Need help here. I have already read through several other threads of people with the same problem, though none of them seem to have exactly the same symptoms. The threads I read are here: https://www.techspot.com/vb/all/win...-wont-boot--No-BIOS-beep-or-video-signal.html http://forums.anandtech.com/messageview.cfm?catid=27&threadid=1919799 My Problem: I am building a new computer. Basic components are: Asus P5LD2 Deluxe Motherboard Intel Pentium D Processor 950, 3.4GHz, LGA775 Pkg, 2x2 L2 Cache, UP only DDR2 1g RAM ATI Radeon X 1600 Pro Just like the other people in those threads, I can turn on the power to my computer, all the interior fans come on, the LED on the motherboard is glowing green, seems to be power everywhere there needs to be. Except the computer won't post. The monitor stays black, and there are no bios beeps. I can't tell if the computer is loading anything or not. It just sits there like a giant rock. I can turn the power on and off with the main tower switch, though the reset doesn't seem to be doing anything. I figure that's nothing to worry about, since if the computer isn't posting anything, there is nothing to interupt. My problem seems to differ slightly from the other people in that, just to make sure my speakers were working, I took the RAM out and rebooted. Except I still didn't get any bios beeps telling me there was a hardward problem. That leads me to suspect there is a problem with the motherboard, though with so many people experiencing the same problem, even with replacement motherboards, I am hesitant to conclude that. One other abnormality in this installation; on the Radeon Graphics Card box, one of the requirements was an additional interior power supply. Except once I had the card in my hands, there is absolutely no place on the card in which a power cord can be plugged into. The manual was made for about 10 different ATI cards, and only says, 'If your card requires additional power, plug a cord into the power plug on the card'. Well, that was really helpfull. Thanks a lot, ATI. Anyway, the fact that I didn't get a bios beep when there were no RAM sticks in any of the dimm slots has me worried. I have checked all the wires plugging into the motherboard relating to sound, on the hopes that one was installed upside down, but no luck. No matter how I have them plugged in, I still get no bios beeps from the empty memory slots. Anyone have any advice? PS: The CPU specs require Intel 945/955X Express chipsets and the specs on the motherboard are compliant with this, possessing a 945P chipset. Also, the bios chip on the board seems to read 0616032 (6160, as I believe it is commonly refered to, though I may be wrong). As far as I can tell from the other threads, this should mean my motherboard has adequate bios for the situation. Though this is a newer pentium with a larger cache, (I think), and so perhaps that is the problem?