Locked Barton's?

MJOMJO Denmark New
edited November 2003 in Hardware
What's this?

I am hearing that some new Barton's are multiplier locked.
And they cannot be unlocked, even on the nForce2.
There is a discussion in a danish newsgroup.
And I would like to hear if you have had similar experiences.

Here are some steppings

Locked:
AQXCA 0340
AQXEA 0341 MPMW

AQXFA 0339
AQXFA 0340 MPMW

AQYFA 0340
AQYFA 0341 TPMW
AQYFA 0342
AQYFA 0343 RPMW

AQZEA 0341 RPMW
AQZFA 0339 UPMW
AQZFA 0341 SPMW
AQZFA 0341 XPMW
AQZFA 0342 TPMW
AQZFA 0342 UPMW (multiple confirmations of both locked and unlocked chips)



Unlocked
AQZEA 0334
AQZEA 0339 UPMW
AQZFA 0340 UPMW
AQXFA 0340 TPMW
AQXFA 0340 MPMW
AQZFA 0340 SPMW
AQZFA 0342 UPMW (multiple confirmations of both locked and unlocked chips)
AQZFA 0342 TPMW

EDIT: List updated
Info borrowed from.
Forum-OC

Comments

  • ThraxThrax 🐌 Austin, TX Icrontian
    edited November 2003
    This would be a massive suck-fest if this were true.
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited November 2003
    http://www.short-media.com/forum/showthread.php?s=&threadid=5993
  • NosferatuNosferatu Arizona
    edited November 2003
    This is kind of off-topic, sorry... but is there any way to find out the stepping of your CPU without physically looking at the chip itself? My heatsink was a pain to get on and i don't want to take it off unless I need to! I don't think it's possible, but I just thought i'd ask!
  • MJOMJO Denmark New
    edited November 2003
    Aha I see the topic has already been discussed.
    It seems that it is true.
    What good is a nForce2 board then? ;)
    I want to autounlock my chip :)
    BTW: Does that speedstrip thing work on these new steppings?

    I am not surprised that AMD has begun locking their chips.
    It wasn't all that hard to unlock them with pencils and conductive ink.
    But it is too easy on the nForce2, you just fit the processor and you are off OC'ing.

    To mf4:
    Unfortunately not, you will have to unmount your HSF.
  • MJOMJO Denmark New
    edited November 2003
    BTW just to clarify things.
    What is the difference in the actual speed of a Barton and a T-bred?
    I am not talking Mhz.
    I would like to know whether or not I should run out to get a Barton or be happy about my T-bred.
  • ketoketo Occupied. Or is it preoccupied? Icrontian
    edited November 2003
    With your setup, given that the cpu speed's were the same (you'd likely get a better OC out of a 2500+ but that's not the discussion), you'd likely see 2-3% performance increase, depending on what apps. Very much NOT worth the $ if your 1800+ can run everything you need @ 2.0GHz.

    I'm sticking with my 2100+ even though 2500+ Barton's are dirt cheap now.
  • CreepCreep Hell Icrontian
    edited November 2003
    MJO had this to say
    What good is a nForce2 board then? ;)
    I want to autounlock my chip :)

    I am not surprised that AMD has begun locking their chips.
    It wasn't all that hard to unlock them with pencils and conductive ink.
    But it is too easy on the nForce2, you just fit the processor and you are off OC'ing.

    Mother Boards do not unlock CPU's, they come from the factory unlocked. My SoYo KT-400 is "Plug and OC"
    MJO had this to say
    BTW just to clarify things.
    What is the difference in the actual speed of a Barton and a T-bred?
    I am not talking Mhz.
    I would like to know whether or not I should run out to get a Barton or be happy about my T-bred.

    The difference is the FSB, Bartons are 333 and T-Breds are 266. But Most of the TBreds are OC'able to 333 if not more.
  • MJOMJO Denmark New
    edited November 2003
    That isn't entirely true.
    You would have to connect the L1 bridges if it wasn't for the MB doing it for you.
    You could also use the wire mod in the socket.

    Maybe two types of locks should be defined.

    Intels hard locked multiplier.

    And Amd's multiplier that can/could be unlocked with L1 bridges, wire mod or a nForce2/KT400 board.

    My T-bred is running at 400Mhz fsb.
    What I meant is actual application speed.
    Will I notice any differences in for example MP3 encoding?
    Using a T-bred or a Barton at the same speed and FSB.
  • ThraxThrax 🐌 Austin, TX Icrontian
    edited November 2003
    Creep had this to say
    Mother Boards do not unlock CPU's, they come from the factory unlocked.

    That's entirely misguided.

    The nForce2 and KT400 chipsets specifically use a feature called 5-Bit FID Over-ride. FID is frequency identifier, or the actual title for what the L11 bridges on tbreds+bartons, and the L1 bridges on palominos + thunderbirds control.

    The 5-Bit FID over-ride is responsible for making connections with the VSS pins to a ground, the VSS pins being the pins that transmit the L1/L11 status to trick the CPU into thinking it's unlocked.
  • croc_croc_ New
    edited November 2003
    http://www.excaliberpc.com/product_info.php?manufacturers_id=12&products_id=2995

    AMD Athlon XP2500+ 1.83GHZ BARTON(RETAIL)(AQZEA:0341RPMW)

    I wonder ?

    oh and look

    http://www.excaliberpc.com/product_info.php?manufacturers_id=12&products_id=1094

    AMD Athlon XP1800+1.53GHZ 266 Tbred (Tray)(DLT3C:JIUHB:0311MPMW)

    Model # AXDA1800DLT3C

    Stepping Code : JIUHB:0311MPMW (guaranteed, or your money back)
    Default 1.5V
  • MJOMJO Denmark New
    edited November 2003
    keto: I guess there is more potential in my OC'ed 1800+.
    I am going to put on a SLK-900 soon.
    Hope to hit 2.2 or 2.3 Ghz.
    That shouldn't be unrealistic.
    It is a JIUHB DUT3C and I am at 1.7V now.
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited November 2003
    croc_, MJO:

    I've got a JIUHB DLT3C 1800+ in my NF7-S system; it has hit 2.51GHz @ 218x11.5 & 1.9v. I've bumped my "normal" speed from 2.3 to 2.4GHz @ 1.7-1.8v. It's dead stable @ that speed & voltage- in fact, if I recall correctly, when I first put the chip in, it did 2.3GHz @ 1.5v.

    The highest I've hit on a 2500 is 2.37GHz, but that was in an A7N8X-Deluxe rev. 1.4 @ ~210MHz FSB & 1.85v; I haven't tried the same chip in my NF7-S, as it's in my dual CPU system.
  • GHoosdumGHoosdum Icrontian
    edited November 2003
    Geeky, what kind of cooling do you have on the 1800+ when it's running at 2.4? How about the Barton?
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited November 2003
    The barton had a SLK-800 with a SmartFan2, and a helpful dose of extra cooling:
    <img src="http://www.short-media.com/forum/attachment.php?s=&postid=13826"&gt;
    <img src="http://www.short-media.com/forum/attachment.php?s=&postid=13827"&gt;

    Right now, the Barton is sharing a residence with another 2500+ of the same stepping. They're living (quite happily, I might add) in my MSI K7D Master-L, and run @ 1.88GHz (12.5x150). They both have SLK-800As with Tt SmartFan2s.

    The 1800 has a SLK-900A on it; up to 1.85v, I can run it with a YSTech 66CFM 92mm fan. Beyond that, I have to run it with a 92mm Tornado. Even then, it can't handle more than 1.9v; I've resorted to using a dryer duct to go from the tornado to my window, and with that setup, it's stable @ 2.51GHz. I haven't tried 2.5GHz+ without the duct tho...

    I don't think I'll be able to get much more out of this chip with air cooling. According to one of the CPU heat output calculators that are floating around, at 2.51GHz and 1.9v, the chip is pushing ~150w of heat; The SLK-900 is just about maxed out at that heat level, even with an intake air temperature of <60*F.
  • GHoosdumGHoosdum Icrontian
    edited November 2003
    Impressive!
  • MJOMJO Denmark New
    edited November 2003
    Hey that's cheating
    It isn't even in a case. ;)
    Tabletop OC isn't a valid method of OC'ing. :D
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited November 2003
    Bite me. :D

    It's still faster than yours, so... nyah! ;D;D
  • MJOMJO Denmark New
    edited November 2003
    Unfortunately you are right. :mad:
    But I have no man made hurricane next to me. ;D
    Better be careful or you will be sucked right into those fans.
    I am sure that won't be a pretty sight.
  • muddocktormuddocktor
    edited November 2003
    Another option for you to buy presently at least is the mobile 2400+, which is a barton core proc which comes with a 6 multi set on it. I got 1 about 2 weeks ago from newegg and it was a 0330 part and comes with a stock 1.575 vcore set. The reason for such a low multi is due to it being a mobile proc, but it booted up just fine in the KHA+ board I just dropped it in and no problems getting the multi up to 12.5, which is as high as that old mobo can adjust it in bios.

    I'm about to swap it into my NF7-S and wring it out to see what it tops out at.:D

    Last time I looked, they were selling for $85 at newegg.
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