- Sep 18, 2000
- 14,038
- 1
- 81
I'm doing some of you guys a favor and hopefully that this thread would be useful.
First off, there are two kinds of Tbred. The Tbred A and the much anticipated Tbred B. The Tbred B lived up to the hype it received when AMD found out about the limitations of Tbred A. So, how do I know it's a Tbred B?? Simple, look at the core and you'll spot a line of marking that resembles these few alphabets. JIUCB would means that you have got a Tbred A and JIUHB would means that you have a Tbred B.
So now you've found out what your core you have. Which CPU is the best?? Through all the readings that I've gathered (I don't really have real experience with them. Can't afford it), people have been getting very good results with the Xp1700 and Xp2100. The CPUs are priced at an affordable range and the gains from the CPU are huge. Xp1700 will overclock to 2Ghz and beyond depending on the stepping while the Xp2100 will get 2.3-2.5Ghz. Where do you get them?? A few places; newegg, ExcaliberPC, Googlegear and others not mentioned.
Next, which stepping you ask?? For the Xp1700, many have gotten good results with the JIUHB stepping while AIUHB stepping is the one you should look for when you're getting a Xp2100. There are other steppings out there but these two have given the best oc so far. Dates of when each core is fabricated is also important. Each week represent a different yield and your oc might vary. Again, the best that I have read so far is the 0302 which is the week 2 of 2003. They tend to overclock to the same speed as others BUT with lower vcore. All these information can be obtained on the black piece of markings on the chip.
Pali vs Tbred?? All answers can be found here thanks to anand.
Safe Vcore to overclock to?? There are many answers to this. Your cooling must be sufficient to cool the CPU that you're going to overlclock. The surface area of the Tbred is rather small. Thus, having a small contact area with the HSF unit. The heat can only dissipate that much through the minimal contact of the core. The default voltage for Tbred B is 1.6v while the default for the Tbred A is 1.5v. I am pretty sure that you guys have read that people on this board is doing 2v and above. Some of them are on water cooling and some aren't. A few of them have burnt their CPU by putting too much juice into it. I can't remember who are they but I'm sure they will come into this thread and tell us about their experience.
All in all, I would personally not go over 1.85v.
So now you have almost ALL the information you need. "Which mobo would I choose" you say?? The performance king today is the Nforce2 without a doubt. Therefore, there are various boards to turn to. There's the A7N8X by Asus, Epox's 8RDA, Abit's NF7-S and others. Alot have opted for the Asus and Epox with both hitting 200Mhz FSB synchronous with the memory speed. Do they unlock the Tbred?? Yes and no, it really depends on the BIOS and NOT THE CHIP. The L1 bridges on ALL the Tbred CPUs are not cut and it allows for multiplier adjustment. That incldues the Tbred B and A. So, if you really want to know what version is the best for tyour mobo, please go to the mobo section where Evan has made a sticky for each and every board of your choice.
As for overclocking. I would be waiting for Mr champion to pimp his guide here. Mr Shim, Chizow, bgeh, jen, Mr champion,THUGSROOK, Duvie and others whom I have failed to mention are great helpers in this side of the forums. I'm sure they can contribute to this thread. Please point out to any mistakes that I've done. I don't own a Tbred but a Pali. I've got the liberty to play with a Xp2100 once and it's hella sweet.
Why is my Xp CPU running slower than what I intend it to?? Check the bus speed that your CPU is suppose to run. Tbreds are on 266 bus while the barton is on both 266 and 333 bus. If you're running at a lower speed than what you want it to, check the bios to see if you're running the right bus speed.
Last but not least. The Tbred runs cooler than the Pali. Alot of guys in this forums are using the Thermalright SLK 800 and getting good results with it. Be warned though, the SLK900 would not fit on the A7N8X without you bending some capacitors and the fins on the heatsink of the chipset.
****************************************
Unofficial Xp2100 Tbred B oc thread. Lots of Info.
Unofficial Xp1700 Tbred B oc thread.
Official Tbred overclock thread. Lots of info on steppings and dates.
FAQs, Monitoring Programs, Benchmarks, Bios/Drivers, & Other Apps for ALL
Official Corsair OC thread.
****************************************
First off, there are two kinds of Tbred. The Tbred A and the much anticipated Tbred B. The Tbred B lived up to the hype it received when AMD found out about the limitations of Tbred A. So, how do I know it's a Tbred B?? Simple, look at the core and you'll spot a line of marking that resembles these few alphabets. JIUCB would means that you have got a Tbred A and JIUHB would means that you have a Tbred B.
So now you've found out what your core you have. Which CPU is the best?? Through all the readings that I've gathered (I don't really have real experience with them. Can't afford it), people have been getting very good results with the Xp1700 and Xp2100. The CPUs are priced at an affordable range and the gains from the CPU are huge. Xp1700 will overclock to 2Ghz and beyond depending on the stepping while the Xp2100 will get 2.3-2.5Ghz. Where do you get them?? A few places; newegg, ExcaliberPC, Googlegear and others not mentioned.
Next, which stepping you ask?? For the Xp1700, many have gotten good results with the JIUHB stepping while AIUHB stepping is the one you should look for when you're getting a Xp2100. There are other steppings out there but these two have given the best oc so far. Dates of when each core is fabricated is also important. Each week represent a different yield and your oc might vary. Again, the best that I have read so far is the 0302 which is the week 2 of 2003. They tend to overclock to the same speed as others BUT with lower vcore. All these information can be obtained on the black piece of markings on the chip.
Pali vs Tbred?? All answers can be found here thanks to anand.
Safe Vcore to overclock to?? There are many answers to this. Your cooling must be sufficient to cool the CPU that you're going to overlclock. The surface area of the Tbred is rather small. Thus, having a small contact area with the HSF unit. The heat can only dissipate that much through the minimal contact of the core. The default voltage for Tbred B is 1.6v while the default for the Tbred A is 1.5v. I am pretty sure that you guys have read that people on this board is doing 2v and above. Some of them are on water cooling and some aren't. A few of them have burnt their CPU by putting too much juice into it. I can't remember who are they but I'm sure they will come into this thread and tell us about their experience.
All in all, I would personally not go over 1.85v.So now you have almost ALL the information you need. "Which mobo would I choose" you say?? The performance king today is the Nforce2 without a doubt. Therefore, there are various boards to turn to. There's the A7N8X by Asus, Epox's 8RDA, Abit's NF7-S and others. Alot have opted for the Asus and Epox with both hitting 200Mhz FSB synchronous with the memory speed. Do they unlock the Tbred?? Yes and no, it really depends on the BIOS and NOT THE CHIP. The L1 bridges on ALL the Tbred CPUs are not cut and it allows for multiplier adjustment. That incldues the Tbred B and A. So, if you really want to know what version is the best for tyour mobo, please go to the mobo section where Evan has made a sticky for each and every board of your choice.
As for overclocking. I would be waiting for Mr champion to pimp his guide here. Mr Shim, Chizow, bgeh, jen, Mr champion,THUGSROOK, Duvie and others whom I have failed to mention are great helpers in this side of the forums. I'm sure they can contribute to this thread. Please point out to any mistakes that I've done. I don't own a Tbred but a Pali. I've got the liberty to play with a Xp2100 once and it's hella sweet.
Why is my Xp CPU running slower than what I intend it to?? Check the bus speed that your CPU is suppose to run. Tbreds are on 266 bus while the barton is on both 266 and 333 bus. If you're running at a lower speed than what you want it to, check the bios to see if you're running the right bus speed.
Last but not least. The Tbred runs cooler than the Pali. Alot of guys in this forums are using the Thermalright SLK 800 and getting good results with it. Be warned though, the SLK900 would not fit on the A7N8X without you bending some capacitors and the fins on the heatsink of the chipset.
****************************************
Unofficial Xp2100 Tbred B oc thread. Lots of Info.
Unofficial Xp1700 Tbred B oc thread.
Official Tbred overclock thread. Lots of info on steppings and dates.
FAQs, Monitoring Programs, Benchmarks, Bios/Drivers, & Other Apps for ALL
Official Corsair OC thread.
****************************************
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