On Sun, 12 Feb 2012 10:50:16 -0600,
wrote:
>On Sun, 12 Feb 2012 05:50:49 -0800 (PST), Larry
><> wrote:
>
>>On Feb 11, 6:06*pm, bu...@earthlink.com wrote:
>>> Don't know what's going on here. Talked to Dell support and they put
>>> me in a "rebooting" category, which is not my problem.
>>>
>>> I have a Dell Optiplex 755, 4GB ram, intel core 2 duo processor E6550
>>> @ 233GHx. Running Windows7 Ultimate x64.
>>>
>>> This computer boots up on it's own. For awhile, it would start, run
>>> for 10 or so seconds, and turn off. It did this every 10 or 15
>>> minutes. Now it completely boots on it's own unless I disconnect the
>>> power cord.
>>>
>>> I ran the system diagnostics program and found no errors. I checked
>>> the BIOS and made sure that nothing external can wake this machine up.
>>> I am at a loss. Any ideas would be appreciated.
>>
>>A long shot suggestion...but I have a laptop that would turn itself on
>>when I first purchased it. Dell tech was no help but found the
>>solution when I googled a description of the problem. My problem was
>>solved by unchecking box next to the "Allow this device to wake the
>>computer" under the Power Management tab in the WLAN Mini Card
>>Properties.
>>
>>Larry
>
>I tried that "Allow this device to wake the
>computer" a few days ago. Also tried unhooking my LAN ethernet cable.
>Didn't make any difference.
>I'm sorry I was not clear. The computer wakes from total shutdown. I
>never had this problem before. It used to boot for a few seconds every
>10 or 15 minutes, then shut down. Now, all by itself, it boots 2 or 3
>times,for a few seconds, with these numbers on the front panel lit:
>1,3,4, and the HDD. Then it turns itself off. A few minutes later it
>boots up by itself and is running. When it is on, everything seems to
>be working fine.
>Maybe a corrupted BIOS? I'll try flashing it. I can't think of
>anything else.
It appears that the BIOS flash did the trick. I don't know why I
didn't think of it sooner. The machine also appears to be running
faster, although I have not clocked anything.
It sat without booting for an hour, which it hasn't done for a week,
so maybe I got lucky. Thanks.