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TBred B XP2100+ works GREAT on KT7 non-A without ANY mods!! Running at 2.3GHz now! Here

The 2.4c will be finding a home in my box soon because of it's amazing overclocking.

At this forum (click on Intel cpus) almost everyone has successfully overclocked theirs over 3Ghz on air, with most hitting 3.2 or 3.4 (and don't forget a 1 Ghz fsb).

A popular motherboard to go with it is Abit's IC-7 with the i875 chipset. The processor and motherboard are just $180 and $145 respectively over at Newegg, so don't waste your money on 3.0s.

OK, I now know several things for certain. I was wrong about your WinXP cpu model display. There is something I hadn't considered at play here and we were both describing our experiences with Athlon processors and different motherboards.

Long story trimmed down to reasonable size can be found here. The extended name string in the Athlon processor is programmable by the bios via password protected MSRs ( Machine Status Registers). The bios writers get access to protected things AMD & Intel don't want us regular folks messing with.

I wrote a small asm program to dump the extended name via the cpuid instruction. My Abit boards and my Dad's Shuttle boards behave very differently. On my Abit boards, the only time the extended name matches the sold-as-speed model number is when it is set as a 1700+ in the bios. The motherboard knows the cpu is a 1700+ because of the default multiplier bridges and the fsb sense pins. If the cpu is set as user defined at 11x133=1467, the default for a 1700+, the extended name is just "AMD Athlon(tm)". On the Shuttle boards, they try to match the speed to the model numbers the bios recognises, regardless of multiplier and bus speeds.

Check out the first screenshot , scroll down one message. The cpu is an actual 2100+, reported as a 2700+ with the extended name and running at 2.595GHz, much faster than the 2.17GHz a 2700+ actually runs. It just happens that a 2700+ is the fastest cpu his board recognises by model number.

Look at the shots here and notice that none of the Athlon names include a model number. Their bioses didn't set an extended name so it is still defined as AMD set it. Athlons don't have the model number embedded in the cpu except as read via the multiplier/fsb bridges and the bios sets the extended name to include the model number, not AMD. If you want a copy of my 193 byte util, just email me. Also, this was my next brilliant theory. 8^}

It just happens that all of the boards I routinely use to build systems do not try to always match cpu speed to model numbers. At least I learned something today.

OK, I now know several things for certain. I was wrong about your WinXP cpu model display. There is something I hadn't considered at play here and we were both describing our experiences with Athlon processors and different motherboards.

Long story trimmed down to reasonable size can be found here. The extended name string in the Athlon processor is programmable by the bios via password protected MSRs ( Machine Status Registers). The bios writers get access to protected things AMD & Intel don't want us regular folks messing with.

I wrote a small asm program to dump the extended name via the cpuid instruction. My Abit boards and my Dad's Shuttle boards behave very differently. On my Abit boards, the only time the extended name matches the sold-as-speed model number is when it is set as a 1700+ in the bios. The motherboard knows the cpu is a 1700+ because of the default multiplier bridges and the fsb sense pins. If the cpu is set as user defined at 11x133=1467, the default for a 1700+, the extended name is just "AMD Athlon(tm)". On the Shuttle boards, they try to match the speed to the model numbers the bios recognises, regardless of multiplier and bus speeds.

Check out the first screenshot , scroll down one message. The cpu is an actual 2100+, reported as a 2700+ with the extended name and running at 2.595GHz, much faster than the 2.17GHz a 2700+ actually runs. It just happens that a 2700+ is the fastest cpu his board recognises by model number.

Look at the shots here and notice that none of the Athlon names include a model number. Their bioses didn't set an extended name so it is still defined as AMD set it. Athlons don't have the model number embedded in the cpu except as read via the multiplier/fsb bridges and the bios sets the extended name to include the model number, not AMD. If you want a copy of my 193 byte util, just email me. Also, this was my next brilliant theory. 8^}

It just happens that all of the boards I routinely use to build systems do not try to always match cpu speed to model numbers. At least I learned something today.

You could try this page, and if they move it the steps are:

- amd.com
- Technical Resources link at top
- Technical Documentation at top left
- AMD Athlon(tm) XP Tech Docs

System makers can brand executables, but it is more common for them to use oeminfo.ini. If the General tab under system properties doesn't have a "Computer:" heading and does have a "Manufactured and Supported by:" heading, manufacturers logo or Support Information button, then your system has been branded by the OEM. If you have an oem system then it is about 99% certain that when it was branded, the cpu model ( 1700+ ) was created during.

So, which company made your computer system? I don't have to ask if you built it yourself. We wouldn't be having this discussion if you had.

Some well respected software that won't/can't tell you your sold-as-speed, Sandra 2003, wcpuid, CPU-Z and the Linux kernel.

I have built thousands of systems from scratch and generally know what I am speaking about, but have been wrong before and will be wrong again. I have kept a civil tongue while you made snide remarks like "What's your next brilliant theory?". I have provided detailed information, you quoted WinXP as an unquestionable resource. Check the Forums at overclockers.com, one of the many places on the web to get good info and meet strange new people. BTW, with watercooling, my AthlonXP 1700+ DLT3C (1.5v) chip will run 2.55GHz and pass the prime95 torture test.

Have a great Palm Sunday.

Somebody on the overclockers' forum got his 1.8 Ghz P4 C1 stepping (from a Dell computer) to 3.5 Ghz. While it doesn't have hyperthreading (which doesn't neccessarily give you performance benefits), it does have a much faster bus rate.

not only that, but people have been hitting 3.1Ghz on air cooling using the cheaper 2.4b chips. Link