How To Activate Second Ram Slot?

How To Activate Second Ram Slot
Resolving The Problem –


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The IBM eServer xSeries 305 type 8673 has the DIMM memory slots set to disabled by default after a memory upgrade has been performed. You may not see the new memory in POST.

Affected configurations

The system may be any of the following IBM eServer servers:

IBM eServer xSeries 305, type 8673, any model

The BIOS level affected is:



None. System working as designed.



  • Install the DIMM memory upgrades into empty DIMM memory slots.
  • Boot the machine and press F1 to get into BIOS, then select Advanced Settings, then Memory Settings, and change the corresponding DIMM slots option to “Row is enabled”.
  • Save the BIOS settings and reboot.
  • Additional information

    The xSeries 305 type 8673 BIOS SPEC defines the default setting for empty DIMM memory slots as “disabled”. When DIMM upgrades are added, users must manually select BIOS, then Advanced Settings, then Memory Settings and enable the corresponding DIMM slots.

    Why is my 2nd RAM slot not working?

    It is commonly called temporary memory and is extremely important. The RAM slot may not be working because of an incompatible RAM, a broken slot, bent pins in the slot, a faulty motherboard or a bad RAM card. If your RAM is not working after putting it in the RAM slot, do a test to rule out the cause.

    Can I put RAM in second slot?

    Can You Put Ram In Any Slot? – Technically, yes, you can install RAM in any one of the four slots available on your motherboard. As long as you’ve correctly plugged in the RAM and the slot is not defective, the computer will recognize the installed module(s).

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    However, doing so means the RAM is not working to its full potential, especially if you’ve installed multiple modules. This setup was not always possible in older computers, and the computer would not boot if the user plugged RAM into the wrong slot. The same thing can happen with today’s computers when you try to use incompatible RAM.

    Therefore, it’s important to always refer to your motherboard’s documentation to know what RAM types and speeds are compatible.

    How do you check if all RAM slots are working?

    Most computer motherboards have between two and four slots for RAM, and if one of these slots fails, your computer won’t see the RAM stick installed in it. Testing your motherboard’s RAM slots requires a working RAM stick and some patience as you check each slot through trial and error.

    Check your installed RAM for possible errors. Before opening your tower and handling the memory sticks, use Windows’ built-in memory diagnostic tool to check your RAM. In the Start menu, type “mdsched.exe” with no quotes and press Enter. Select whether you want to restart and check the memory now, or check next time you boot. Check the results when it runs, and if this test returns no errors, you’ve ruled out your RAM as the cause of your problem. Open your computer and check the slots through trial and error. The only way to check your motherboard’s memory slots is to place a working RAM stick into each one and see if your machine boots properly. Remove all RAM sticks and place one you know is functional into the first slot on your motherboard. Boot your computer. If it starts without problems, you know that stick and that slot are good. Power down and move the stick to the next slot. Repeat this process until you find the slot that causes a boot failure. You may want to try your other RAM sticks in the same process, starting with the first slot again. Boot with each remaining RAM in the suspected bad slot to verify that the slot has indeed failed. This also verifies that the remaining RAM is good and not adding to your computer’s memory problems.

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    Is dual-channel RAM automatic?

    Dual channel memory is automatic and does not need to be activated manually by the user.

    Can all RAM run in dual-channel?

    Any ram will work in dual channel, even different models from different brands (don’t pair a stick of ddr3 with ddr4 and vise-versa, they have different physical connectors etc). To answer the first part of your question- yes, you can.

    How do I enable dual-channel RAM on my laptop?

    It’s not a feature that you can enable. You have to put 2 identical memory to 2 slots and voila, if your cpu is dual channel, you’ll get a dual channel computer.

    How do you activate RAM?

    Installing the RAM – Most people can figure out how to install RAM sticks into their computer. If you can’t, there’s a tutorial here, The short version here is that you want to make sure everything is off and then install the sticks in a way that lets you take advantage of the multiple channels on offer. How To Activate Second Ram Slot Credit: ID 38303048 © Katarzyna Bialasiewicz | Your motherboard manual will usually tell you which slots are which while the spec sheet of your CPU usually documents the maximum RAM capacity and channels that your PC will be able to support.

    Is it better to have 2 slots of RAM or 4?

    Why Should You Consider Sticking With a 2 RAM Stick Setup? – Well, let’s start with the obvious points:

    2 Sticks of RAM are generally less expensive than 4 Sticks. It’s easier to push higher memory speeds and lower CAS latencies with fewer sticks. Dual Channel support is a guarantee; Quad Channel support is not. You can add more Modules at a later date if you find you need higher RAM capacity ( read this first )

    The main benefits of going with a 4 Stick RAM Setup are increased capacity and, if you have a Quad Channel board, a big boost to memory bandwidth. How To Activate Second Ram Slot Unfortunately, the raw boost in memory bandwidth from moving to Quad Channel doesn’t seem to do much for the majority of applications, and even for gaming, you aren’t seeing a major performance gain unless you’re CPU-bound. (And with today’s CPUs: you almost always aren’t.) For the majority of memory-bound scenarios, memory capacity is what makes the most difference, followed by memory speed- but even then, these gains can vary greatly depending on platform and application.

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    For the majority of users, especially if you aren’t using a Ryzen 5000 processor, you should be served perfectly fine by sticking with 2 RAM sticks. If you are using a Ryzen processor, you will see a more meaningful improvement by moving up to 4 RAM sticks, but Ryzen processors are also heavily impacted by RAM speed and latency, which are harder to push with 4 Stick configurations.

    To learn more about how RAM speed impacts your performance, consider looking over my guide to DRAM Frequency.

    How do you fix RAM slots?

    Can you fix a broken RAM slot? – No, you cannot fix a broken RAM slot. You can only replace it with a working RAM slot. This is because the RAM slots, especially those located in the motherboard of the computer, have a network of delicate wiring and soldering in and around the space. This wiring may get damaged very easily when you try to replace the broken RAM slot.

    Can RAM slots be damaged?

    Anything, including the RAM slots can be broken. However, the system display is not related to RAM at all.

    Why is only part of my RAM available?

    Check if your RAM is connected properly – Before you blame your PC for only using half the RAM available, check your RAM physically if it is connected properly on your motherboard’s DIMM slots. Use a trial-and-error if you see that it is properly connected.

    This is to check if the RAM is faulty or not. Attach one RAM at a time and boot the PC up. Open the task manager and check your memory usage. Just open the performance tab and check the memory capacity and usage if it aligns with the RAM you just connected to your PC. Do this for each of your RAM sticks by turning off the computer and reconnecting the other RAM stick after booting.

    Generally, you might want to do this option last since you might be able to fix your memory with the other methods especially if you are unfamiliar with building PCs.