Hello. I am back. I have been quite busy and I will not drop this issue!! I apologize for my tardiness!
First off, thanks for ALL your responses!!!
I see I have friends here!
Okay, regarding the requested screen shots of CPU-Z. These CPU-Z screen shots are regarding this STABLE system with 6 GB of RAM. I have attached ALL (more than you requested) of them (All its tabs except the "About" tab, obviously.) for your information. I figured more information the better for you to get a better idea of what is going on here. I see you can tell A LOT about my system from this program. Yes, slot number 4 is empty because there is no RAM module in there.
What to additionally note to assist you and some of you even asked for as well:
1. Yes, I stable right now as I said in my initial post with the 6 GB of RAM. It's when I go to 8 GB of RAM when that random video freezes and BSODs happen during playback (later on during the playback) like watching a long You Tube video (BCCode: 117 & 119) -- see my initial post.
2. I have all my BIOS settings set to default or "Auto" with *NO* BIOS modifications of any kind (voltages, timings, temps, etc.) at this point because at 6 GB of RAM things are working fine.
3. You may be wondering on the way my motherboard configures memory -- like single or dual channel configuration with my installed odd 6 GB. This is what my ASUS User Guide states in regard about this:
"You may install varying memory sizes in Channel A and Channel B. The system maps the total size of the lower-sized channel for the dual-channel configuration. Any excess memory from the higher-sized channel is then mapped for single channel operation."
So... ...I take it to mean that since my ASUS P5Q has 4 RAM slots called Channel A that is DIMM_A1 and DIMM_A2 (These are paired together in terms of proximity -- yellow and black slots.) and likewise Channel B that is DIMM_B1 and DIMM_B2, where Channel A has 4 GB installed and Channel B has 2 GB installed; I STILL HAVE SOME *DUAL* channel configuration for both channel slots DIMM_A1 & DIMM_B1 since Channel B is smaller than Channel A and Channel B determines the minimum mapping for dual channel configuration. The excess RAM (2 GB) in the Channel A (DIMM_A2) is the SINGLE channel mapping configuration. So I have BOTH kinds of mapping channel configurations. My system can do both and not just stick with complete single channel mode.
4. With the Corsair XMS2 4GB 2x2GB modules; TWIN2X4096-6400C5 -- They are double banked or chips on both sides of each module covered by heat-sinks on both sides.
5. In terms of the BIOS Update for my particular ASUS P5Q, I am running the latest from the ASUS website: that is 2209. It was flashed quite some time ago.
...BUT I WOULD LOVE TO GET IT TO UP TO *8* GB OF RAM!!!! THAT IS MY GOAL!!!!
Let me ask you this... ...Would you like or need to compare this CPU-Z data with current stable 6 GB RAM system to the similar CPU-Z data when I am running my system with *8* GB of RAM and this particular issue???????????? Let me know!
I hope all this data helps you get to the bottom of this issue with 8 GB of RAM!
Any more questions, please let me know.