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Modified 1.4 Durons being sold as 2600+ TBreds

By Didou
Nov 27, 2003
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  1. Taken from -> http://www.hardware.fr/news/lire/27-11-2003/#6194

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    As you can see from the ID Plate, the numbers/letters have been done by hand.

    Here are the modifications done to the chip.

    1. Two L2 bridges modified to change the 64K of L2 into 256k.
    2. Two L3 bridges modified to change multiplier from 10.5 to 12.5.
    3. One L11 bridge modified to change VCore from 1.5 to 1.6.
    4. One L12 bridge modified to change FSB from 133(266) to 166(333).

    In other words, keep away from bargains on 2600+ TBreds CPUs. Stick to Barton CPUs if possible. BTW, these rebadged CPUs have been spotted in Europe so far.
     
  2. somekid007

    somekid007 TS Rookie Posts: 369

    nvr realised how much trouble ppl go through to make a few extra bucks, sorry about you being gypped and thanks for the link, it helped me touch up on my french
     
  3. ---agissi---

    ---agissi--- TechSpot Paladin Posts: 2,384   +15

    Damn man.. so esentially is that Duron being OCed?
     
  4. Masque

    Masque TechSpot Chancellor Posts: 1,212

    Let the buyer beware.....especially on the 'net'. It won't be the first scam like this and it certainly won't be the last.
     
  5. Didou

    Didou Bowtie extraordinair! Topic Starter Posts: 5,899

    Yup, it's being overclocked, almost to its limits. These Durons are very popular as they can reach 2.3GHZ, run very cool & cost almost less then a large fry at McDonald's.;)
     
  6. ak_in_charge

    ak_in_charge TS Rookie Posts: 137

    Gotta give them a little credit. I love the Hand written ID plate.

    How classy is that. The things people will do for money.

    Very interesting thread. I enjoyed it! :grinthumb
     
  7. Rick

    Rick TechSpot Staff Posts: 6,304   +52 Staff Member

    Is it as good as good as a 2600+ Tbred?

    If it really has been modded with 256k cache and a 12.5 multiplier....
     
  8. ---agissi---

    ---agissi--- TechSpot Paladin Posts: 2,384   +15

    how can they mod it to have that extra cache?
     
  9. Mictlantecuhtli

    Mictlantecuhtli TS Evangelist Posts: 4,916   +9

    They have 256kB cache on die. It's just cheaper to disable it by cutting a couple of bridges than removing it completely.
     
  10. ---agissi---

    ---agissi--- TechSpot Paladin Posts: 2,384   +15

    So uh.. they take a duron and slap a die on there that contains 256kb worth of cache :confused:
     
  11. vassil3427

    vassil3427 TS Rookie Posts: 822

     
  12. NoisySilence

    NoisySilence TS Rookie Posts: 184

    It's a leftover stock of Tbreds CPUs with 3/4 of the cache disabled. A bit like CuMine Celerons which were CuMine P3s with half the cache disabled.
     
  13. somekid007

    somekid007 TS Rookie Posts: 369

    also kinda like celerons that are 400mhz pentium4 that have 3/4 cache cut
     
  14. Justin

    Justin TS Rookie Posts: 1,595

    It is common and makes economic sense. A lot of the chips that come out of fab may not function properly with 256kb cache because some of it is defective, but by disabling a lot of it they could get a chip that works just fine. That is why enabling the l2 cache not always works.

    It's the same way that you have different clock speeds with the same process... some are stable at, say, 2200mhz, but some might fail that speed, but at 2000mhz are just fine... so they are sold at 2000mhz instead, rather than being thrown out.
     
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