|I upgraded the CPU in hopes that the added power would improve the performance of some of my peripheral devices and it seems to have done that. My external DVD writer, which was behaving very erratically, now works perfectly. Most USB devices now require a minimum of 2.4 GHz. I bought the DVD writer because it allegedly only required 2 GHz, but it really didn't work right until I upgraded.|
I would agree that BIOS can't roll back on it's own, based on my experience--but my experience until now has been mostly with old legacy machines. My most recent experience updating BIOS was with our old Gateway 2000. But I'd swear that it did! When I got the machine, it had A18. I was avoiding an upgrade to A19 because I didn't seem to need it and I had read negative things about it. I used the non spread method for applying the thermal paste because of relative pro and cons I had read. Perhaps I should have spread, but I doubt if its a factor in my problem
My display problem is that nothing appears on my external monitor during boot-up except a "no sync" message at the bottom (which, of course, conveys no information except that there's no signal) until the Windows Welcome Screen appears. At that point, the monitor crackles and comes to life. After that, I log into Windows and everything is normal. If I leave the lid of the laptop, which I'm using as a desktop, open, I can watch the whole boot process, from the Dell splash screen, on the laptop screen, so there's nothing in Setup hiding the POST (such a setting doesn't even seem to be available). I should probably mention that my external monitor is an old CRT plugged into the VGA connector on my docking station, although the behavior is the same if I plug it directly into the VGA connector on the laptop. One of the few configurable settings in Setup that seems even remotely related to the monitor is the default controller, which offers the options of docking station or on board. The default is docking station, but I've tried both with the same result. I should also stress that the problem only started after the CPU upgrade.
I accept the assertion that "Intel Crestline Graphics" must have been there before. It's not something that would have been significant to me at the time.
It's as if there's no support for the external monitor until the Windows driver loads, strange as that seems. Pressing the key-stroke combination for switching monitors (<fn> <f8>) does switch the display from the laptop to the external monitor before the appearance of the Welcome Screen, at the boot menu, but that only works after the hard drive has been accessed. And of course, as I say, it's a brand new problem. Judging from the lack of problems once Windows starts, It seems that both the computer and the monitor are OK, and I just don't see anything at all in Setup that could affect the situation. In your opinion, Is there something I might have done in disassembling and reassembling the computer that could have caused it? I need to go back in and check the wiring, but since the computer seems to be working fine otherwise (better than ever) I'd like to do as much as I can to see if there's another explanation.
Thanks for the links. I'll look through it all.
message edited by krh