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Neon
Joined: 04 Feb 2008
Posts: 1512
Location: Dallas, Texas, USA
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 Posted: Thu Jun 10, 2010 11:42 am Post subject: Who am I? A strange K6 |
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This looks like a standard AMD K6-300AFR with ink printing. Except for two things:
1. copyright 1998. All of the K6 that I have seen are copyright 1997. Have you seen any 1998?
2. package #26050, which is usually only seen with early K6-2.
The processor does not boot at 300 MHz, but with a lower clock multiplier, it boots at 266 MHz.
Surprise! It identifies as K6-2. All of the following are consistent with K6-2 and not K6:
1. CPUID=580
2. supports 3DNow! instruction set
3. supports SYSCALL/SYSRET instructions
I doubt that it is a fake - why mark a K6-2 as a K6? How did this happen? |
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DamnBeavis.
Joined: 31 Dec 2009
Posts: 171
Location: Moscow, Russia.
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| Posted: Thu Jun 10, 2010 11:51 am Post subject: |
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Stupid fakers?! 
_________________
S.M.A.R.T. -- Self-Monitoring, Analysis and Reporting Technology
I.D.I.O.T. -- Identify Drive, Interconnect with Output Technology |
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hugo929
Joined: 27 Oct 2006
Posts: 6163
Location: China
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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| Posted: Thu Jun 10, 2010 6:49 pm Post subject: |
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what speed is engraved in the top right corner on the ceramic?
_________________
There are 10 types of people in this world:
those who understand binary and those who don't. ~Author Unknown
http://www.x86-guide.net/Neon-WA/en/collection.html |
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Neon
Joined: 04 Feb 2008
Posts: 1512
Location: Dallas, Texas, USA
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| Posted: Thu Jun 10, 2010 7:14 pm Post subject: |
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| DamnBeavis. wrote: | | Stupid fakers?! |
I did not consider stupidity, but that may be correct
| hugo929 wrote: | low MHz k6-2 -> high MHz k6 ？
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maybe there was a time when low MHz K6-2 cost less than the fastest K6. That seems possible.
| Neon_WA wrote: | | what speed is engraved in the top right corner on the ceramic? |
No engraving. They were not always engraved, though.  |
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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| Posted: Thu Jun 10, 2010 7:31 pm Post subject: |
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I have to check, but don't most K6/300s have an I/O voltage of 3.45 
EDIT >> had a look around.. can find both 3.3 & 3.45V on K6/300AFR
_________________
There are 10 types of people in this world:
those who understand binary and those who don't. ~Author Unknown
http://www.x86-guide.net/Neon-WA/en/collection.html |
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Neon
Joined: 04 Feb 2008
Posts: 1512
Location: Dallas, Texas, USA
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| Posted: Mon Jun 03, 2013 7:09 pm Post subject: |
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I recently received another of these processors from CPU Shack, and discovered that it functions normally at 3x 100 MHz, just like a K6-2/300. There is also another one in this online collection:
http://www.oldcpu.cz/CPU/AMD/K6/amd-k6-300-afr-black/129
So I went searching for more information, and then wrote an article to explain my findings. Let me know if it makes sense, if you agree/disagree, if I have defiled the English language, and so on.
http://closo.net/sale/AMD-K6-300-article.html |
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Neon
Joined: 04 Feb 2008
Posts: 1512
Location: Dallas, Texas, USA
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| Posted: Sat Jun 15, 2013 7:21 pm Post subject: |
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| My hypothesis is that this type of K6 is not fake. It is a K6-2 that has been remarked to a K6, probably to meet market demand for 66 MHz bus processors. |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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gshv
Joined: 01 Feb 2003
Posts: 7898
Location: Fairfax, VA USA
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| Posted: Wed Jul 24, 2013 2:03 pm Post subject: |
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| Neon wrote: | | My hypothesis is that this type of K6 is not fake. It is a K6-2 that has been remarked to a K6, probably to meet market demand for 66 MHz bus processors. |
It should be possible to decode the datamatrix code, and see if the decoded text matches the part number. If you have a high resolution picture I could try to do that.
Gennadiy |
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Neon
Joined: 04 Feb 2008
Posts: 1512
Location: Dallas, Texas, USA
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| Posted: Wed Jul 24, 2013 3:51 pm Post subject: |
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I had forgotten about the datamatrix codes. How do they work if there is no serial number? Here are the 2 datamatrices from 2 different specimens:
Last edited by Neon on Wed Jul 24, 2013 7:54 pm; edited 2 times in total |
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gshv
Joined: 01 Feb 2003
Posts: 7898
Location: Fairfax, VA USA
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| Posted: Wed Jul 24, 2013 4:07 pm Post subject: |
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Steve, they seem to be enlarged, so I doubt that a datamatrix reading program, that I have, will properly decode it. I was hoping for higher resolution picture.
Gennadiy |
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Neon
Joined: 04 Feb 2008
Posts: 1512
Location: Dallas, Texas, USA
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| Posted: Wed Jul 24, 2013 7:35 pm Post subject: |
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Gennadiy,
I tried again, and uploaded them above. Let me know if they are useable. |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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Neon
Joined: 04 Feb 2008
Posts: 1512
Location: Dallas, Texas, USA
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| Posted: Wed Jul 24, 2013 7:55 pm Post subject: |
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| OK, now at 1200 dpi |
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