Mobile XP 2600+ on Epox 8KHA+ (VIA KT266A)?

|TOAST|

Senior member
Dec 21, 1999
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Will this work? I saw that the upper end for specifying multipliers in the BIOS is 15.5 on their website acording to its manual. I haven't checked the BIOS but it is the current one. I suppose the board revision matters too (rev1.3 vs rev2.0) and I imagine I have the rev1.3. I ordered two of these to upgrade my old computer (eventually for my family) with the slower OCing CPU for the one I am building now (I know the multiplier won't be unlocked as it is on the nforce2 boards - which I am using for my current build). Would the multiplier default to the highest setting (15.5x) or accomodate the 16x multiplier?
 

myocardia

Diamond Member
Jun 21, 2003
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As far as I know, the multi the mobile chips always starts at 6x, and has to be raised manually in the bios.
 

|TOAST|

Senior member
Dec 21, 1999
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Isn't that for nforce and nforce2 chipsets only? This is part of my confusion/question.
 

zephyrprime

Diamond Member
Feb 18, 2001
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I have this same combo. The multi starts at 6 or 8 (can't remember) and the highest multi supported is 12.5 (despite the MB bios saying otherwise.) I use crystal CPU ID and it's able to set the multi up to 15x. Higher multis aren't allowed even the crystal cpuid supports higher multis. It seems like the chip is locked. By the way, a lot of people and sites say the the 2600+ runs at 2133mhz but it seems like the chip is actually only a 2000ghz chip according to my experience and the HP website.

The 2800+ mobile should be coming out soon so it may be a better choice.
 

|TOAST|

Senior member
Dec 21, 1999
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Thank you EPoXTech. I've seen that document and suspected as much, but still wondered if it could be done since the bus speeds are identical.
 

maluckey

Platinum Member
Jan 31, 2003
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Yes, it should work in the Epox board. It runs fine on the Abit KR7a-133 (KT266a). If you want the higher multipliers, you have to set the CPU manually to high range via the L3 SYSCLK multiplier, and set the default multiplier to something over 12.5x. The common setting is 13.5x. The L6 bridge is the Mobile Barton FID. At this point you can run it at a safe 166mhz x 13.5x, and enjoy the extra speed. You could also run it at even higher multipliers, using 133 Mhz FSB if OC'ing the FSB isn't your style.

A good link that includes the mobile Barton L6 bus

I have heard of people closing all the L6 bridges, and setting the L5 to read as a desktop CPU, but I haven't actually seen it done, nor would I want to take the time to test it.