Unusable RAM slot?

[awezmo]

Hello, I have a laptop (of which I've not been able to find the user's manual and it only came with a paper with instructions on how to turn it on) that I have two Identical 4GB RAM sticks installed on the only two slots available and yet task manager and CPU-Z only show 4GB available of one slot only, both RAM sticks are perfectly clean and fine physically (or so I think), also it shows single channel on CPU-Z (which I believe both sticks must be identical for it to work and they are as I said), I don't understand that much about the matter apart from a few things I've read on forums and please be patient if I missed a post that already asked a similar question, thank you.

 

Edit: I was being silly, I didn't push either stick on the second slot all the way in out of fear of breaking it, I pushed it a bit more and now it works.

 

[Poinkachu]

3 minutes ago, awezmo said:

Hello, I have a laptop (of which I've not been able to find the user's manual and it only came with a paper with instructions on how to turn it on) that I have two Identical 4GB RAM sticks installed on the only two slots available and yet task manager and CPU-Z only show 4GB available of one slot only, both RAM sticks are perfectly clean and fine physically (or so I think), also it shows single channel on CPU-Z (which I believe both sticks must be identical for it to work and they are as I said), I don't understand that much about the matter apart from a few things I've read on forums and please be patient if I missed a post that already asked a similar question, thank you.

Tried using different slot yet ?

[tkitch]

Step 1:  Try one stick at a time, see if it works with each stick.  
(One stick may be bad)
Step 2: Look up the laptop model, and see if it has a RAM Limitation.

[awezmo]

3 minutes ago, Poinkachu said:

Tried using different slot yet ?

Yes, I forgot to add that I've tried switching the order in which the sticks were installed, the problem persists unfortunately.

[Poinkachu]

30 minutes ago, awezmo said:

Yes, I forgot to add that I've tried switching the order in which the sticks were installed, the problem persists unfortunately.

Whoops, sorry, I somehow didn't notice you typed "Laptop".
Try what @tkitch said, test the new stick alone, unless your laptop came with a soldered ram.

[awezmo]

1 hour ago, tkitch said:

Step 1:  Try one stick at a time, see if it works with each stick.  
(One stick may be bad)
Step 2: Look up the laptop model, and see if it has a RAM Limitation.

The manufacturer only shows the same paper I've got as the user's manual with no information anywhere about RAM limitation, however I tried booting the laptop using only one stick on each slot, it has no problem with either of them on one of them but it seems the second slot doesn't work with either of them, what can I do?

[tkitch]

4 minutes ago, awezmo said:

The manufacturer only shows the same paper I've got as the user's manual with no information anywhere about RAM limitation, however I tried booting the laptop using only one stick on each slot, it has no problem with either of them on one of them but it seems the second slot doesn't work with either of them, what can I do?

if the second slot doesn't like either stick, and both sticks work in the first?

Unfortunately it's probably a bad RAM slot  and there's very little to do about that. 

[awezmo]

35 minutes ago, tkitch said:

if the second slot doesn't like either stick, and both sticks work in the first?

Unfortunately it's probably a bad RAM slot  and there's very little to do about that. 

Sorry, I was being silly, I didn't push either stick on the second slot all the way in out of fear of breaking it, I pushed it a bit more and now it works, thanks for the responses, I wish you a great day.