[Broni]

I hoovered out most of the dust

If you mean, you used vacuum cleaner, it's very deadly (for computer electronic components) idea.

only displays 3.37GB or RAM

It's normal for 32-bit system.

What about temperatures?
You have to take care of it, unless you want to buy new computer, soon.

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[bleep]. Will not be using hoover anymore then! Would you recommend compressed air and a duster in the future?

Most recent temps:

GPU 51C
System 28C
CPU (between 75 and 83)
Aux 51C
HD0 20C
HD1 27C
Core 51C
Ambient 0C

Is there anything I can do to help solve this problem?

Thanks so much.

[smudeagle]

[bleep]. Will not be using hoover anymore then! Would you recommend compressed air and a duster in the future?

Most recent temps:

GPU 51C
System 28C
CPU (between 75 and 83)
Aux 51C
HD0 20C
HD1 27C
Core 51C
Ambient 0C

Is there anything I can do to help solve this problem?

Thanks so much.

[rshaffer61]

CPU (between 75 and 83)

Better check that CPU fan and replace it since it looks like it's not cooling.

[smudeagle]

I've checked the CPU fan and it appears to be running OK (it comes on with the computer and spins...). Is there anything particular that I can do?

[rshaffer61]

Like Broni said the system is in melt down mode.
If you have a fan that you can place next to the system blowing in over the cpu it may help temporarily.
Best suggestion is to check that fan and make sure it is clean and nothing is preventing it from turning correctly.
Regardless I believe you will need to replace that fan.
Once Broni returns he can give you his opinion also but I'm sure the cpu fan is not cooling correctly.

[Broni]

CPU (between 75 and 83)
the system is in melt down mode

Definitely. Those temps are well over your processor max temps.
If you see fan running OK, I'd go for reapplying thermal paste: http://www.arcticsil...nstructions.htm

[Broni]

In any case, I wouldn't turn this computer on until the problem is solved.
Damages are imminent (if not done already).

[Bowtome]

It is your power supply, 100% sure of that. If the computer just shuts down, your power supply is not producing enough power.

Adding Ram and extra hard disk needs more power and is pushing the PSU too much.

Either the PSU doesnt put out enough power or it is failing.

I had the same problem recently.