Well it was the next thing I was going to get into mate.
Personally I would also check out the power supply adaptor and the battery while you are at it. The adaptor you can test with a digital multimeter - cheap as chips these days and the battery you can use this ditty of mine
Using HW Info
PART A:
You can test the volts on the PSU with HW Info HWiNFO, HWiNFO32/64 - Download < download the right bit version and close the right hand window select Sensors and scroll down to the power section where you will see what the volts are doing see my pic. Now the section you want will be labelled - fpr example Asus boards usually have "Nuvoton" and Gigabyte boards "ITE" in any case the section you want will have Vbatt or VBAT in it (dead give away) Edit
HWiNFO, HWiNFO32/64 - Download
The original right hand window shows the machine running and is handy for that but for looking at the components in some detail close it and use the main left hand side panel
FOR OTHER COMPONENTS
PART B:
Open each small square with + in it on the section the components are in and then click on the individual component/s (it will highlight in blue) - in the right hand side will appear all sorts of details including brands speeds and other essential info that particular device. See pic for example.
Use PART A: and when scrolling down to look for the PSU as this suggests you will come across a section covering the battery and it will show you the volts on the different cells and the capacity in watt/hrs.
Both will show you the condition of the battery the volts need to be within 11.4 and 12.6v anything above or below those is not acceptable (if very close then replace) because the machine has to use finely adjusted volts for everything - the capacity is just an idea of how much there is in the "tank" as it were - if the figure are low then the battery has seen better days and I personally keep a spare for all my laptops they are not expensive these days.
In my pic it shows the PSU section for a desktop but in that read out there will be one for your battery I just haven't got a pic of the battery readout on this machine right now.
Sorry to see you go to 10 though am putting it off until I seriously have to but hey have fun.