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Windows 7: 2 GB Ram is not working

23 Aug 2014   #1
Joseph Han

Windows 8.1 Pro
2 GB Ram is not working

Hi guys I have bought Princeton 2 GB DDR2 800 MHz Dual channel when I installed the ram on my computer DELL OPTIPLEX 745 2 and 4 error lights glow. When I press power button the bios doesn't load with no beep sound when I installed it in DIMM 3. But when I installed it in DIMM 1, 2, or 4 Bios doesn't load and give me the beep sound. But all the fans were running and when I touched the RAM it was also normal warm.

!!!!!!!!!!!!!! Please Help. !!!!!!!!!!!!!!!!!

My System SpecsSystem Spec
23 Aug 2014   #2

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit

Why did you choose "Princeton 2 GB DDR2 800 MHz Dual channel" RAM rather than something else?
My System SpecsSystem Spec
24 Aug 2014   #3
Joseph Han

Windows 8.1 Pro

Because the Shopkeeper said its good and cheap.
My System SpecsSystem Spec

24 Aug 2014   #4

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint

With all due respect to the shopkeeper, my experience with computer parts is that good and cheap rarely belong in the same sentence.
My System SpecsSystem Spec
24 Aug 2014   #5
Joseph Han

Windows 8.1 Pro

Ok ok I get it but tell me the solution.
My System SpecsSystem Spec
24 Aug 2014   #6

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)

You need to find out the maximum memory your motherboard will take and what type and speed memory it will take.

Google is your friend
My System SpecsSystem Spec
24 Aug 2014   #7

Win7 Pro 32bit
Maximum RAM accommodated is 8GB unless you have the Ultra Small Form Factor. That chassis limit is 4GB.

The manual
also says that after you install more RAM, you need to follow these instructions:

The computer detects that the new memory does not match the existing configuration information and generates the following message:
The amount of system memory has changed.
Strike the F1 key to continue, F2 to run the setup utility
9. Press <F2> to enter system setup and check the value for System Memory.
The computer should have changed the value of System Memory to reflect the newly installed memory. Verify the new total. If it is correct, skip to
step 11.
10. If the memory total is incorrect, turn off and disconnect your computer and devices from their electrical outlets. Open the computer cover and check the
installed memory modules to ensure that they are seated properly in their sockets. Then repeat steps 7, 8, and 9.
11. When the System Memory total is correct, press <Esc> to exit system setup.
12. Run the Dell Diagnostics (see Dell Diagnostics) to verify that the memory modules are operating properly.

If you're doing all this, and still have a problem, my first thought is that you've got a malfunctioning motherboard.
My System SpecsSystem Spec
24 Aug 2014   #8

Win7 Pro 32bit

My System SpecsSystem Spec
24 Aug 2014   #9

Windows 7 Pro-x64

According to the specs, 2GB 800Mhz DIMMs are not supported. You have to use 667Mhz DIMMs or drop to 512 or 1GB DIMMs for 800Mhz.
My System SpecsSystem Spec
25 Aug 2014   #10
Joseph Han

Windows 8.1 Pro

Thanks to all of you to give me all this information but I know that tooo. But when I installed 2 gb ram in my computer it was working and when take it off and then installed it wasn't working.
My System SpecsSystem Spec

 2 GB Ram is not working

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