Flashed BIOS and can't boot w/ cdrom

Dell Dell latitude d400, d500, d600, d80...
September 6, 2010 at 00:21:47
Specs: Windows XP SP3
This is a Dell Latitude D400 laptop. The original BIOS that came with this laptop was A07. I was able to boot from a CD on the D/Bay DVD-Rom drive before I flashed the BIOS. I flashed the BIOS to A08 and was no longer able to boot any CD's or any DVD's. It won't let me boot from a floppy drive in the D/Bay or as a usb device.The floppy drive module works in the D/Bay or on a usb port. I came across a couple of old forum postings on the net indicating flashing the BIOS to be the culprit. My I thought that perhaps A08 BIOS had a bug in it and reflashed it back to A07. The results are still the same after the reflash. Does anyone know of a fix for this problem? I got this laptop as a refurbushed unit so I don't have a warranty for it, which is needed to contact Dell directly.

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#1
September 6, 2010 at 00:23:31
Have you changed any settings in BIOS since flashing ??

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#2
September 6, 2010 at 00:35:51
Just the boot options and the boot order serveral times. I also changed an option concerning Boot integrety services. It appears to be a PXE option for booting over a network. That's pretty much it.

Update: There was one BIOS change I overlooked. I had also disabled the USB Emulation as the setup said it was for OS's that did not have USB support. It is to allow USB keybords and mice to work in those OS's. I turn it off as I am not using one of those OS's. What the setup doesn't tell you is that it is also needed to boot up on the CD/DVD-ROM and floppy drives since they are USB based. After turning on the USB Emulation in setup, I was able to boot up the Smart Boot Manager that I had on a floppy disk, as the floppy drive was in the D/Bay at the time. I forgot about that setting as I had done that about three months ago which was when I had flashed the BIOS to A08. I had flashed back to A07 yesterday.

Update 2: I was testing the other setup settings and it appears that the only other setting that can affect the boot process is on page 3 for the boot settings. The boot speed should be set to 1.8GHz and not the slower Compatibility option. The compatibility option prevents Linux boot CD's from booting. They will just hang. I suppose this option is for some rather old software. Non of the other options seem to affect the boot process not counting the boot order screen on page 2.


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#3
September 6, 2010 at 13:14:22
So the bios is seeing the cdrom and the cdrom is set as the first boot device and you're using a known good bootable cd?

Real men don't use AntiVirus; they just reformat


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Related Solutions

#4
September 6, 2010 at 16:41:54
I was trying to boot one DVD, three cd's, and one floppy. They were Slackware 13.1, Knoppix 5.3, Suse Linux 8.1 Pro, Driveworks, and Smart Boot Manager. The BIOS was seeing the cdrom drive but was not allowing booting from it. It also was refusing my floppy drive as well. The devices were working fine in XP. I went as far as having only these devices set as the bootable and the HD booting turned off. I searched the net to see if anyone had found a solution and found a couple of old posts indicating that flashing the BIOS was somehow behind this. Non of the posts had very much info on what they did exactly but did indicate what machine they had flashed. While playing around with the settings in setup I tracked the culprit down to the USB Emulation setting as the culprit. Setup provides some incorrect info on the behavior of this setting when disabled which doesn't help. The posts I saw can be found below:

http://en.community.dell.com/suppor...

http://www.fixya.com/support/t15766...


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#5
September 6, 2010 at 21:29:45
If that update is corrupted Dell should have realized it by now and issued a newer one. Besides, reverting back to the old version should have fixed it.

I'm not sure if 'tracked the culprit' means you've fixed it or if or if the USB emulation is involved but you still have the problem.

The few bad bios updates I've encountered indicated loss of floppy support can happen. It wouldn't suprise me if loss of other peripheral support could happen also. If you still have the problem make sure you've got the right bios update. Then try it again.

Real men don't use AntiVirus; they just reformat


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#6
September 7, 2010 at 09:57:12
I flashed back to A08 and no problems are happening. It doesn't look like it was the BIOS after all. It was just the US Emulation option that was causing the problems. I think we are through here. Thanks everyone for the help.

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#7
September 7, 2010 at 16:09:13
You're welcome. Hopefully that's all it was. Thanks for posting back.

Real men don't use AntiVirus; they just reformat


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