Pleaes Help Flash Verification Error

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Hello i have a new motherboard of which the flash chip is a 256KB chip i am flashing from an old motherboard that has a 128KB chip in it. Uniflash works fine if i flash chips with the same amount of data. I.E. I had another motherboard that was also dead but its bios was only 128KB and it flashed and works now. However no matter what i try when i try to flash to my 256kb chip it writes about the last half of data and the first half is all XXXXXXXXX so i am wondering if there is a way to either make my old bios bigger (i.e. buy a new 256kb and somehow edit the bios to make it 256kb) or to b somehow make uniflash force to flash the new chip. Does anyone have any ideas. Thanks again. Also if anyone wants to know the new motherboard is an apollo (which is the dead chip) and the one i am using to flash is a biostart m6tba which is intel 440. Which should work. Can someone help me out thanks again

THANKS

19:01:30.05: UniFlash v1.27 started: C:\BIOS\UNIFLASH.EXE -e tba.bin -log
19:01:30.16: Chipset detected: Intel Triton 430FX
19:01:30.16: Flat Real Mode initialized
19:01:30.16: CMOS size detected: 128b ---- I THINK THIS IS MY PROBLEM BUT DONT KNOW HOW TO CHANGE IT
19:01:30.16: Intel method: reg $4C = 14876749
19:01:30.16: Intel method: reg $4C changed to 15138893
19:01:30.16: System ROM selected
19:01:30.27: Flash ROM chip detected: STMicroelectronics M29F040(B)/5V
19:01:30.27: Flash ROM ID: 20E2,FFFF
19:01:30.27: Entering emergency mode
19:01:30.77: Flashing BIOS including BootBlock
19:01:39.12: Flashing 262144b long BIOS image to 262144
19:01:40.49: Flashing failed
19:01:40.49: Exiting UniFlash...
19:01:40.54: Intel method: restoring reg $4C from 15138893
19:01:40.54: Turning off logging, shutting down to real mode
------------------------------------------------------------------------------

[NickS]

niceguy167 wrote:

19:01:30.16: CMOS size detected: 128b ---- I THINK THIS IS MY PROBLEM BUT DONT KNOW HOW TO CHANGE IT

Er, not quite. That's 128 bytes of CMOS, not 128Kbytes of BIOS ROM. That's what your CMOS battery backs up, all the stuff you enter via the CMOS setup menus.

[Denniss]

Usually hardware support is needed to flash a rom chip with different size .
Almost every 440BX based Board should be able to flash 128 and 256KB bios but to flash 512KB Bios your hardware has to support it .
Same for 430VX based boards and 256KB chip .
Some succesful flashing reports with oversized Flashroms with Gigabyte's universal Flash utility(based on Amiflash) or even plain Amiflash which works with Award,too .