Install ram black levers

There is no DIMM requrement, ignore that none-sense. Every other slot is a dual channel grouping. Slots next to each other will result in Single Channel only. My first thought when reading the OP was a dead slot, and that's what it sounds like after reading on. If it's just one, simply put your two modules in the two slots of the other color i. Just want to clear up one thing to avoid any confusion: DIMM is the memory module that's what the MM stand for , not the slot. So you're testing the slots, not the DIMMs.

Also, if one of the slots is bad and causing you to get a blank screen, you're almost certainly going to notice this right away, so I wouldn't waste time running an extended memory test on each slot.

I'd just put a stick in the first slot and see if it boots and gives you video. If it does, move on to the next, and so on. If all of them work, then just pick two of the same color to install your memory into and, if it still boots, THEN run the test. No sense spending hours testing a slot only to find that as soon as you switch to the next one you get no video. Sorry, yes if you do not understand these tech terms, refer to your Motherboard Manual.

Pick the memory that has the best compromise between an appearance you like and a price you can stomach. First, shut down your computer and unplug all of the cables connected to it. Then remove the side of the computer case so you can access the motherboard. Start by toggling the plastic retention clips at either end of the memory slots so you can pull out the old RAM. Make sure the memory module is correctly oriented: The notch in the bottom edge of the RAM must match up with the rise in the memory slot.

Placing RAM in the incorrect slots could result in some performance degradation. Make sure the notch in the bottom edge of your RAM modules match up with the rises in the memory channel on your motherboard. Your computer should start normally.

If your computer displays the self-test during the startup, then you can verify that the RAM has been installed correctly. If not, you can verify that the RAM was installed once Windows starts. Power down your PC and re-open it. Then, remove and reseat the RAM. Make sure it clicks firmly into place and then try again. Check the RAM in Windows. Your RAM will be listed in the System section or at the bottom of the window.

Operating systems calculate memory differently and some computers dedicate a certain amount of RAM to specific functions e. All rights reserved. This image may not be used by other entities without the express written consent of wikiHow, Inc. Run a RAM test if there are problems. It may take a while to run, but will discover any errors and display how much is installed. To run the tool, press the Windows key on the keyboard and type memory into the search bar. Click Windows Memory Diagnostic to launch the tool, and then click Restart now and check for problems to run diagnostics.

Method 2. Purchase RAM for your iMac. The type of RAM you need for your iMac depends on the model. Shut down your iMac. Before you get started, fully power down your iMac and disconnect its power cord from the wall. If any other peripherals are connected to your iMac, disconnect those as well. Because the inner components can run quite hot, Apple recommends waiting at least ten minutes before installing RAM in your iMac.

Lay the iMac flat on a clean soft towel. To protect the monitor, lay a clean cloth down on a flat surface before laying your iMac down monitor-side-down. Open your iMac's memory access door. The steps are different depending on the model: 27" and 21" models or later : Press the small gray button just above the power port to open the memory compartment door.

Lift the door off of the back of the monitor and set it aside. Then, push the two levers outward to the sides to release the memory cage, and pull the levers toward you to see the RAM slots. Set it aside once removed. Then, press the two ejector clips on either edge of the access door outward to the sides. Other models: Use a Philips head screwdriver to remove the screw at the center of the memory access door. The door is on the bottom edge of the monitor.

Remove the door completely and set it aside. Untuck the tabs in the memory compartment so they are visible. It should easily come out of the slot. Make sure to note the direction of the notch so you know how to insert the new RAM.

Other models: Gently pull the tab toward you to eject memory that's currently installed. Insert the new RAM. Again, it's a little different depending on the model: 27" and 21" models or later : Align the RAM over the slot with the notch pointing downward.

It will line up with the notch inside the slot. Press downward until the RAM clicks into place. Use your thumbs to press the RAM in until you feel a slight click. Press both ejector clips back inward to lock the RAM into place. Other models: Slide the RAM into the slot with the notch pointing upward toward the top of the monitor. When you push it in far enough, you'll feel a slight click. Replace the memory access door. If your model has plastic tabs that you untucked, tuck them back into place first.

Then reattach the door or cover just as you removed it. If you pressed a button to unlock the door, you don't have to press the button to put it back on.

Bring your iMac upright and power it back on. When your iMac turns back on, it will self-test and detect the new RAM automatically. Method 3. Find out what type of RAM is required for your laptop computer. RAM comes in a variety of models and speeds. The type of RAM you can get is dependent on your computer. Power down and unplug your notebook. Start by saving any work you have open, and then shut down your computer normally. If any external cables are attached, remove them as well.

It's also a good idea to press and hold the power button for about 5 seconds to discharge residual power. If you're using a Mac, click the Apple menu at the top-left corner and select Shut Down.

Place your laptop upside-down on a flat surface. The bottom of your laptop should be facing upward. Ground yourself. Before opening any panels on your laptop, make sure you are properly grounded to prevent damaging your components. This can be tricky because the process is so different depending on your laptop.

Your owner's manual or manufacturer's website would be the best places to check to find out how exactly to access your laptop's RAM slots. Check how many slots you have.

There are usually a few different panels, so look for the one with the memory icon, or check you manual. Most notebooks only have one or two RAM slots. Higher-end notebooks may have more. You will need a very small Phillips-head screwdriver in order to remove the panel if the panel is required to remove.

Determine if your RAM needs to be installed in pairs. When it is required, it is because the pairs are the same size and timings and meant to run together as dual-channel. If you're just installing one stick of RAM or RAM with different sizes or timings, you don't have to have a matched pair.

If you are replacing old RAM, remove it by releasing any clamps on the side of the socket. You can release the clamps by pressing down on them or pushing them both outward in opposite directions.