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How do I create a DOS boot CD-ROM for bios upgrade?

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August 16, 2008 12:56:09 PM

I need to upgrade my bios via CD-ROM, and I can't figure out how to create a bootable CD-ROM for the job. Any help here would be great. THanks.
a b V Motherboard
August 16, 2008 1:13:14 PM

I would certainly never suggest trying to update your BIOS from a CD. During a BIOS update, your old BIOS is copied first and written to the drive, in other words you need to do the update from a writable drive. If you don't have a floppy drive, I would highly suggest you spend $10 and buy one and use it for your BIOS update. I have had good success using some manufacturers Window's version of the updater, although I do prefer the old DOS-only method. Anyway, it does require you to use a drive that is writable during the update. You may be able to get away with it, but updating your BIOS can very easlily leave you with a dead motherboard if it's not done correctly. FACT. It happens to people all the time.
a b V Motherboard
August 16, 2008 1:37:21 PM

Newer boards have a built-in BIOS flash utility accessible from the boot screen (like BIOS settings) and can access USB keys; might be less of a waste to get a USB key than a floppy.
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August 16, 2008 1:55:12 PM

usb is just as good as floppy, but faster...i killed my 2900xt by flashing from cd because i couldnt save my original bios and i had an unsuccessful flash. floppy is ok if you can stand the slow read and write times.
August 16, 2008 3:38:56 PM

Oh, I didn't know that it could be done with a flash drive. How do I do that?
a b V Motherboard
August 16, 2008 4:32:12 PM

Depends on the board, what MB do you have.

As an example, this is the intruction for Gigabyte's Q-Flash utility.
August 16, 2008 5:05:55 PM

It is an Asus P4S8X-MX
a b V Motherboard
August 16, 2008 5:28:38 PM

Your board has EZ-Flash, which is kind of like Q-Flash, but I don't know if it supports USB keys. Take a look at page 2-3 of your user manual for instructions (or here for pdf); it seems you have to press <ALT>+<F2> at boot to enter EZ-Flash.
August 16, 2008 9:26:08 PM

Ok, well, it doesn't seem like I am able to boot from USB, so what is this EZ-Flash thing and how do I use it?
a b V Motherboard
August 16, 2008 9:35:17 PM

Van Halen Man said:
Ok, well, it doesn't seem like I am able to boot from USB, so what is this EZ-Flash thing and how do I use it?

Answer:
Zenthar said:
Take a look at page 2-3 of your user manual for instructions (or here for pdf); it seems you have to press <ALT>+<F2> at boot to enter EZ-Flash.
If you cannot boot from USB, EZ-Flash might not be able to see the USB key either...
August 16, 2008 11:40:06 PM

Ok, well EZ-Flash can't boot from USB either. It says checking floppy, then once it realizes there is not floppy, it says checking CD-ROM. Is upgrading from a CD-ROM using EZ-Flash STILL a bad idea? Becuase I REALLY don't want to upgrade with a floppy drive....
a b V Motherboard
August 17, 2008 12:29:47 AM

Van Halen Man said:
Ok, well EZ-Flash can't boot from USB either. It says checking floppy, then once it realizes there is not floppy, it says checking CD-ROM. Is upgrading from a CD-ROM using EZ-Flash STILL a bad idea? Becuase I REALLY don't want to upgrade with a floppy drive....
I'm not sure it's THAT much of a problem, but if you have no way of backing-up the current BIOS, if the new flash fail, you might be the proud owner of a motherboard-shaped-brick.
August 17, 2008 2:30:58 AM

I got the motherboard from a friend and he upgraded the bios when HE had it, and he gave me a disk that had the original bios and the current so that should be alright.
a b V Motherboard
August 17, 2008 2:49:22 AM

Make sure all the BIOSes are on the CD because if the flash fails, you must not reboot.
a b V Motherboard
September 7, 2008 12:49:17 AM

Quick question: Was the Flash drive formatted with FAT32? If you use NTDS it will fail.
!