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KA266 First impressions of 1.3 "C"

W

WouterK

Member
This afternoon Iwill received from Taiwan the long awaited "C" Rev 1.3. This version fixes a number of issues, inclusing BIOS CPU Vcore adjustment. And I was so lucky to update my board with this new revision. And yes, I am now very satisfied.

I was able to run my 1.2Ghz Tbird all the way up to FSB of 146. It was not 100% stable, and Sandra 2001 numbers were great (RAM 612/790) using WIN2k and PC2100 Crucial memory. 100% stable at 142.


This board (now available in quantities) has a new manual, and documents the "undocumented" CPU FSB & Memory Speed settings Off/On 100 or 133Mhz. This was the key to get these GREAT numbers, and make my 1.2 Tbird (200) run great at 133 and higher...I am only disappointed that my 1.2 Tbird runs max at 1280. (hoped for 1350 min.)

This board is VERY stable (contrary from what I hear of the AMD761 boards), and it is a wonderful overclocking motherboard -- BIOS FSB and CPU vcore, and multiplier by jumpers. In addition you can up the VMEM Voltage settings to increase DRAM stability during overclocking.

Only question I have is, why the KA266 supports synchronous CPU & memory speed. What does that mean??? I hear the AMD761 uses asynchronous, and you can't mix 100 and 133 CPU's. True? And will this board support the Palomino/Morgan CPU's?

 


<< Only question I have is, why the KA266 supports synchronous CPU &amp; memory speed. What does that mean??? I hear the AMD761 uses asynchronous, and you can't mix 100 and 133 CPU's. True? >>



It means if you are running a 200Mhz Athlon/Duron you can only use it with PC1600, and 266Mhz with PC2100. Of course you can just up the FSB to 266 on a regular Athlon/Duron (and lower the multiplier if need be) to run it with PC2100. AMD's 761 is the same way: not asynchronous. At least I believe that's how it goes...
 
From what I understand, the latest Abit and Iwill boards can, with the ASUS being a maybe. I read that most current boards posses power control circuitry that can handle the lower voltage the Palomino will use, but not all of these boards can handle the higher current, at these lower voltages.
I guess the ASUS boards are borderline. I wish I could ay where I read that, but I cannot remember.
 
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