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Thread: HELP: Desperately Seeking Assistance on my ASUS P5W DH with 4GB memory.

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    HELP: Desperately Seeking Assistance on my ASUS P5W DH with 4GB memory.

    Desperately Seeking Assistance on my ASUS P5W DH with 4GB memory.

    I’ve just built (or am in the process as some parts are still on order) my 1st Custom PC for 3 years. I am technical enough having worked in IT for 15 yrs to know the general pitfalls of making my own machine. This is the 1st machine I have built in regards to wanting to do some serious overclocking with it. Everything at the moment is running at Stock.

    I have 4 GB ((2 x G.Skill 2GB DDR2 HZ PC2-6400 (2x1GB) CAS4 Dual Channel Kit (F2-6400PHU2-2GBHZ)) trying to be installed into ASUS P5W DH Deluxe i975X, S775, PCI. It will boot up with 2GB fine and even 3 GB but as soon as the 4th stick is installed it fails to POST.

    I can arrange the sticks in different slots in the board. Memtest runs fine and tells me the actual individual sticks are fine. With 2GB in (I have tried all 4 sticks in various quantities) I can run Prime95 and the Orthos Prime Beta for multiple hours without any problem. I have left the mem timings at SPD and have also tried them at 4-4-4-12 and 5-5-5-15 at both 2.0 and 2.1 v which is the proper volts listed on the box.

    Is there a compatibility issue between these sticks? They are all running default there is no over clocking going on in the board? The memory a week old and whatever 2 sticks of ram I use the machine boots up fine it just won’t with all 4 sticks in it. The fans turn on but the machine does not post any bios information or video signal as if it won’t go past the point of power being provided and nothing else.

    I also know XP can not use more than 3GB of ram but I am also testing the VISTA Beta's which will also be running 64Bit OS so will be able to address the full 4 GB of ram

    Full Spec of the Machine or will be.

    Conroe E6600 2.4 (Installed)
    Tuniq Tower120 (Installed with AS5)
    ASUS P5W DH (installed running 1305)
    4G of DDR2 HZ PC2-6400 (2x1GB) (installed – Will only Post with 2 GB or 3 GB)
    X1950 HIS (On-Preorder) Running a Matrox MGA PCI graphics card as a temp.
    2 x WD150 Raptors in Raid 0 (Installed with Zalman HD coolers)
    Samsung DVD drive (Installed)
    Antec P180B (Installed – 3 x Sharkoon SilentX 120mm 1000 fans arriving Monday)
    Seasonic M12-600 (arrives Monday using a loaned Seasonic S12 at the mo)
    24 inch Samsung 244T (installed)

    Any help would be appreciated I have a tech support call open with Gskill at the moment but am having trouble even getting to the PoS Asus website)

    Regards

    Khalsa

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    Senior Member ExceededGoku's Avatar
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    its got to eb the RAM timings causing the problem, best thing to do would be to put all timings on the loosest the bios will allow then put all 4 sticks in then work your way down, tedious yes but it gets the result, hopefully!
    Core 2 Duo E6600 @ 3.2Ghz (400Mhzx8) 1.52V (set in bios, 1.47v real) | 4GB GeIL PC6400 4-4-4-12 | Gigabyte DQ6 @ 1600Mhz | HD2900XT 1GB | Enermax Infiniti 720W | Silverstone TJ07-B with custom watercooling | BenQ FP241WZ
    3dmark05 - 13140 | 3dmark06 - 6698 | SuperPi 1M - 15s

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    Nothing runs like a Deere cotswoldcs's Avatar
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    • cotswoldcs's system
      • Motherboard:
      • Asus P4C800-E Deluxe
      • CPU:
      • Pentium 4 3.0Ghz Northwood (@3.4Ghz on water)
      • Memory:
      • 1.5Gb Corsair TwinX PC3200/PC3700
      • Storage:
      • 150Gb Raptor
      • Graphics card(s):
      • XFX 6600GT 128Mb (w waterblock)
      • PSU:
      • Seasonic S12-380
      • Case:
      • Antec Sonata I
      • Monitor(s):
      • 3 x Iiyama 19" LCD (5:4) on Comrac Tripple Mount
      • Internet:
      • PlusNet 1.6Mb ADSL
    Could it be a power issue - you have a lot of high end stuff installed. What rating is that Seasonic PSU that you are using???

    Check out the PSU calculator at http://extreme.outervision.com/psucalculator.jsp


    It could be a BIOS issue - have you checked with Asus' website?
    It can't be an OS issue as your problem exists before the OS loads

    ...or it could be something completely different.


    Nice system by the way!

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