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try this link http://tech-tips-ireland.blogspot.com/2010/03/how-to-test-your-laptop-charger.html

glad to be of help :)

I assume you have got your bios set as I have a PnP operating system to let windows set the IRQ's - if not set it this way. If you have then try assigning an IRQ to your Graphics card to stop the soundcard bumping it. Also I assume you have got any on-board graphics switched off.

If you want a small footprint then the samsung colour laser clp-320n is a good bet. I have the 300 variant and its only 15.3 x 12.3 x 9.6inch. Expect to pay around £160 but a lot better in terms of ink usdage than an inkjet.

when i use dvd my blue ray copy protection kicks in and wont load it works fine with hdmi, I think its to do with whether the monitor supports hdcp, if not the dvid-d port wont work with bluray

sounds like your computer is trying to load the usb device on startup. You could try the following: turn off legacy usb support in the bios and turn off boot from a usb device.

Have you tried checking the power saving settings and adjusting these. Also ensure the latest drivers for your soundcard, check that the bios has acpi on and apm off.

check your psu hasn't failed

sounds very much like a faulty ram stick

It could be the power supply, can you try unplugging it and cleaning it to see if is dust build up, or better still have you got a spare psu to try?

sometimes it can do this if it isnt shutting down properly

So you can boot into the bios, and there is a setting there (in Advanced settings) to boot from PCIex rather than the onboard GPU. My understanding is that the VGA card has to go in the white slot for your graphics card to run at 16x. I know the mobo has a a switch to switch between 3 and 4...

Different bios have different codes. If you know the Insiron Model you can check on the dell support pages or just google it. This link has an example of dell codes for an inspiron 7500 (scroll to the bottom of the page). http://support.dell.com/support/edocs/systems/psyd/syscodes.htm

It has reasonable reviews, the LEd screen is only 1366x768 and obviously has a low voltage 1.4ghz dual processor and integrated graphics. For internet and general office and non-demanding games it will be fine.

One suggestion: The Sony SONY Vaio VPCEB1ZOE/B at around £799 with an i5 processor and ATI 5470 GPU, nice full HD screen and Bluray.

You will struggle to play those games at all on that gfx card

The UDR3 is a better mobo and will overclock better. I dont think memory timings will make much of a real difference in the real world as long as the momeory you choose is matched to your mobo specs.

Can I check that you disabled the onboard sound chip in the bios whilst installing the SBLive card?

I would only repeat that if you are spending £600 on your system dont cut back on the motherboard spec. I would tend to look at the mobo as the first item on the list, followed by the PSU and the case.

The 1200 has more room for larger gfx cards and would be better suited if you wanted to go for an sli set up in the future. Particularly as you are also going for watercooling setup....not sure how well the H50 will cool an overclocked i7 930.