Barton unlocking exactly how?

[VisableAssassin]

I have an ABIT KD7-RAID mobo which so far has let me gain access to every multiplier I can think of on a few T-breds I have tested it with (currently 2400+ @ 2403mhz)
now I am looking at getting a 2500+ barton later on this month or so....car payment is being a pain LOL.
but my question is this since I can never get a straight answer I am asking here.
Will my mobo allow me access to higher multi's than 12.5 on this chip since in theory its pretty much the same core as a normal t-bred but with extra L2. Or will I have to unlock it?
Now when unlocking I have seen the last L3 bridge connected which gains 12.5 and below and the "pin trick" which so far from what I have seen is the same. Im flashed to the newest BIOS so that is no problem.........its just will my mobo let me have access to it? If not then how do I get ALL the multi's unlocked.......close all the L3's ?

Thanx guys

 

[VisableAssassin]

Honestly no one has an idea?

 

[bgeh]

honestly, i think that it should be the same way as unlocking the T-Bred B chips
i've read a few articles that state that the barton is nothing more than a T-Bred B with extra 256kb l2 cache

 

[pillage2001]

Originally posted by: bgeh
honestly, i think that it should be the same way as unlocking the T-Bred B chips
i've read a few articles that state that the barton is nothing more than a T-Bred B with extra 256kb l2 cache

It's a fact that the Barton is nothing more than a Tbred with 512kb l2 cache.

 

[VisableAssassin]

Originally posted by: bgeh
honestly, i think that it should be the same way as unlocking the T-Bred B chips
i've read a few articles that state that the barton is nothing more than a T-Bred B with extra 256kb l2 cache

so in essence since my board ulocksmy multis from jump just throw the thing in here and go eh?
LOL
thing is I can find how to unlock the lower multipliers but not the higher ones.

 

[LED]

There' a wire pin tric that unlocks them which I'll prolly use on my Retail Barton...cause I want it to last or be returnable for the next few years

 

[VisableAssassin]

Originally posted by: LED
There' a wire pin tric that unlocks them which I'll prolly use on my Retail Barton...cause I want it to last or be returnable for the next few years

yeah but does that wire trick unlock the HIGHER multi's tho?
in the "how-to" i saw the highest they used was like 10 or 10.5 which is worthless to me.

 

[LED]

Up to 12.5 and X 200 would be 2.5GHz...good enough for me since I'm have the XP 2500 coming

 

[VisableAssassin]

Originally posted by: LED
Up to 12.5 and X 200 would be 2.5GHz...good enough for me since I'm have the XP 2500 coming

I can do 200mhz FSB with no problem however running my PCI bus outta spec THAT far bothers me.
ive got one HDD in my setup that cant handle more than 186mhz FSB anything over that the drive corrupts. hence the need for higher multi's

 

[KF]

Naturally I have no personal info about the Bartons since I don't have one. I assume AMD is using the same bridge arrangement as for Tbred Bs. From the photos, it looks the same.

Therefore the L1s are joined (no Laser cuts visible) and so Bartons are unlocked. Your mobo (I guess) does not have the facitlity to control the 5th multiplier bit. Therefore it is set to whatever the 5th L3 bridge is set to. If it is closed, it is set low and only the multipliers 12.5 and below are accessible. If it is open, it is set high, and only the multipliers over 12.5 are accessible. That is simply because your mobo is only controlling the low 4 bits of the multiplier code.

The easiest pin trick to find joins two CPU pins. One CPU pin happens to go to the 5th L1 bridge. The other pin is ground, or low. That makes only the lower multipliers available.

There is a similar trick which joins the 5th L1 bridge (through the CPU pin) to another pin which happens to be high. That makes only the higher multipliers available. You will need some info on what to set the multiplier to in the BIOS in order to get which higher multiplier; it is not obvious. In addition multipliers 13 to 14.5 often do not work (no boot). If your CPU comes from the factory already with the 5th L3 set high, you do not need this trick; in effect it is already done.

Search on johncar and soulkeeper for links and more details.

 

[meson2000]

I am also interested in unlocking the higher multipliers on my new Barton 2500+
I can get all multipliers 12.5 and below on my ASUS A7N8X Delux.
However, I can't get 13 or higher. I had a hard time following what pins on the Barton
I have to cut in order to get access to the higher multipliers in my BIOS. Is it the 5th L1 bridge
or the 5th L3 bridge?

Also, what is a good tool to cut the bridge with?

 

[LED]

It's the 5th L3 Bridge...the last one towards the Center of the square. It only enables 13