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Thread: Impossible install 6gb ram on my P35-DS3R rev.2




  1. #1
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    Default Impossible install 6gb ram on my P35-DS3R rev.2

    Hi to all

    in these days im getting crazy....im trying to install 6gb ram Corsair Dominator 1066 timing 5-5-5-15 but the pc always reboot or never start again. i thought was my power supply but today after i installed the new one (750w high quality) still problem.

    i have 2x2gb corsair dominator and 2x1gb corsair domintar. they have same timing, same frequency and same timings...the only difference is the size of the memory.

    ive changed the volt to 2.10 and my S.O. is windows 7 64 bit and i have the last bios version: F13 (june 2009)

    please help me!!! thx in advanced
    Last edited by roger82; 10-22-2009 at 05:46 AM.

  2. #2
    Chike is offline Senior Member
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    Default Re: Impossible install 6gb ram on my P35-DS3R rev.2

    Not sure at all this is a valid configuration for P35, what does the manual says?

  3. #3
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    Default Re: Impossible install 6gb ram on my P35-DS3R rev.2

    valid configuration about what? the ram? the specifications say thay i can install until 8gb of ram...how i can install 8 gb if i get trouble already with 6gb?

    this is my motherboard:

    GIGABYTE - Product - Motherboard - Specification - GA-P35-DS3R (rev. 2.0)

    ps. thx a lot for reply me

  4. #4
    Chike is offline Senior Member
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    Default Re: Impossible install 6gb ram on my P35-DS3R rev.2

    I meant different memory modules sizes, but I see in the manual it is said it's possible though recommended to use all of the same timings size and manufacturer.
    Try the Following:
    With one stick ofe memory (or 2 that know to work) load optimized defaults, save reboot and enter BIOS MIT,
    Set the timings manually to the specified value, DDR2 OverVoltage +0.3 and MCH OverVoltage +0.1, save reboot, shut the computer down and add the 3 (or 2) other modules.
    If this doesn't work, try memory multiplier that result in DDR-800 (2.40B, 3.00A, or 4.00C depend on your CPU default buss speed) and try again.

    Please add your system spec in your fotum signature along with a link to ram specs.

  5. #5
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    Default Re: Impossible install 6gb ram on my P35-DS3R rev.2

    so best choice is 4gb or 8gb?

    my pc is:

    - E8500
    - 4gb Corsair Dominator timing 5-5-5-15 at 1000 mhz (at 1066 the ps became instable)
    - power supply thermaltake w0116 750w
    - nvidia 7900 gtx
    - windows 7 ultimate 64 bit
    - hitachi 320 gb 7600 rmp

    i already set the volt of the ram at +0.3 (2.10v)

    ps. ive tried in these days using the 2x1 or the 2x2 and everything works fine (the 2x1 work fine at 1066 and the 2x2 at 1000) but if i install all the 6 gb togheter even at 800 or 667 the pc reboot all the time.

  6. #6
    Chike is offline Senior Member
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    Default Re: Impossible install 6gb ram on my P35-DS3R rev.2

    It is what they say, ppl have trouble with same modules often too.
    I gues you'd have to settle for DDR-800, perhaps with lower timings.
    Did you tried both pairs in their designated slots?

  7. #7
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    Default Re: Impossible install 6gb ram on my P35-DS3R rev.2

    but ITS NOT HONEST from gigabyte say that this motherboard support 8gb if maybe support it but at 667 or at 800 with super high timings...im so disappointed....im thinking to sell this mobo and buy a new one but different brand.....i love the gigabyte design but if they says support 8gb people think 8gb at 1066 with - in this case - corsair timing.

    anyway about the memory installing i have 4 slots....in yellow slots i install the 2x1 and in the red slots i install 2x2.....

    so in general in not enough have same manufacturer, timing and frequency but also size? i though the yellow slot is indipendent from the red slot

  8. #8
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    Default Re: Impossible install 6gb ram on my P35-DS3R rev.2

    Follow the suggestions put forward by Chike exactly. You may be able to get these sticks all working, and in dual channel mode.

    Bear in mind that you may need to reduce the RAM frequency, as said. Also remember that you MAY never get all 6GB working. Not only are the RAM sticks different capacities, they may also be different densities (single sided and double sided). The modules may not even contain the same kind of IC's (chips). Even though they are all Dominator, Corsair change the chips they use from time to time in the same brand and model of product.

    Look on the stickers on the side of the modules. Look for an entry labeled "V" or "Version", usually in the format of "x.y" eg "V 4.1" or "Version 3.2" etc. If the vrsion number of the 1GB and the 2GB modules happen to match, then you're very lucky. More than likely they won't.

    so best choice is 4gb or 8gb?
    IMO 4GB. If you do alot of 3D rendering (not gaming), video / audio editing/transcoding or work with huge .raw digital images and want to set up a large RAM drive as a "Scratch folder" for Photoshop, then 8GB is too much.

    General computing and 3D gaming will work just as well on 4GB of RAM, and 4GB is easier to set up than either 6GB or 8GB.

    If Chikes suggestions and help don't get your full 6GB working, I recommend eBaying the 2x1GB kit and sticking with 4GB, it's plenty.
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  9. #9
    Chike is offline Senior Member
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    Default Re: Impossible install 6gb ram on my P35-DS3R rev.2

    OK 1st thing 1st.
    Have you tried one of the pairs in slots 2 & 4 and the other in slots 1 & 3? where you intend to use them? have you tried swaping the pair between different color slots?

    You are mixing memory with different speed so a compromise is a must.

    Have you tried my suggestions? (skip the 1066 settings)

  10. #10
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    Default Re: Impossible install 6gb ram on my P35-DS3R rev.2

    Make sure the larger sticks go in first the smaller ones last - not the other way round!
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