Anyone connected L6 & L7 bridges to boot at higher FSB?

[bpratt]

Has anyone connected the L6 & L7 bridges on a Duron to boot at a higher FSB as per AnandTech's "VIA's KT133A - Overclocking with the 133 MHz FSB" article? http://www.anandtech.com/showdoc.html?i=1440&p=1

If so, how did it work - were there any problems? How much would I gain by running the Duron on a 133 or higher FSB?

Anyone know if closing the L7 bridges, to set core voltage, only affects the voltage during boot or also after boot? Example - can I close bridges to set boot Vcore to 1.85v but run with 1.8v as per the BIOS setting?

Also, the article reccomends using an engraving tool to cut bridges - anyone have a better idea?

Many thanks for any help, Bill


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Duron 700@969 & PAL6035
MSI K7T Turbo, 256MB Kingmax PC150
IBM 75GXP, 7,200 RPM, 20Gig HD
Fong-Kai FK603 case & Enermax 350W PS
Matrox G-450 & Iiyama Pro 17
Mitsumi 48X CD & 250 internal Zip
Linksys 10/100 Ethernet
Win 98 SE

[This message has been edited by bpratt (edited 04-27-2001).]

[Justintime]

as long as you're using a board that can change the vcore, yes you can lower it, so that after boot it lowers itself, you're just basically changing the 'default' vcore.
i use a dremel, but sometimes a sharp razor blade works for me, don't recommend it though , and no problems after, longs as everything is joined/cut right, good luck

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Jr

[flat-v8]

I closed all the L7 bridges on a Duron 600 to force it to boot at 1.85v, then set the voltage in bios to 1.8 to reach 950, and it works just fine. Gonna be building a T-Bird sys soon and will probably have to work on L6 as well to reach 133+ FSB, but have never tried that yet.

[Dr. MASS]

On a Duron 750Mhz what demands doing on that ?

I want to run my cpu at 133Mhz fsb isntead of 7.5x100.

Currently I´m running 7,5x113 100% stable.

I´m burning in my cpu aswell with those ....@home products ;D

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Duron 750@864Mhz
http://www.ocgurus.com/listings/queryputer.asp?PuterID=206
Dual Celeron 366@550Mhz
http://www.ocgurus.com/update/default.asp?PuterID=204
P2 350Mhz,192MB(DELL)
P-100Mhz,48MB(COMPAQ)
P-90Mhz,40MB(COMMODORE)
486Dx2/66Mhz,36MB(COMPAQ)

[Justintime]

http://www.weethet.nl/english/overclock_duron4.htm


http://www.weethet.nl/english/overclock_duron5.htm

hope this helps

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Jr

[This message has been edited by Justintime (edited 04-28-2001).]

[Turkka]

Are the T-bird multiplier bridge (L3,5,6)conditions same as for Duron?

If not, anyone got them for T-bird? I need to change multiplier.

(Preocessor is AXIA core 1Ghz 133FSB)

[Justintime]

same, only difference is the cache

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Jr

[Justintime]

Turkka, if your board xan change the multiplier by jumper or bios,all you need to do is join the L1 bridges, because it's already 133FSB compatiable with a 7.5x Multiplier.

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Jr

[outside looking in]

I had to modify the L6 bridges of my 1.2 Tbird to get it to boot at 133+ FSB.

Before you go cutting traces though, take a good look at the combination your chip has now, and the coding for other combinations, and make sure there isn't a lower default multiplier you can set it to by simply re-connecting traces that are cut. That was the case with my Tbird... I was able to connect cut traces to get a multiplier (not the lowest, but low enough) that would let it boot. You don't need a multiplier of 6, just one low enough.

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Those who fear the facts will forever try to discredit the fact finders. - Daniel C. Dennett

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Dual Palomino @ 1.9 GHz
3 X15 Cheetah's in Raid
2GB DDR SDRAM CAS 2 @ 400 MHz
Radeon II
smokin' crack...

[crane]

Thanks for the links,Justintime cleared up a lot for me. So my K7t turbo board has multiplier and voltage mods in the bios, just close L1, correct? thanks again

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only thing that seperates humans from the animals is that we're not afraid of vacuum cleaners

[Justintime]

is the K7T a 100FSb (200fsb ) board? if so, then yes, all thats needed is the L1 joining

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Jr

[crane]

Yes.. it is a 200/266 board.
What I wanted to do was lower the multiplier and raise the FSB, But this bios only goes down to "default" and up to 12x on the multiplier. Default being 7.5 in this case as what my duron is . bios upgrade is a possibility I suppose. kinda shy of those flash upgrades though. ::chills::

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only thing that seperates humans from the animals is that we're not afraid of vacuum cleaners

[Justintime]

if it only goes down to default ,then you'll have to alter the other bridges to change the default to 5.5X for 733Mhz, but...well....you CAN overclock! and if that cpu can do a Ghz (7.5X133), well, why not? you can alter the L7 bridges to 1.85V default and get some good cooling and hope she does a Gig!

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Jr

[grover]

How do you dial in a mult above 12.5?

[Turkka]

Dammit, the bridges are hard to cut. I need a good tool for this. I don't have dremel, and as I understand it would be a good tool for the job.

Thanks OLI for the easy-lower multiplier tip. I can see why it should be left possible


And for 12,5X +
I don't think there are mobos supporting higher multipliers on K7 boards. Willamette mobos have... but so what?