Question about Gateway 835GM (835GH) PC Desktop

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RAM Recognition 835GM PC Desktop

I installed 2 new 1024 mb DDR2 memory modules in my computer in Slot O.
I tried to reinstall the 2 old 512 mb DDR2 memory modules in Slot 1. The computer then would not recognize the 2- 512 mb. memory modules.

If I switch the 2 - 512 mb in Slot 0 and the 2- 1024 mb in Slot 1, it will not recognize the 1024 mb memory.

Do all 4 memory modules have to be the same size in order for the computer to recognize them?

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  • Gateway Master
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The memory is dual channel, so you have to use matched memory for it to work 1gig in each slot if possible, check the 1 gigs and 512's to see if they run at the same bus speed, if they are not matched there is your problem try a gig and a 512 in slot 0 to see if it picks the memory up, also there is sometimes an option in the bios to dissable dual mode

Posted on Nov 15, 2008

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Are all memory chips alike? What type do I need to add to this model? I now have 512, want to at least double.


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es187_0.png
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Hi,

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Regards.

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How to install memory for T3642 eMachine


eMachines T3642 Computer takes the PC2-5300 DDR2 SDRAM DIMMs. Supports Dual Channel DDR2. Memory Type, and comes installed with 1.0 GB = 512 MB (removable) + 512 MB (removable) of Memory. You can upgrade your eMachines eMachines T3642 Computer to up to a maximum of 2.0 GB Memory, the system has 2 sockets to install Memory, already with 1.0 GB = 512 MB (removable) + 512 MB (removable) standard Memory installed. For best Computer performance use the maximum amount of allowed Memory per slot for your Computer.


INSTALLATION PROCEDURE
1. Place the computer power switch in the "off " position and disconnect the AC power cord.
2. Remove the computer top cover following the instructions in the model-specific owner manual.
3. Before touching any electronic components, make sure you first touch an unpainted, grounded metal object to discharge any static electricity stored on your clothing or body.
4. Locate the memory expansion sockets on the computer motherboard. If all the sockets are full, remove smaller capacity modules to allow room for higher capacity modules.
5. The ejector tabs shown in the illustration are used to remove a module. By pushing outward on the ejector tabs, the module will pop-up from the socket and it can then be removed.
6. Handle your new module carefully; do not flex or bend the module. Always grasp the module by its edges.
7. For most installations, DDR modules can be installed in any available expansion slot. Other installations may require the memory to be installed in a particular sequence based on the modules capacity. Check your owner manual to determine the correct installation sequence for your configuration.
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    10. Turn on the computer and follow the instructions in your computer owner manual that describe the steps necessary to allow your computer to recognize the newly installed memory.
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    RAM increment


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    Install more memory, install new dvd/cd drives


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    For complete info go to: Crucial for Gateway 835GM

    You can also go to www.crucial.com and run their scan feature. It's safe and works well.

    Note that you should install memory in matched pairs, so if you should buy 2 more 512MB modules, make sure they are the same kind/type. Also realize that should you upgrade to 4GB of RAM, unless you have a 64-bit OS, it may not recognize all 4GB.


    As for the drives, any "big box" electronics store will have the drives you need/want. Even Wal-Mart has a decent selection of internal drives. The drives should work with no problem. Gateway and other companies put fancy bezels on the front, but they have buttons and hinged doors that will allow most drives to be used. One thing you need to make sure of is what type of drive you need. That is, what type of controller is used, either IDE or the newer SATA. If you are not sure, comment back and i will try to research it further.

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    RAM NOT DETECTING


    I had the same issue on this board where it came with a Samsung 512 MB 533 MHz PC2-4200 DDR2 DIMM. I put in a 1 GB Kingston with the same specs (533 MHz PC2-4200 DDR2) and it would not recongize the Samsung anymore with the system reading as 1 GB of RAM instead of 1.5 GB. Tried every configuration and would only see the Kingston. It would only see the Samsung if I pulled out the Kingston regarless of the slots I use. So, I just bought the exact same make/model of Kingston and it recognized that fine and the system now has 2 GB of memory (max this board allows). And, I had already installed the latest BIOS for this board from Intel before doing all this so wasn't an old BIOS. I'm figuring the board didn't like something about the Samsung memory (speed, module configuration, etc.) that made it not play nice with the Kingston. If interested I bought the DM8400A/1G Kingston modules. And, this board appears not to support dual channel memory. Only has channel A, slots 0 and 1, and I read need two channels to support dual channel (seems obvious). Boards that supports dual channel memory normally have 4 memory slots, two for channel A and two for channel B, then put in matching modules in slot 0 for channel A and B and have dual channel memory access. And if want more ram, then matching modules in slot 1 for channel A and B.

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