Question about t-bred 2200+ unlocking

[attitude]

I just orderd my new xp 2200+ and i want to over clock it to something like 1933mhz... (btw my mobo is an asus a7v-333)
The questions i have are:
1/ After connecting the L1 bridges it ist possible to continue running the cpu at stock speed? (13.5x133)

2/ Is there any reason to think the cpu would run less stable at 166x11 (33mhz overclock but higer bus) provided pci and agp arent oc'ed. Ofcourse it isnt meant to be run at this bus freq but in general do ppl experience problems with this type of oc?

3/what max speed can i expect my 2200 to run at? (at 133 or 166 bus)

4/ what multipel range can i select after closing the l1 bridges? moast places iv read say 5-12.5)...

 

[Guest]

1. I'm not sure, but i'm going to say yes.
2. It would be just as stable
3. It depends on the core. Tbred B's can go up to 2.2ghz
4. I think it depends on the motherboard, and most motherboards only support 5-12.5 like you said.

Also: For best results, post overclocking questions in the overclocking forum.

 

[attitude]

my motherboard however does support the 2200 so it will go higer then 12.5, rigth now however i can only change up to 12.5 in bios.... i have an 1800 on my board right now.... seemsthare are no jumpers on the board for multippel settings... in the manual it does say i have the choice of going all the way to 14x but i can lonly see up to 12.5x when i enter the bios....

 

[attitude]

cmon anyone else?

 

[rcj187]

im guessing but i think the reason you cant alter the multiplier in the bios is because all axp come with multiplier locks. so they didnt bother putting that option into the bios.. does that sound reasonable to people or am i chatting out my a**e?

I'm out of my mind, but feel free to leave a message.

 

[phsstpok]

Tbreds are already unlocked. No need to touch the L1 bridges.

The reason you can't change multipliers is your mobo can't manipulate multipliers over 12.5x.

To be able to change multipliers you can close the 5th L3 bridge using the "U" trick. This disables the high multiplier bit. Now your mobo thinks you have lower speed CPU (5x - 12.5x) and will let you change the multipliers.

After you make the change you won't be able get 13.5x without restoring the Tbred.

<b>Edit</b>
You might have to change additional L3 bridges. Simply closing the 5th L3 bridge will change your default multiplier from 13.5x to 5.5x. Not sure this will POST.

<b>99% is great, unless you are talking about system stability</b><P ID="edit"><FONT SIZE=-1><EM>Edited by phsstpok on 02/28/03 07:06 PM.</EM></FONT></P>

 

[attitude]

ok great, so ill just maka loop of conductive paint to connect the l3 jumper and then ill be able to choose a multipel freely between 5-12.5 right? Is this sure to work on my asus a7v333 ? Also does this mean the l1 bridges have already been connected?

 

[phsstpok]

Tbreds are already unlocked, yes.

Yup, the "U" trick works for works for KT333 mobos but did you see the addition in my previous POST. Once you close the 5th L3 bridge I'm not sure your default multiplier will work. You could try it but if it doesn't POST you'll have to modify some more L3 bridges to change the default multiplier or undo your work. Remember not to get any conductive paint in the trenches.



<b>99% is great, unless you are talking about system stability</b><P ID="edit"><FONT SIZE=-1><EM>Edited by phsstpok on 03/01/03 02:11 PM.</EM></FONT></P>

 

[attitude]

but if the default goes down to 5.5 will it still be unlocked? i could always set the multipel to manual in bios be4 unlocing (ie to 10) and then do the u trick... the cpu should fire up at a multipple of 10 then right? or does the shitty bios detect a cpu change and go automatic on me then? Id really like to hear from someone who has done this (closed the 5th l3 bredge...).
If someone has plz tell me...

Thanks for all the info by the way...

 

[phsstpok]

Pick a valid multiplier and it will POST. All you are doing is changing the default multiplier when you change the L3 bridges. If you feel more comfortable choose 11x like an XP1700+. These work in your board without mods, right? So you change your L3 bridges and your motherboard thinks your CPU is an XP1700+. Simple as that. Clear CMOS and you system boots at 11x, no problem.

If you want to read about others doing the "u" trick go to usenet, alt.comp.hardware.overclocking.amd. I use Google Groups to get access, <A HREF="http://groups.google.com/groups?hl=en&lr=&ie=ISO-8859-1&safe=off&q=alt.comp.hardware.overclocking.amd" target="_new">http://groups.google.com/groups?hl=en&lr=&ie=ISO-8859-1&safe=off&q=alt.comp.hardware.overclocking.amd</A>. (Don't know if the link will work if you aren't registered).

I did the reverse of the "U" trick. I have an XP1700+. The 5th bridge is normally closed on the XP1700+ (naturally because it needs a multiplier lower than 13). I could change my multipliers in BIOS but since my mobo is limited to about 150 Mhz FSB I could only overclock to 12.5 x 150 or 1875 Mhz. I cut the 4th and 5th L3 bridges which turned my CPU into an XP 2400+ but like you my multiplier is now locked. (In my case it's locked at 15X). Since I wanted to overclock in the region of 2000-2250 mhz this is not a problem. Turns out I can easily get to 2100 mhz, 15 x 140 but in hindsight 14.5X or even 14X would have been a better choice, getting me closer to max overclock with max FSB speed.

<b>99% is great, unless you are talking about system stability</b>