I've got a problem with my PC .Last week my SATA drive blew one of the chips while I was trying to put another HD in and now windows is very slow to boot up.I have had an engineer out and he said it could be the motherboad on the way out or power problem (possible power surge).I'd like to use a good program that could detect any possible faults .Not sure if I'm asking for the impossible I just want to be forwarned before he takes the PC away and I pay an arm and a leg .The pc is running but is slugish.
Voltages should be within 10% of nominal. The PSU is only responsible for 12V, 5V and 3.3V. The motherboard generates the CPU core voltage, which depends on what CPU you have. -12V will probably give a strange figure because it is no longer used. From your description I think a failed motherboard is quite a high possibility.
Probably there are some diagnostic tools on motherboard website - well, maybe, if it's quite recent board. They may even be within Bios, or on accompanying resource cd. If OS came installed you may have to contact Microsoft to re-register/activate/get approval for XP to new motherboard for some reason, as a friend of mine had to. (This is one reason I want nothing to do with Xp/Vista if at all possible). If it's OEM supplier can tell you.
If you replace the motherboard with an identical one, then it will probably run without any changes to the Windows installation, although you might need to phone Microsoft to revalidate Windows.
For monitoring motherboard voltages and temperatures I use MBM5 click here, although the results from any diagnostic software are only as good as the motherboard sensing hardware. If you have access to a digital voltmeter you can easily measure the 5V and 12V supplies on any spare drive power connector. You can also measure the 3.3V supply although that is a bit more tricky. Having said all that, it is most unlikely that you will find any error in any of the voltages. That would be more likely to stop the computer working at all.
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