well, About three months ago I purchased a refurbished Dell Latitude D610. It's been working wonderfully up until about a week ago, when a couple of things started happening:
1.) When I power-on (or power up from stand-by mode) it will often immediately power off. I will press the power button again, all of he lights will come on, and after 1-2 seconds, before it even enters POST, it powers-off again. If I try this several times (sometimes more than 10 times) it will eventually power up and stay on, boots into Windows (XP SP2) just fine (though I do get the TPM error, which I will get to in a moment), and works just fine. No unexplained power-offs or anything.
Sometimes (but not always) if I'm trying to get it to turn on and the AC adapter is plugged in, I can unplug it and press the power button again then it boots, but it could be just coincidence. The only other thing of note is that the AC light on the console no longer stays on continuously, it just kind of flashes intermittently. When I shut-down and close the cover, the light isn't on at all, even though the AC is plugged in. The only way I know that it's getting power is that the battery does stay charged and the battery icon disappears when plugged in.
2.) A couple of days after I started having the power problems, I started getting the "Warning: The TPM could not be initialized - Hit F1 to continue or F2 to go into setup." Assuming that the TPM was the problem, I installed the new driver utility from Dell, followed the sequence of installing, changing BIOS settings, etc. and it didn't change a thing, however it did cause a couple of problems when in Windows, so I unstalled it, which proved a problem itself, and ended up just doing a System Restore back to before I installed the TPM software. Disabling the TPM in the BIOS had no effect. I would still get the error on startup.
After doing some research I learned that the TPM is related to the NIC, afterwhich I noticed that the onboard NIC was no longer recognized in Windows. I am unsure how long this has been the case since I usually go wireless, but I would guess that it was the same time I started getting the TPM errors, and when I go into the BIOS and disable the onboard NIC, Viola! The TPM error no longer appears.
So basically I have a bad NIC (and presumably, the TPM module is likely fine, it's just reacting to the lack of a NIC?). When I re-enable it in the BIOS, Windows still does not see it, and on the back of the laptop there are a couple of amber lights on either side of the RJ-45 connector, regardless of whether or not a cable is plugged in.
Could these two problems be a bad system board? The power problem occurs before POST even starts, which points to a hardware problem. The fact that the NIC doesn't work also points to hardware.
I have made no other changes to my system lately, with the exception of installing a Jabra Bluetooth dongle (USB), which I would think wouldn't effect any of the network stuff.
Answered by
Saurabh
, an ibibo Master,
at
7:13 AM on June 04, 2008