Enable 2nd Ram Slot
Is there a program that I can use to test the slots? Or maybe Im doing something wrong?
Mobo: http://www.newegg.com/product/product.aspx?item=N82E16813131232
Ram: http://www.ocztechnology.com/produc..._6400_vista_performance_gold_4gb_dual_channel
So I have 16GB RAM. After upgrading to Windows 10 however it says I only have 8GB. When I look in task manager it seems to know I have 16GB but for some reason only using 8Gb of it and for slots used it says 2 of 4 when I'm using all 4 RAM slots. I'm not techy at all but if somebody could explain to me why this is it would be appreciated. If it is something like just a broken RAM stick then. OOBE, 4 GB RAM installed on the PC by default. I am looking to upgrade the RAM to 16GB. Before doing that, I wanted to check both the RAM slots, (motherboard has only 2 RAM slots.) I placed the 4GB RAM on the secondary slot and the PC did not boot or detect RAM. RAM Slots on a Laptop. RAM slots on a laptop are significantly different than on a desktop PC. Because the form factor of a laptop precludes the desktop orientation where the memory is perpendicular to the motherboard, the RAM slides into slots that allow it to be parallel to the motherboard once installed.
There are two RAM module slots in the Toughbook CF-31, but if you have a first generation (MK1) unit, the second slot is more difficult to access and the process is a bit more involved. Since we used a CF-31 MK1 for this tutorial, we'll focus only on the upgrade slot that can be accessed easily. However, if you are upgrading a later model CF-31, both RAM slots should be accessible from the same panel.
Choosing the right type of RAM
How To Enable All Ram
There are two RAM module slots in the CF-31, but the second one is more difficult to access and the process is a bit more involved. For this tutorial, we'll focus on the upgrade slot that can be accessed easily. Installing a RAM module is quick and easy. All you'll need is a Phillips-head screwdriver and a stick of RAM. It has 8 DIMM slots and supports up to 128 MB of DDR4-2133 RAM and has 4-channel memory architecture. Its latest BIOS update version is F23 and is designed to improve DDR compatibility. Pages 16 - 17 of that motherboard's manual explains everything about installing RAM modules in it. View attachment 258772 View attachment 258773.
The type of RAM module you will need to buy depends on the MK, or generation, of your Toughbook CF-31.
The RAM module specifications for the CF-31 MK1 are as follows: 204 pins, SO-DIMM, 1.5 V, DDR3 SDRAM with a speed of PC3-10600. You can install up to 4GB of RAM per slot (8GB total, if you access the secondary slot, which we aren't doing in this guide).
The CF-31 MK2 and MK3 can use the same RAM as an MK1 model, but also support the faster PC3-12800 SDRAM. Additionally, you can install up to 8GB per slot.
The CF-31 MK4 and MK5 models require PC3-12800 SDRAM and will not work with the slower 10600 modules. Like the MK2 and MK3, these models support up to 8GB of memory per slot.
Installing the RAM
Installing the RAM module is quick and easy. All you'll need is a Phillips-head screwdriver.
Step one: power down completely.
How To Enable Memory Slot
Shut down your CF-31 completely (don't put it to sleep; don't put it in hibernate), unplug the AC adapter and remove the battery pack (the door for which is located on the left side of the laptop). If you have a secondary battery pack in the multimedia pocket, remove that as well. It's also a good idea to take static electricity precautions.
Step two: remove the panel on the bottom of the unit.
Turn the laptop over.
There are six screws to unscrew.
Voila!
Step three: if there is a RAM module in there, remove it.
If there isn't a RAM module in there (like in the picture above), then you can skip this step. If there is a module in there that you want to replace, you'll see that there are two clips holding it in.
Gently push the clips outward to release the module, then slide it out.
Step four: insert upgrade RAM module.
You'll notice that there's a bar in the slot that corresponds with a notch in the RAM module. This ensures that you correctly orient the module (it will only go in one way, so don't force it).
Insert your RAM in the slot. (Do it gently; don't RAM it in! Har har har.)
Push the module down just like you'd close a lid. The clips will automatically latch on when it's all the way down.
Step five: finishing up.
Screw the panel cover back on, insert the battery, plug it in and boot it up. You're done.