Question about Dell OptiPlex GX270 Small Mini-Tower Desktop (162823025)

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OptiPlex GX270 mini tower

Has 4 slots. ive installed 2 512/s pc2700 400hrtzs ram. board came with 1 256 333 hrtzs i in stalling them in dimm 1 & 2. both connecters are gold, as are boards. the board reconized (version a07) the change after rebot. however widows(xp pro) says im running at 256k still, system infor inside pc confirmed it. however the checker here reconised that there was 1gig. what gives?

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  • Anonymous Dec 22, 2008

    naa i handled that. i used the same type of Ram in dim 1 & dim 2one is 512 & one is 256). its a dell so i expected a problem. but holyyhell not this big. btw. im pretty decent with pcs. i would say im a novice, definatly no expert. any help u can pravide would be most apprecated

  • grimoris Dec 22, 2008

    srry thats me just above. forgot to login. thxs

  • grimoris Dec 22, 2008

    sounds as if you mixed dd1 and dd2 the system will recognize the dd2 over dd1

    can u idot proof that. not sure what u mean. are u talking bout the ram slots? if so i only am using dim1/2, not 3/4. no matter what i do it still shows up as 256m of ram.

  • grimoris Dec 26, 2008

    no will try that & post soon thxs

  • grimoris Dec 28, 2008

    "have you pulled the battery out and reinstalled to clear the bios this will force a self test of all components, If it tests and shows correctly enter setup and save config. did you try that?"

    THANK YOU SO MUCH! it worked *does happy dance*

  • Leslie May 11, 2010

    after checking with dell you have 2 sets of dd1 banks capac. of 4 gigs when you installed the ram did it do a self tedt on the ram,

    have you pulled the battery out and reinstalled to clear the bios this will force a self test of all components, If it tests and shows correctly enter setup and save config. did you try that?

  • Leslie May 11, 2010

    there are 2 banks each bank has 2 dimm slots, most of the time one bank will be for dd1 and one bank will be for dd2

    ddr2 is much faster than dd1 but they look the same except for one detail the slot key is moved slightly farther up and it has more gold contact points what is the speed of the ram you used and what is the speed of the ram you took out?

    write me at and I will see what I can find out about your machine form dell

  • Leslie May 11, 2010

    on the mb are you given the option to use both banks or just one by use of a jumper? when you boot into the bios does it read the full amount you installed?

  • Leslie May 11, 2010

    sounds as if you mixed dd1 and dd2 the system will recognize the dd2 over dd1


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Thats because your are trying to install two memory card for different mhz bus speed for eg 256 mb of 333 mhz and 2*512 of 400 mhz go either for forur stick on 256 mb of 333mhz or go for 4 stickes of 1gb of 400 mhz it will work

Posted on Nov 02, 2009

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Remove the 256mb memory and insert the 512mb memory in slot1 and see whether it works. Please note that the memory needs to be in pairs.

I think the GX260 is mini tower has two different moles
1) PC3200 compatible with memory - 184 Pin DDR3200 400MHz

2) PC2700 compatible with memory -184 Pin DDR2700 333MHz

Please enter the service tag on and find the manual and the right memory for your PC

All the best!

Posted on Aug 10, 2009

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OptiPlex GX270 can be small form-factor, small desktop or small mini-tower. The DIMM slots and therefore maximum memroy capacity depends on the form factor. Double check our OptiPlex GX270 and find memory info below.

Memory Type
333MHz (PC2700) or 400MHz (PC3200) DDR SDRAM

Memory connectors/DIMM Slots
small form-factor: 2
small desktop: 4
small mini-tower: 4

Memory capacities Supported
128MB, 256MB, 512MB, or 1GB non-ECC

Minimum memory
128 MB

Maximum memory
small form-factor: 2 GB
small desktop: 4 GB
small mini-tower: 4 GB


Apr 13, 2008 | Dell OptiPlex GX270 PC Desktop

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