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How much RAM can my MotherBoard Hold

Hi i have a prebuilt HPDC 7800 CMT(Convertible MiniTower) now originally this PC had Windows Vista 32bit which hold only 4GB,i recently upgraded PC to Core 2 Quad q6600,Windows 764bit, now looking at my PC specifications it shows my Ram is Expandable up to 8GB,

question is since im on a 64bit OS can i have More then 8? My Motherboard has 4DDR2 Ram Slots
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  1. If the system says 8 gigabytes, Then chances are that is the limit.

    When the board was made sticks had not made it to 4/8*/16* gigabytes a stick yet.

    I think most Core2 day boards stopped at 8 gigabytes.
  2. Lot's of luck finding ddr2 sims bigger than 2 gig! (Special server sims which prob wouldn't work) You are limited to 8gig with 4 2gig sims.
  3. Best answer
    Most DDR2 boards were limited to 8GB. A 32 bit OS can only see 4GB. By moving to a 64 bit OS you can use more than 4GB but the 8GB limit is with your motherboard and not the OS. You can use 4 x 2GB sticks.
  4. anort3 said:
    Most DDR2 boards were limited to 8GB. A 32 bit OS can only see 4GB. By moving to a 64 bit OS you can use more than 4GB but the 8GB limit is with your motherboard and not the OS. You can use 4 x 2GB sticks.
    ok thanks for answering my question i was really confused about this thanks for you guys answering
  5. Glad we could help :)
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