View Full Version : duron L& bridges
vanibanez
12-04-01, 12:34 PM
What is the excact purpose of the L& bridges on the duron? And what happens when you join them up? Currently mine is locked but I did unlock the L1 bridges already.
vanibanez
12-04-01, 12:35 PM
oops L7 bridges :)
minoukat
12-04-01, 01:26 PM
**IF I'M NOT WRONG** the L7s are for default voltage, if you close them all, I think it gives you a default voltage of 1.85v **MAYBE**. Someone else will certainly confirm that or correct it to say the real signification.
flounder43
12-04-01, 01:28 PM
The L7's set the default voltage. Depending on which ones are connected and which one's are not, you will get different voltages. If they are all connected, you get 1.85V.
My Duron 750 is set to 1.85 and is running at 1.0Ghz. I am not sure if I need all of that voltage, but I just set it to the max and went with it.
flounder43
12-04-01, 01:33 PM
This is a diagram of the L7's for reference, I think I got it from Tom's Hardware...
Originally posted by vanibanez
What is the excact purpose of the L& bridges on the duron? And what happens when you join them up? Currently mine is locked but I did unlock the L1 bridges already.
If you connect all the L1 bridges together you will have an unlocked cpu meaning you can change the multiplier with a board that supports multiplier adjustment of course. 6x100=600mhz 6.5x100=650mhz 7x100=700mhz 7.5x100=750mhz and so on and so forth adjusted via jumpers or bios
The L2 bridges I dont think are used or modified
L3&4 are used in conjuction with the l6 bridges to adjust the multiplier
L5 not used or modified
L6 with this bridge and the L3&L4 bridges you can adjust the multiplier on a mobo that doesnt support the alteration
L7 bridges are used to modify the default core voltage of a cpu
Read this www.overclockers.com/tips158/ (http://www.overclockers.com/tips158/)
big_dave
12-04-01, 02:38 PM
I have connected all my L7 bridges but in the bios it is still only saying the vcore voltage is 1.6 instead of 1.85 i can't change the vcore through the bios can anyone help?
Originally posted by big_dave
I have connected all my L7 bridges but in the bios it is still only saying the vcore voltage is 1.6 instead of 1.85 i can't change the vcore through the bios can anyone help?
You have to make sure you connected the bridges properly. If you used a pencil try erasing the marks and do it again or you could buy a conductive ink pen and try that.
big_dave
12-04-01, 02:57 PM
So when i connect the L7 bridges it should say 1.85 instead of 1.6 in bios? i dont think i went over it enough times with the pencil i'll try it again 2moro
Originally posted by big_dave
So when i connect the L7 bridges it should say 1.85 instead of 1.6 in bios? i dont think i went over it enough times with the pencil i'll try it again 2moro
There seems to be some confusion on this. Closing the L7 does not change the default voltage. The L7's control the POST voltage. The proc is set to POST and run at 1.6V by default. Closing all the L7's will allow the proc to POST at 1.85V. Thereafter the vcore is controlled by the BIOS setting. The vcore is always and remains at 1.6V by default unless other mods are made.
The L7's really only need to be closed if there are problems on POST @ 133 FSB. In most cases it is unnecessary. The main mod is the closing of the L1's to give access to the multiplier.
I'm cofussed by what your said Tiger , There seems to be some confusion on this. Closing the L7 does not change the default voltage. The L7's control the POST voltage. The proc is set to POST and run at 1.6V by default. Closing all the L7's will allow the proc to POST at 1.85V. Thereafter the vcore is controlled by the BIOS setting. The vcore is always and remains at 1.6V by default unless other mods are made.
The L7's really only need to be closed if there are problems on POST @ 133 FSB. In most cases it is unnecessary. The main mod is the closing of the L1's to give access to the multiplier. I happen to know from my own experiences that closing the L7 bridges does change the default core and it does post correctly in the bios when the bridges are connected correctly .
I rebooted just to make sure and the bios says 1.95v so I know the default is 1.85v cause the 8k7a feeds an extra .1v to the cpu.
Originally posted by vanibanez
What is the excact purpose of the L& bridges on the duron? And what happens when you join them up? Currently mine is locked but I did unlock the L1 bridges already.
DE JA VUE!;)
flounder43
12-06-01, 05:18 PM
Originally posted by Tiger
There seems to be some confusion on this. Closing the L7 does not change the default voltage. The L7's control the POST voltage. The proc is set to POST and run at 1.6V by default. Closing all the L7's will allow the proc to POST at 1.85V. Thereafter the vcore is controlled by the BIOS setting. The vcore is always and remains at 1.6V by default unless other mods are made.
The L7's really only need to be closed if there are problems on POST @ 133 FSB. In most cases it is unnecessary. The main mod is the closing of the L1's to give access to the multiplier.
Final answer: connecting the L7's, (absent any other component which also changes the voltage), will put the voltage up to 1.85. On my epox mobo, I can change the voltage in the bios, so I don't need to do the pencil trick. On my ECS, however, I needed to modify the voltage on the cpu, because the bios on that mobo won't let me do any adjustments...
Look above at the picture that I posted...those are the voltages that will be set when those bridges are connected.
let me jump in to this convo here.... i have a bcm q750 i think it is.. it is a piece of shiz mobo that only goes up to 750mhz .... if i oc the t-bird is there anyway for my to get that piece of **** to recognize it?
Sorry, I apologise that I am incorrect about this resetting the default vcore voltage. But having said that in most cases it should not be necessary to do this unless the proc is being run at 133+ FSB when default is 100. For those of you who want more info on this, the original info was from AnandTech and the articles are;
http://www.anandtech.com/showdoc.html?i=1345&p=4
and ;
http://www.anandtech.com/guides/showdoc.html?i=1440&p=1
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