & Corsair) in DIMM1 alone. Both result in the loop again. I have also tried booting with NO RAM and NO videocard and they both result in the boot loop again.
I was on the phone with the GIGABYTE support guy, who was surprisingly helpful, but at one point he wanted me to completely take out the board leaving the CPU/fan/vidcard/1 stick ram while somehow shorting the power pins (the ones that lead to the front of the case, but I decided he was just getting to advanced for me and I thought I would end up messing something up FAR worse.
I can't believe upgrading RAM lead to this. There are literally no wires blocking the DIMMs, and there is no way I unplugged something. I have checked all the connections anyway. The guy on the phone also claimed I could have shorted something by plugging in the ram 'too hard'. I was pretty careful when I plugged it in, though. I am not that dumb.
Don't know why it would have started now, but do you have a cooler on your CPU? Have you checked it? The last I had a bootloop problem it was automatically shutting off because it thought the CPU would overheat.
I'm not going to pretend to give you any other advice other than read the "Boot problems" thread in the new system builds forum.
When you took the mobo battery out did you also unplug the power supply first? The reason for removing the mobo battery would be to reset the cmos (which is a very good idea for your situation), however I think if you leave it plugged in, removing the battery is useless. Also, I'd look for 2-3 pins on the motherboard labeled CMOS, and try to reset it using those pins. If it's two pins just find something that conducts electricity and touch both pins with it. If it's 3 pins, there's prob a little plastic jumper thing, take it off the two its on, and put it on the "other" two. Move the plastic jumper back to where it was and turn the system on.
Whenever I have been messing around inside the case, I have had the computer unplugged from the wall. I tried taking out the battery, and tried resetting the CMOS via the 2-pins near the battery with a screw driver. Nothing has worked.
Right now I have everything for my ideal (2x2GB ram) configuration plugged into the MOBO, but not sure what to try next.