i had the exact same problem, you need a new
motherboard more...
Motherboard Looking for location of MB part # or serial number for Acer Aspire 5100
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i think check your battery or
motherboard more...
it look like your
motherboard have problem
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try motherboards.org or driverguide.com for a manual
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k man tell me ur sound card no or
motherboard no
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Send it back to Toshiba you have a
Motherboard issue
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