Motherboard not booting to bios but getting power, getting two beeps from mobo but mobo battery sitting at 3 volts is this enough, and where to find beep codes for mobo if not in manual, or is the beep codes universal for motherboards.
The beep codes are not universal, but there are a few popular BIOS's and you can figure out what 2 beeps means if you can find your BIOS listed here:
http://www.computerhope.com/beep.htm
The name of your BIOS should appear on the monitor as you're booting.
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My PC shows power led, on boot shows hard disk light for 20 secs only, nothing else happens/screen is totally blank. Hard disk does not spin. I've changed the motherboard for another M810, changed the RAM and checked the PSU voltages, which all appear to be within 0.3 of expected. How can I check CPU please - does anyone have any other ideas, the only common items now are CPU, PSU (and case!). Please help!
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