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Advice! Will this MB support p3-833/133?

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a b V Motherboard
April 17, 2002 3:11:32 PM

The MB is a Soyo-Tek SY-6BA+III 440BX

Info at this link:
http://store.yahoo.com/justdeals/soysy6motslo2.html

Will this work with a P3-833 133mHz? And with PC133 RAM?

Any insight would be helpful. I need to replace a dead MB quickly and this is really the best I could find anywhere.


<P ID="edit"><FONT SIZE=-1><EM>Edited by Tikigod on 04/17/02 11:12 AM.</EM></FONT></P>

More about : advice support 833 133

April 18, 2002 12:24:33 AM

Intel 440 BX supports up to 150 MHz FSB. You just need to be sure that the motherboard supports FSB 133 and PCI divisor (4) in order to get 33 MHz and 66 MHz for AGP.
a b V Motherboard
April 18, 2002 5:44:37 AM

Yes and no. I own that board, and had no problems running a PIII 1000EB at 1125MHz!!!

This board supports ALL PIII Coppermine CPU's. That includes the "EB" versions, which are the ones with 133FSB. These include the 533, 600EB, 733, 800EB, 866, 933, and 1000EB. It also supports all the other speeds, but those use a 100MHz FSB so your better off with the speeds I listed. Notice there is no 833. PIII CPU's come in multipliers with .5 intervals, so the 800EB uses a 6x multiplier (6x133=800), and the 866 uses a 6.5x multiplier (6.5x133=866). An 833 would require a 6.25x multiplier, which doesn't exist.

What's the frequency, Kenneth?
Related resources
April 28, 2002 6:42:11 AM

Thank you for this answer. I have been trying to solve the maximum CPU supported? problem for several days on Soyo SY-6BA+ series and Epox EP-BX7+100 motherboards. Technical support at both sites were not helpful. The article [CPU Scaling Analysis, Part 2: Intel Penrium III Scaling and Upgrading/url]and [Last Passing Maneuver: Tualatin 1266 with 512KB versus Athon and P4/url] were helpful to suggest they would support faster frequency/FSB PIII's with Coppermine cores but not PIII's with Tualatin cores. However, I was not sure (including the larger heatsink needed on PIII 1 GHz that might hit the capacitors). And now the question: Would these motherboards also support the rereleased PIII 1.13 GHz CPU, or does it still need the micorcode update which makes it incompatible with motherboards with older BIOS?

Thanks
a b V Motherboard
April 29, 2002 2:14:11 AM

The Microcode update is included in all modern BIOS's, which started in ~1999-2000 BIOS revisions for most BX boards. As to whether your particular board supports Coppermines at all depends on the type of voltage regulator, VRM 8.2 would support down to 1.80v or 1.85v, while VRM 8.4 went much lower. Most boards that cannot support the proper voltage will not boot with a Coppermine, however a coppermine with the detected voltage modified to 1.85v will work in most VRM 8.2 boards.

If your board supports ANY Coppermine processor, it supports ALL Coppermine processors. The only exception I know of is the Asus P2B series, which had a BOIS hungup with multipliers higher than 10x, which only eliminated the Celeron 1.1GHz, and is fixable through a third party BIOS.

So Basically, if your boards can support the proper voltage, you can use any Coppermine you choose. If they don't support the proper voltage, you can cheat by using an adjustable slotket set at 1.85v, or modify one yourself.

Now, Slot one converters usually only limit you to the height of the cooler, you don't want to cover your memory slots with the cooler. Intel's boxed cooler is usually short enough.

Tualatins=no. You can make them work with the iP3/T adapter from Powerleap. Due to Intel's new packaging, the only way to tell a Tualatin from a Coppermine in some situations is to look at the voltage. Tualitins use 1.475v, Coppermines 1.65-1.75v.

What's the frequency, Kenneth?
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