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View Full Version : How do i unlock the T-Bred 2400+?


Keruberne
12-19-02, 08:48 AM
Ok how i unlock the T-Bred 2400+? because i want the low multi

ronin1967
12-19-02, 08:59 AM
Using a very small peice of wire jump, bend it into a 'U' and place in the location in this picture. Then slide the processor in.

http://home.earthlink.net/~ronin1967/unlock_2400+.gif

dpw2atox
12-19-02, 09:08 AM
what type of wire is recomended?

ronin1967
12-19-02, 09:10 AM
Anything small enough to allow you to put the processor back in, I think I used phone wire or maybe a peice of cat-5(stripped of course). All you are doing is jumping the two pins that go in those holes in the picture.

hec
12-19-02, 06:23 PM
I'm running an asus a7s333 and a athlon xp 2400. I followed the instructions and unlocked my T-bred successfully.

I used a few pieces of tiny wire that I twisted up together so that they wouldn't break or get outa place, the processor fit back in fairly snug.

Anways I booted it up and I had multiplyers 12.5 and lower. Now I have a problem with this because I thought i'd be able to get a crack at a 14X multiplier or a 13X multiplier. well I tried booting at 150X 12.5 just to see if it would do it, it didn't boot into windows properly. Then I ajusted all my ram timings, I then tried 160 because thats what I need to get to in order to get the processor even close to 2000mhz. It booted and I tried to load windows and it wouldn't load. So i set my cpu bus/ ram ratio to 4/3. It seemed like it was doing better but still had some problems.

so i took it apart and switched back to the 15+ multipliers, set my bus at 140 where it was b4 for the 2100mhz. Oh well :P can tell you one thing though the next board this CPU will be on will be Nforce2 or better.

I'm not sure if it was my ram that was the problem, it seemed so at first. but with the ram cpu bus speed fix, that shoulda done it. I remember reading a few reviews on the board that said the highest they could get was 158(316)mhz and the board was heavily modified. I wanted to shoot for 14X150 or 2100mhz and 300mhz bus, that woulda helped put me up to par. Well for my setup it wasn't worth it trying to unlock it, but I guess I did learn a thing or two it was my first multiplier mod.

nealric
12-19-02, 06:29 PM
Im confused- It was my understanding that the tbreds were factory unlocked :confused:

hec
12-19-02, 07:16 PM
my t-bred B 2400 is unlocked from 15-20 from the factory. The wire trick that was mentioned above, that I tried and untried, will unlock 12.5 and lower; however, when it is used it appears to lock everything above 12.5.

15-20 are factory unlocked. I heard something about nforce2 boards and multipliers but I don't have the information here with me. It would be nice if AMD woulda allowed a user to choose from 10-20 instead of 15-20. I dunno I just wish there was a 14X multiplier I woulda had the chance to go 300mhz bus and 2100 mhz cpu. I don't have a great power supply and the a7s333 I have will probably go 150 at the most with a few tweaks so I don't want to risk putting the cpu too high for the voltage or the bus too high from lack of 14 multiplier, I'll just stick with this setup for now I"M happy.

toastedzergling
12-19-02, 08:43 PM
Originally posted by ronin1967
Anything small enough to allow you to put the processor back in, I think I used phone wire or maybe a peice of cat-5(stripped of course). All you are doing is jumping the two pins that go in those holes in the picture.

Don't use a wire that's too thin, I've used a wire from a broken headphone and it did nothing! Took out the CPU, the wire was still there:D

hec
12-19-02, 09:58 PM
I think the best thing to do is get one of thoes telephone wires, cut it so its about 5 inches long, strip it and get one of the colored smaller wires, then strip about a inch, then twist it a whole lot, twist it so its like a thin twizzler, cut it to be about a quarter inch and try to stick it in (make sure its the right holes, also make sure you do not drop any thin strands of wire anywhere on the board), when i did it my wire was really really twisty and thin, it worked out great, the processor fit in snug. I had to take it out though right away because 12.5 and lower didn't help me, i needed a 14X multi.

mage_x
12-19-02, 10:15 PM
does this work for all motherboards?

kiljaden5
12-19-02, 11:21 PM
Originally posted by hec
15-20 are factory unlocked.

are you sure about this?? I thought it was 12.5 and higher... maybe on KT400 and nforce2 chipsets more multipliers are unlocked?

hec
12-20-02, 03:20 AM
Thats a good Question Kiljaden5. I have mixed results so maybe some t-breds are unlocked more than others. There are a few different T-bred steppings, mine is the one with the G in it, not the C.

With my 2400, and my motherboard asus a7s333, the only ones i booted at before the wire trick were 15-20. after the wire trick i had 12.5 and lower. I have tried 14 and 13 and it wouldn't boot, however I never tried 12.5 so its possible that those are unlocked too. Come to think of it i'd probably have to try to boot it up on each one to really know for sure.

Grimace
12-20-02, 04:01 PM
I just read in the latest CPU magazine that all you have to do is connect the last L3 bridge to unlock the lower multipliers.

Taken Directly from CPU magazine, Jan. 2003, by Kyle Bennett:

We have seen stable overclocks with the 2400+ at 2.4GHz and better. That is even with the same cooling. There are some "lucky" chips out there for sure, and the best way to figure out what is what is to hang around in many of the hardware site forums - as you know, guys talk - and you hear things. You should be able to find the Athlon XP 2400+ online for around $190 shipped. One more thing you will need to know: just short the last L3 bridge on that CPU to unlock multipliers from 12.5 down.

Whatdya think?

(I hope this don't violate any copyright laws or anything. Cuz that would suck).

HeXaDeCiMaL
12-20-02, 04:29 PM
Originally posted by Grimace
I just read in the latest CPU magazine that all you have to do is connect the last L3 bridge to unlock the lower multipliers.

Taken Directly from CPU magazine, Jan. 2003, by Kyle Bennett:

We have seen stable overclocks with the 2400+ at 2.4GHz and better. That is even with the same cooling. There are some "lucky" chips out there for sure, and the best way to figure out what is what is to hang around in many of the hardware site forums - as you know, guys talk - and you hear things. You should be able to find the Athlon XP 2400+ online for around $190 shipped. One more thing you will need to know: just short the last L3 bridge on that CPU to unlock multipliers from 12.5 down.

Whatdya think?

(I hope this don't violate any copyright laws or anything. Cuz that would suck).

Connecting the last L3 bridge works perfectly I did this about 2 weeks ago, been running at a solid 12.5 x 166 with a XP2400+ since then :) good thing is you don't even need to fill teh trench you can just make a U of silver paint around the trench, took me all of 15secs to unlock it this way, infact it took longer to shake the bottle of silver paint than to unlick the CPU lol :D

TweakOC
12-30-02, 11:22 PM
I just unlocked mine but i didn't really have all that success i think my comp suck in that point but w.e

AMDnitromike
12-31-02, 01:04 AM
not knowing curtis.

dawp
12-31-02, 04:04 AM
with my mobo,epox 8rda,the multipliers are unlocked.have had it set to as low as 10 and default of 15,currently at 12.with no chip mod.

thadude2
01-02-03, 08:13 AM
nForce2 mobos unlock all Tbred-B's without any physical intervention to the cpu

BurntCPU15
02-10-03, 10:18 PM
Hey, Just wanting to know what your cooling device is, I have a watercooling kit but my temps arent near that low.:mad: