In your first post you state that you need more RAM, but you didn't explain why, please do so. I would hate to go through all of this only to discover that you have another problem which is causing problems.
Below is the information regarding the RAM used in this computer.
Memory upgrade information:
Supports DDR3 DIMMs only
Dual channel memory architecture
Four DDR3 DIMM (240-pin) sockets
Non-ECC memory only, unbuffered
Supports up to 16 GB on 64-bit PCs
Maximum memory only if using 4GB DDR3 DIMM modules.
As you can see the motherboard doesn't want to see modules exceeding 4GB.
Now... regarding the Speccy. I posted the link to view my Speccy Snapshot. If you have taken a look through this you probably already realize that it does not divulge any hidden secrets or personal information. But the information provided does give insight to other potential problems, like the S.M.A.R.T. Attributes which can indicate an existing or potential problem with a SSD/HDD. But since you have decided to refuse to use this tool we will take another approach.
Please download and install CPU-Z. CPU-Z will update itself and then run a scan of your computer.
Click on the SPD tab. You will see an image like the one below.
You will see Memory Slot Selection, you click on this to change the DIMM slots to see what is installed.
When you find your installed RAM you will see that the Manufacturer and the Part number listed, post this information in your topic.
Regarding Crucial SSDs.
Crucial manufacturers SSDs, they want to sell these storage devices, so they advertise these products along with what they determine is compatible RAM modules. SSDs are recognized as being appreciably faster than a HDD. Its read and write speeds are much faster than the HDD. You need to be aware that there are a plethora or manufacturers out there competing for your business, shop around, read reviews so you are aware of what is available and what would be applicable for your use. You already have a HDD which you can eventually remove the operating system which is now on it and then use it as a storage drive.