I have a bit of a issue, that has been driving me absolutely nuts !
A friend of mine has a Dell Inspiron 1525 that he asked me to take a look at. It is currently running Windows 7 (home premium) 64-bit. What's going on, is that the computers clock keeps changing time. He had told me previously that the time kept changing... so I took a look at it, but everything I tried was unsuccessful. So, I kind of just told him that he'd have to live with it. Then, one day he went to turn the laptop on, and he just got a black screen that said "Time-of-day clock stopped" and nothing at all could be done, not even BIOS. So, I did some research, and it was looking like the issue may be a bad CMOS battery. So, I tore the entire laptop down to the board, and put a brand new CMOS battery in it (I tested the voltage on it before installing it to, to verify that it was working alright). Then, I started that laptop up, and it l started up Windows properly, and didn't display the "Time-of-day clock stopped" screen.
But, unfortunately after looking at it closer, it was doing the same exact thing with the time that it was before it started displaying the "Time-of-day clock stopped screen". I can set the time on the clock, and it will stay correct as long as the machine is on. But, if I turn off the computer, when I turn it back on, it is still at the time it was whenever the machine was shut down. It must be using some type of memory to store the time that it was when it was shutdown, but it isn't continuing to run the clock even when it's off. So, I spent about 4 hours this morning on different things, and nothing at all was successful. Here is a list of the things I have tried thus far:
1. Replace the CMOS battery with a brand new one
2. Adjusted the clock time manually
3. Set the clock to synchronize with an internet clock (tried 6 different time servers)
4. Went into BIOS and changed the time in the time/date section
5. Performed the unsubscribe/subscribe w32tm code in the command prompt
6. Used the Atomic Clock Sync program
7. Updated the BIOS from the A16 version that was installed, to the most recent A17 version (this was the last thing I tried)
So, I am beginning to think that it must be the actual motherboard that is bad, and would have to be entirely replaced to get it working again. If this is the case, my friend is just going to trash the thing. He's already had to replace MANY parts on this thing, and it must just be a "lemon" computer. Any input on this topic would be GREATLY appreciated. Thanks!