RAM and slots are both working, but it doesn't when it's put together


  1. up69
    Posts : 18
    Windows 7 Ultimate x86
       New #1

    RAM and slots are both working, but it doesn't when it's put together


    I have a laptop which can support up to 2 GB of dual-channel DDR3 1066 MHz memory, upgradeable to 4 GB using two soDIMM modules; I have both of the RAM(same brand), but here is where problems begin.


    The issue right now is that I've tested both of the RAM on both of the RAM slot on the board, both worked like a charm separately, meaning no freezes and BSOD, but when the RAM are put together, I get freezes and BSODs; What could be the problem?

    I'm currently running on 2GB of DDR3 memory right now.

    RAM: 2gb 2rx8 pc3-8500s-07-10-f2 (Samsung)

    Laptop: Gateway p79 series.
    Gateway Support - Specifications

    Windows 7 Ultimate x86
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  3. Night Hawk
    Posts : 8,375
    W7 Ultimate x64/W10 Pro x64/W11 Pro Triple Boot - Main PC W7 Remote PC Micro ATX W7 Pro x64/W11 Pro
       New #2

    Something's been mislabeled! That can happen when memory ordered in bulk from the manufacturer comes in with a few mislabeled dimms. A performance dimm seeing different timings and voltage requirements may get mixed in with the typical standard type memory premade laptops and desktops come with.

    One way to find out if you have mismatched dimms would be running the System Info for Windows tool while only one dimm was installed where you look under hardwares at the memory item to see what is shown for each one. The next is replacing the pair for a totally fresh set of matched replacement memory in case one dimm is bad.
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  4. up69
    Posts : 18
    Windows 7 Ultimate x86
    Thread Starter
       New #3

    Night Hawk said:
    Something's been mislabeled! That can happen when memory ordered in bulk from the manufacturer comes in with a few mislabeled dimms. A performance dimm seeing different timings and voltage requirements may get mixed in with the typical standard type memory premade laptops and desktops come with.

    One way to find out if you have mismatched dimms would be running the System Info for Windows tool while only one dimm was installed where you look under hardwares at the memory item to see what is shown for each one. The next is replacing the pair for a totally fresh set of matched replacement memory in case one dimm is bad.
    I've just compared the two and the codes are the same in System Information. I just tried installing both of the memory modules back into the laptop, and surprisingly all is well. So i fired up some applications and the system was eating up 2.5GB of memory for 30 minutes, no BSOD or freeze as of yet.

    Hopefully it'll stay that way.
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  6. Night Hawk
    Posts : 8,375
    W7 Ultimate x64/W10 Pro x64/W11 Pro Triple Boot - Main PC W7 Remote PC Micro ATX W7 Pro x64/W11 Pro
       New #4

    Hopefully all is well for you there! It may have simply been due to the need of reseating the dimms since they weren't going down fully. When going to reseat each one to get the information you were performing two tasks at the same time.
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  7. up69
    Posts : 18
    Windows 7 Ultimate x86
    Thread Starter
       New #5

    Night Hawk said:
    Hopefully all is well for you there! It may have simply been due to the need of reseating the dimms since they weren't going down fully. When going to reseat each one to get the information you were performing two tasks at the same time.
    Guess my luck ran out

    The 4GB of DDR3 1066 memory are "fighting" again. I've took one of them out and its working on 2GB now. Think I would need a new BIOS update?

    BIOS Type: Phoenix
    BIOS Date: June 8th 2009
    BIOS ID: 79.03.00-None
    BIOS OEM: 79.03.00
    Chipset:Intel 2A40 rev 7
    SuperIO: Unknow
    Manufacturer: Gateway
    Motherboard: P-79

    If so where may I find this BIOS update?
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  8. karlsnooks
    Posts : 10,200
    MS Windows 7 Ultimate SP1 64-bit
       New #6

    Memtest86+ - Advanced Memory Diagnostic Tool

    Your question, etc are amazing similar to another thread.
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  10. Night Hawk
    Posts : 8,375
    W7 Ultimate x64/W10 Pro x64/W11 Pro Triple Boot - Main PC W7 Remote PC Micro ATX W7 Pro x64/W11 Pro
       New #7

    Bad dimm or mismatch? A good long run of the 9 stress tests seen with memtest over a few hours will show if errors are pointing out a defect with one of the dimms. Run that on each dimm separately however not when both are in to isolate if found bad the dimm with a problem.

    I still tend to believe that there's a mismatch being seen there however since each dimm by itself runs normally without any problems being seen. This is why I had to mention the idea of one dimm of a different type like a mix of standard with performance memory may have been seen where the two simply won't work together but no faults can be found with either.
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  11. up69
    Posts : 18
    Windows 7 Ultimate x86
    Thread Starter
       New #8

    I've followed How to format a USB memory key that tutorial, and the three files are not showing in my USB.
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  12. karlsnooks
    Posts : 10,200
    MS Windows 7 Ultimate SP1 64-bit
       New #9

    completely different problem and deserves its own thread.
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