Adding 4GB RAM to old Dell Desktop

  hammyk79 19:25 15 Jan 2016

Hello Sorry for being a total novice, I have a dell desktop (old) with 4gb ddr3 (pc3-12800) udim RAM, I bought 4gb ram off internet which is 4gb 1Rx8 PC3L - 12800U-11-13-A1 should it work if I add the new one? Many thanks

  wee eddie 19:49 15 Jan 2016

Is it a 32bit, or 64bit System?

  csqwared 19:53 15 Jan 2016

How old is the desktop and what OS is it? If it's Win XP 32 bit the operating system only recognises 3.25gb so fitting more RAM is pointless I'm afraid.

  hammyk79 20:18 15 Jan 2016

Thanks Wee Eddie & csqwared. Had to check, its 32 bit but is running Windows 7 Professional.

Many thanks

  wee eddie 21:14 15 Jan 2016

Unless you change it to 64bit, any extra RAM will not be recognised

  hammyk79 14:47 16 Jan 2016

Thanks wee eddie is it a big job upgrading to 64 bit? Would I need to change the motherboard?


  Fruit Bat /\0/\ 16:22 16 Jan 2016

cpu and probably motherboard - that prbably means a better PSU as dells are cheap rubbish PSU to save cost.

then maybe you would want a better graphics card :0)

probably better to save your money and bay a new PC would could always use your old monitor and keyboard

  csqwared 20:03 16 Jan 2016

cpu and probably motherboard

which would most likely mean you would have to reinstall the OS.

  hammyk79 08:54 17 Jan 2016

Thanks for all the advise. I won't be upgrading (prob just buy a new one)


  robin_x 13:53 17 Jan 2016

See Control Panel > System and Security > System.

This will tell you if you have Win7 Pro 32 (x86) on a 64 bit processor.

If so, you could try Upgrade to W10 Pro 32 bit for free, then download and clean install W10 Pro 64 bit via W10 Media Creation Tool link


Make full System Image Backup first if you want to have a go.

  hammyk79 13:54 17 Jan 2016

Many thanks Roin_x

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