BSODs while gaming or cpu stress testing

look like a ram issues
try with only one stick

of course the psu look like a crapy one too , better to replace with a real one like seasonic/xfx/antec hcg/evga B2-G2/rosewill capstone

can you put the model of your mobo

I did not see any drivers in memory that were corrupted, just the data that was being read was wrong it could be low power supply voltage. I guess putting in a new power supply would be a good test.
you also had a few old drivers you might want to try to update but I don't think they would be the cause of the problem.

most of the bugchecks involved video, the others involved bad instruction pointers
You might disable the video card /replace with a known good one. (assuming that updated graphics drivers don't help)

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Why unplugging the power supply and reconnecting would work: Thermal stress on solder joints can cause a joint to expand and contract over and over until the joint pops from its circuit trace. When power is applied the circuit heats up in 20 or 30 seconds and makes a proper connection and the machine works.
These are very difficult to find. The last one I found was under a heat sink on a memory module the machine would bugcheck every morning then run fine until the next day. When the machine was cold, the leg of the memory chip would contract away from the solder pad, when it got warm after about 20 seconds of power it would expand and make a good connection. Problem was the leg controlled a address line for memory and when it connected it would move the memory block by the logical value of the memory address bit the leg controlled. This resulted in various bugchecks in windows (data corruption)

Try this: When your machine is cold, boot to BIOS for 20 or 30 seconds, then reboot into windows and see if you can get a bugcheck.
(at least you will not have to unplug your power cable)

your system is pretty old, you can have a bad solder joint any where in the system. Also, your system is likely using the first generation of lead free solder, that solder is very brittle and the connections tend to break. It is one of the reasons many motherboard vendors reduced the warranty period. Too high of a failure rate in the long run.

I will look at your bugcheck memory dump to see if I can see any software problem

old drivers:
broadcom driver is old:
\SystemRoot\system32\DRIVERS\k57nd60a.sys Fri Oct 16 03:29:38 2009
http://www.broadcom.com/support/ethernet_nic/downloaddrivers.php

silicon image driver are pretty old (2007)
http://www.siliconimage.com/support/

3 bugchecks weren in graphics code
2 bugcheck had addresses that looked valid but were not.
1 bugcheck involved a bad instruction pointer but your driver don't seem to be corrupted in memory.

i told you