When he discovered the problem, he simply move the disc from the CDROM drive to the DVDROM drive, and it worked without problems. He didn't know the DVDROM drive was set to the master drive, so he was desperately trying to boot from the CDROM drive. Secondly, are you sure the disc is in the right drive? One user had two drives, one DVDROM and one CDROM drive. Firstly, are you using a CDRW disc? I have personally encountered some machines that refuse to boot up from certain CDRW discs (eg. But here are a couple of random things that you might want to check out. The Ultimate Boot CD just refuses to boot from the CDROM drive, despite the fact that I have double, no, triple checked my BIOS settings. In newer BIOSes you can press F8 (or an equivalent key) at boot time to select from which hard drive/cdrom drive you want to boot without altering the boot sequence in the BIOS menu itself (a sort of 'boot once' option). Make sure you are burning the ISO correctly.
If both these are set, then perhaps you have a bad burn of UBCD. CDROM is set to boot before your first disk.Check your BIOS settings for the following: Personally, I burn the UBCD at 4x - even when using 52x capable CD-R disks, and have since then not had the problem.įor CD-drives that won't boot any bootable CD, though the BIOS enables it, is worth checking if they are installed as slave instead of master on the IDE. For some of the problems with not reading the CD I suspect this could be a solution - particular in cases where commercial CD's will boot (where the production is different from home burned CD's). I have followed the advice when burning CD's for general use, that I'll try to make sure will read on most systems, and have to say it's worth the prolonged time to burn the CD. Toshiba suggested not to burn CD's at higher speed than 8x to make sure they will read on their combi drives. On these drives there has been reported problems with reading CD's burned at high speed. Once battling with a Toshiba laptop, I was browsing the Toshiba tech-support website, where i found a note about problems with DVD/CD-R combi drives. Change your BIOS settings to boot from the CDROM drive first before the harddisk. Since your HDD is bootable, it will boot into your usual OS. Chances are, your BIOS is configured to boot from the harddisk first instead of the CDROM drive.
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