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KT7A @ 133FSB

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New Member
May 15, 2001
I got a KT7A mobo and a 1.333GHz AXIA last week. Since then I have had problems booting with the FSB set to 133. With the default voltage settings it does not detect my hard drive. I am able to boot if I lower the IO voltage to 3.2, but I have to reset several times and usually enter the BIOS setup before it will detect the hard drive. Once it does boot, I get file read errors from both the hard drive and CDROM. When I boot at 12.5x104 Win2k is rock solid stable.

Here's my setup:
350W PS
Abit KT7A
1.333GHz Thunderbird w/Swiftech MC370-0A
256M Crucial PC133 Cas2
Voodoo3 2000 PCI
Diamond Monster MX300 soundcard
Tekram DC390F SCSI
Plextor Ultraplex Wide
3COM Nic

Any thoughts or ideas?



Mar 14, 2001
My KT7A-RAID also doesn't like 133 mhz FSB either, I am a little disappointed with this, not what i've come to expect from Abit.



Apr 28, 2001
Kingwood, TX
Are you using the 133-44 fsb setting or the 133-33 fsb? When I try the 133-44 I cant post at all, but the 133-33 setting does great. The latter is right under the 100-33 setting in the bios at the top of that selection.


Feb 18, 2001
I've find a new bios ZT and now it works great at 140X10 (not possible with WW bios).You can find it here:

This bios is official