RAM cannot be detected - ASUS COMPUTER INTL P5SD2-VM MBD MATX LGA 775-SIS 672 968 VGA FETH (610839154845) Motherboard

This is Ram related
C1 = Detect memory, Auto-detection of DRAM size, Detect Ram type.
Replace Ram with new one and try again

The beep tables are as follows depending on the TYPE of Alienware you have:

Laptops
1 Possible Motherboard (covers BIOS corruption or ROM error)
2 No RAM detected
3 Possible Motherboard Chipset
4 RAM failure (other)
5 CMOS Battery
6 Video card/chip
7 CPU
8 LCD

Desktops
1 Possible Motherboard (covers BIOS corruption or ROM error)
2 No RAM detected
3 Possible Motherboard Chipset
4 RAM failure (other)
5 Real Time Clock (RTC)
6 Video card/chip
7 CPU

A SUGGETION IS TO REPLACE THE RAM WITH NEW.

Step 1:
A memory slot is a slot in your motherboard where you place your RAM (Random Access Memory) card. In layman's terms, the RAM is the "temporary memory" that the computer utilizes whenever it is turned on. If the computer cannot detect a RAM card installed in one of your memory slots, you have to troubleshoot the problem immediately.
Ensure that the problem is with the RAM slot and not the memory card. Turn off the computer, unplug all devices connected into the ports of your computer and open the computer casing. Refer to the manual of the computer to know the specific steps to follow in opening the computer casing. Remove the memory card from the RAM slot. To do this, unlock the card using both hands. Pull the card away from the slot to remove. Inspect the RAM card for any apparent physical damages. Wipe the card with a clean cloth to remove dust. Also wipe the memory slot in your motherboard. Place the RAM card back into the memory slot. Press the card into the slot until it clicks into place. Close the computer casing, connect the cables back into their respective slots and turn on the computer. Turn on the computer and see if the memory is detected. If the computer does not boot up, the RAM card is not detected by the computer. Assuming that you have two memory cards installed in the computer and the computer boots up, check if the second memory card is detected by the computer. Click "Start," right-click "Computer" and then "Properties." Under "System," check the amount of "Installed Memory (RAM)." If the RAM is not detected, the RAM slot or the RAM card itself may be malfunctioning. Place the RAM card into another memory slot in your motherboard and see if the card is detected. If it is detected, the other memory slot is malfunctioning. Do not install any RAM card into it to avoid further damage. If it is not detected, the RAM card may be malfunctioning. Insert another RAM card into the slot. If the RAM card is detected, the slot is malfunctioning.
http://www.youtube.com/watch?v=wGp5AiyJInI repair memory slot

my DVD ROM IS NOT DETECTED BY THE COMPUTER HL-DT-ST DVD-RAM GSA-H54N

Sounds like the Memory Ram that you tried to install went haywire. Take it out and make sure this ram is compatible.

Most Operating systems that are 32 bit only support 4GB of RAM. You have to have 64bit version to recognize more.

goto their website and download the latest bios for your system.

Make sure the board supports 2 gigs of ram, and make sure the board supports the type of ram you installed.
This info can be found either on the manufacturers website and/or the user manual that came with the board.

Hi,

Unplug both ram dim. Plugin one single ram dim and check. Remove first and plugin second dim then check is detected ? If both are detected one by one then check clock speed of both rams , it should match, otherwise only one will be detected. Also check motherboard manual for supported ram eg. ddr1, ddr2 , cloack speed etc.

Thanks,

Vksr