BIOS update, EIDE card, or overlay software? (FAQ Hard disk recognition)
#69799 by RiP2
Thu Apr 04, 2019 9:49 am
Hello all,

Can anyone modify the BIOS of this motherboard for me to support 128GB hard disk with UDMA fix?

I found a patched one here but sadly, the UDMA doesn't work with it:


Code: Select all=> Patcher can make support of big HDD (up to 137 Gb) with fixing "UDMA"-problem (HDD UDMA66/100/133 on only_UDMA33 MB)

Code: Select all3. UDMA mode limitation
In the older Award BIOSes was the HDD set to highest supported mode, it was not problem when only UDMA33 HDDs were produced, but later problem arised: HDD was programmed to e.g. 66 MHz and chipset maximum was 33 MHz, the result was unreliable operation. There are some solutions, switch off UDMA in BIOS setup at all, or use special program supplied by HDD manufacturer and switch off ATA/66 support. Better way is to implement this directly into the BIOS code. FYI:
UDMA mode 2 = ATA/33
UDMA mode 4 = ATA/66
UDMA mode 5 = ATA/100
UDMA mode 6 = ATA/133