Thanks for the reports,
tasman27
They provide some help, but don't narrow it down much.
Temperatures are fine.
Stop: 0x0000000F4 with the 03 parameter suggests a hardware problem.
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Since "hardware problem" covers a lot of territory, that means you'll have more diagnostic work before getting this sorted out.
Possible culprits include:
RAM
Hard Drive
Cables and/or connectors
CMOS battery
PCI and PCIe cards
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Before you proceed, please thoroughly read:
http://forums.whatthetech.com/index.php?showtopic=103649
Question:
Since you state that time/date become inaccurate when this problem occurs, I'd suspect the CR 2032 CMOS battery to be at least partially contributing to the problem
Fortunately CR 2032 is commonly available at Camera, office supply, and electronics stores. (two-pack for around $3.79US)
Replace your CMOS Battery.
It might just fix your entire problem, but if not, will not have been an expensive experiment.
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While you have your case open, please physically inspect your cable and plugs to assure that they are well-seated.
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Please run Window Memory Diagnotic:
Read here for instructions and download link:
http://forums.whatthetech.com/index.php?showtopic=103823
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Please go to the website of your Hard Drive manufacturer.
Download their Disk Health, or Disk Diagnostic scan utility
Run it as recommended.
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Please report back with your progress.