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T-bred's come unlocked?

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November 27, 2002 3:31:28 PM

I recently bought an XP 2400 (retail)and an A7V8X. I've heard rumors that this board unlocks t-breds, so I changed the multiplier from 15 to 16 and woohoo, 2133 MHz, instant XP 2600 speed at a XP 2400 price. CPU temp hasn't gone up at all, so I might see if I can push it further.

I wonder if it's just the A7V8X that can do this, or does the t-bred come unlocked?

Reminds me of the good old days of OCing before the multipliers were locked.

"There's no such thing as gravity, the Earth just sucks."

More about : bred unlocked

November 28, 2002 2:47:39 AM

Hummm... now I'm jealous! I've got an XP2400+ in an MSI KT3 Ultra2 board and when I tried to change the multiplier it wouldn't boot! I had to clear the BIOS before I could get it back running... so I just figured it was the chip was locked. Now I wonder...

Scout
700 Mflops in SETI!
November 28, 2002 10:59:57 AM

the chips are locked.must be the motherboard.

no matter how hard you try, you can't polish a turd. :]
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November 28, 2002 12:53:58 PM

If it's board feature, it's really a plus!!!

DIY: read, buy, test, learn, reward yourself!
November 28, 2002 1:25:07 PM

Is it definately running faster or just being reported as faster in the bios? have you done any benchmarks?

<font color=red> -- </font color=red><font color=blue>A bush in the hand is worth two birds at the bar</font color=blue>
November 28, 2002 11:09:55 PM

It's benchmarking better too

"There's no such thing as gravity, the Earth just sucks."
November 28, 2002 11:12:23 PM

I'd heard a rumor that the a7v8x was able to unlock the t-breds, so I tried it. I don't know if it's just that MOBO that can do it or all t-breds are unlocked.

"There's no such thing as gravity, the Earth just sucks."
November 29, 2002 12:47:54 AM

All Tbreds can be unlocked with the pencil trick, IIRC.
This board must have had something special.

--
*You can do anything you set your mind to man. -Eminem
November 29, 2002 12:55:49 AM

ok ill clear this up. KT400 mobos unlock ALL multipliers in t-breds. pencil trick DOES NOT WORK. unlocking involves two of the pins underneath. there's a guide on www.ocworkbench.com
November 29, 2002 2:34:02 AM

If I read the OCWorkbench article correctly, it sounds like t-breds are unlocked for default or higher multipliers. For lower multipliers you need to jump two pins.

I'm not sure why you would want lower multipliers. For increasing the bus speed as much as possible?

"There's no such thing as gravity, the Earth just sucks."
November 29, 2002 2:53:28 PM

Sure... if you can get at a lower multiplier, you can really jack the FSB speed and overall that should really help performance. That's what I tried to do with mine and failed, I guess because I didn't do that OCWorkbench trick to get at the lower multipliers. Right now, my BIOS doesn't have any multiplier greater than 15X, so I really can't test the upside multiplers. Maybe a BIOS flash will give more options?

Scout
700 Mflops in SETI!
November 29, 2002 2:55:55 PM

so...do t'breds come unlocked for higher multipliers or is it just a feature of kt400s or what?I wanna get an xp2400 you see so i wanna know whether it's worth getting some super cooling devices and oc'ing.

no matter how hard you try, you can't polish a turd. :]
November 29, 2002 7:01:17 PM

As I said, Tbred Bs are unlockable by the pencil trick, it has been verified here a few months ago.
OR you can get the KT400 boards.

--
*You can do anything you set your mind to man. -Eminem
November 30, 2002 1:14:32 AM

is it only kt400 boards that unlock the t'breds or do nforce 2 boards do it too?if not, do all kt400 boards do it or just the a7v8x?

no matter how hard you try, you can't polish a turd. :]
November 30, 2002 2:07:14 AM

I dunno man, I just said what I know, that Tbred Bs are supposed to be pencil unlockable.

--
*You can do anything you set your mind to man. -Eminem
November 30, 2002 11:40:33 PM

ok.... i have a xp2400 and a7v333 i can get any from 13x to 20x. my cpu is not unlocked. if i unlock it by joining the last set of L3 briges then i could have anything below 13x, my mate has asusv8x his is fully unlocked as yours is. most kt 400s will unlock those chips. mins runing @13x180=2300 on air im well pleased.
December 1, 2002 2:46:40 AM

That's good to hear, that they can overclock fairly well on retail.
I think AMD let go of their policy, assuming that perhaps the resellers just forgot about the lockdown so they would now ship them semi-unlocked knowing most won't realize as they forgot about it.

--
**Canadian joke:
Here we don't say the word "retarded", we say "Alliance"! -Mike Bullard**
December 1, 2002 8:49:56 AM

Also, if you get an epox 8k9a series board apparently you can multiplier overclock without actually unlocking the CPU.

<b>Just because someone's a member of an ethnic minority doesn't mean they're not a nasty small-minded little jerk. <i>Terry Pratchett</i></b>
December 1, 2002 1:00:57 PM

That is something I want enthusiast websites to start trying. I think it can go far if the FSB isn't touched a lot.

--
**Canadian joke:
Here we don't say the word "retarded", we say "Alliance"! -Mike Bullard**
December 1, 2002 8:34:56 PM

If it could be applied to p4's then it would be truly awesome!
However i imagine intel wouldn't be too happy.

<b>Just because someone's a member of an ethnic minority doesn't mean they're not a nasty small-minded little jerk. <i>Terry Pratchett</i></b>
December 1, 2002 8:40:30 PM

If they simply charge extra for an unlocked version, they wouldn't care, we paid for it, they have no reason really!

--
**Canadian joke:
Here we don't say the word "retarded", we say "Alliance"! -Mike Bullard**
December 2, 2002 11:21:37 AM

does anyone know if nforce 2 boards can do this unlocking thing?i wanna get an xp 2400 with an Abit nforce 2 mobo (NF7-S)

no matter how hard you try, you can't polish a turd. :]
December 6, 2002 6:06:37 PM

Some of you were wondering if the processor was really running at a higher speed or not. I finally got home and got a chance to do some benchmarking, and the results show that the proc IS running faster:

Sisoft sandra 2003

2.00 GHz (multiplier default 15)

CPU Arithmetic 7549 Mips 2994 Mflops. CPU Multimedia 11122 Integer 11895 FP

2.13 GHz (Multiplier 16)

CPU Arithmetic 8045 Mips 3252 Mflops. CPU Multimedia 11889 Integer 12653 FP

So however the board is doing it, it IS doing it. I wonder if it's just the A7V8X, or all KT400 boards that can unlock t-breds. Anyone know?

It is a definite selling point for KT400, especially if nforce2 can't unlock the multiplier.


"There's no such thing as gravity, the Earth just sucks."
December 6, 2002 6:14:45 PM

all nforce 2 mobos can unlock the multiplier on any tbred B's.see anandtech's recent review of 6 of them and it says it there.

no matter how hard you try, you can't polish a turd. :]
December 6, 2002 6:50:57 PM

Wow if Anand claimed this out loud, it must be true.
This is an extremly advantageous option here.
You could run an XP2800 at 200MHZ FSB with DDR400 Dual Channel, or simple Dual Channel DDR333 at CAS2 with a multiplier of 11.5, get a tad higher frequency and a massive performance boost as shown by an article I had linked to so many times, at x86-secret.com.
Such performance can likely rival the 3.06GHZ, I've no doubt. Otherwise you can simply overclock and not just keep the clock the same but with higher FSB, therefore get even more performance. I would love to see someone try a 200MHZ FSB nForce 2 with DC DDR 333 CAS2, with an XP2700 or 2800 and even try OCing further.

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December 6, 2002 11:56:36 PM

if i oc'd an xp 2400 to 166fsb, what do you reckon i would have to put the multiplier down to if it was under cheap xp 2800 rated cooling (i.e. not water cooling)?

no matter how hard you try, you can't polish a turd. :]
December 7, 2002 1:16:16 AM

yeah, that gets 12 but i wanna oc it as well so it is not only 166fsb but also faster than 2000Mhz-do you think i can do that under cheap xp2800 rated cooling(coolermaster HAC-V81 for example)?

no matter how hard you try, you can't polish a turd. :]
December 7, 2002 1:20:20 AM

I don't imagine higher than 200MHZ.
At over 2GHZ, Athlons are really heating their muscles up, and it becomes very hard.
A decent HSF like the Alpha PAL 8045 or the Volcano 7+ is needed.

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December 9, 2002 2:15:15 AM

Do any of you guys know if the board unlocking works on the Asus A7N8X. One Report on Hardocp says it doesn't. Then I read an article on Anandtech that says it does. Does anyone have this board and An Athlon XP2400? I would really like to know.
December 9, 2002 2:20:24 AM

A friend of mine has an Asus A7N8X with a 2400. He can change the multiplier in the BIOS, but if he does it will not boot and he has to reset the cmos. So I would say that no, it does not unlock a 2400.

- - - -
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Kill 'em all and you're a god.
December 9, 2002 2:44:43 AM

I recently got a 1700+ Tbred "A" core from newegg and it came to me unlocked. Popped it into my dads AT7 Max and its currenly running 166 x 10 for 1660 MHz. If I had better cooling on it I'd give it more voltage, and more FSB or high mult, but its a good improvement over a 1533 133 FSB 1800+. Especially because the ram is in sync at 333 MHz, and the new ram I did it with is running 2-5-2-2 with everything else cranked.
Now what I'm curious about is, if 2000+ is 1.66 GHz with 133 FSB, what is the PR of 1.66 GHz with 166 FSB?

Gosh I'm such a nerd sometimes, but then again arn't we all. :smile:
December 9, 2002 11:11:47 AM

a7n8x (as all nforce 2 mobos) does unlock any tbred b core xps-that includes xp2400s.see the recent review of the board on anandtech.Toss5000's friend must be having cooling problems or something else.

no matter how hard you try, you can't polish a turd. :]
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