Oh yea, that sentence seems overly complicated
What I meant is, I wanted to test the RAM, but couldn't do it. I would have done it if I had CDs.
I'm not able to write in English anymore, it seems
Using your PC with the side panel off will only disrupt the normal airflow of the PC and make it not as cool as it could be; it's a very poor way of measuring temperature.
And I don't know what you mean by regular RAM and motherboard RAM...there's only one type of RAM inside your PC, and those are the two 2GB sticks in their slots...
By motherboard RAM I meant motehrboard cache and all the other things that YanksOnTop (above) mentioned. I guess cache and RAM are not synonims. And I don't think there is a lot of airflow to be disrupted. My case is not as big as it maybe should be, so there's not much room for the air to flow straight.
The fans on the GPU are faced downwards (I don't think it's good for airflow), the CPU fan is blowing to the side and the PSU fan is blowing out. I also have a spot on the back of the case where I can put another fan, but I don't have any spare fans.
On the front of the case, down bottom is a small hole for the cool air to go through, but then the air has to navigate between my hard drives and the far end of the GPU to reach anything useful, so I don't think that's good airflow. But it has worked for many years now.