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- True or Forged?
-
- Test Your Pentium II Computer
-
- Since 1994, c't reports about counterfeit processors beeing sold in ever changing varieties.
- The current wave mainly consists of Pentium-II-233 or Pentium-II-266, sold with forged
- casing as 300-MHz-versions. In this case, there's the unique chance to expose the
- frauds through software.
-
- Andreas Stiller, editor at c't, developed a test program which makes you able to
- examine your computer by yourself. ctP2infw determines the internal configuration
- of the Pentium II and shows, whether error correction (ECC) exists and whether it's
- enabled. This way, overclocked and potentially forged Pentium-II-300 can be exposed.
-
- True 300-MHz-processors always have ECC, according to the Intel specification
- (Intel Pentium II Specification Update, Intel #243337), 266's and 233's do not. There
- are (seldom) cases where 266-MHz-processors are equipped with ECC. But they are much
- too expensive und therefore are not lucrative for the forgers. When the program detects
- a Pentium II without ECC, running at 300 MHz, it displays a warning message.
-
- If you detect a counterfeit processor, we ask you for
- information via http://www.heise.de/ct/ctp2poll/.
-
- Pentium-II-Deschutes-processors running at 333 MHz and more always work with ECC.
- Therefore, there's no possibility to distinguish a counterfeit 350-MHz-processor from a
- cheaper 333-MHz-version.
-
- In addition, ctP2infw for Windows95 determines the bus clock and the relation between
- the bus and processor clock. This way, you can check whether your Pentium II system
- is jumpered correctly. When it finds another processor than a Pentium II, the program
- aborts with an error message.
-
- Please direct questions and comments to: Andreas Stiller, as@ct.heise.de
-
- ----------------------
-
- Copyright 1998 c't magazine, Helstorfer Str. 7, 30625 Hannover, Germany,
- http://www.heise.de/ct
-
- Disclaimer: c't or Andreas Stiller are not responsible in any case for possible damages
- the software may cause. You are allowed to distribute the archive freely, as long as it
- remains intact with all original program files and with the documentation files included.
-