Polgar 10mhz?...or not?

[Larry]

http://www.ebay.de/itm/Mephisto-Schachc ... 337e332bf9
If they are 10mhz then why does'nt it say "10mhz on the front of
the program module, like this one?...
http://www.schach-computer.info/wiki/im ... lgar-2.jpg

Or are they some sort of factory upgrade?
anyone shed light on this?
Larry

[IvenGO]

Maybe its custom-tuned?

[Steve B]

Or are they some sort of factory upgrade?

Maybe its custom-tuned?

i have never heard of Mephisto offering factory upgrades to the normal 5 Mhz Polgar and even if they did they would not leave the program module labeling unchanged like that

the display is showing the normal Polgar 10 Mhz start-up screen
If it were a custom tuned(modified) 5 Mhz to 10 Mhz then someone would have had to also modify the eprom to display "10,0" on the start-up screen..the 5 Mhz Polgar of course does not display that
i guess its possible though
you sometimes see this kind of home modification with the normal 5 Mhz MMV module being over clocked to 10 Mhz and offered for sale on Ebay

another possibility is that someone simply copied a 10 Mhz eprom from a Polgar 10 and snapped it into the normal Polgar 5 module..
of course that means its not running at the faster clock speed


Rather Odd Regards
Steve

[Peter Grayson]

http://www.ebay.de/itm/Mephisto-Schachc ... 337e332bf9
If they are 10mhz then why does'nt it say "10mhz on the front of
the program module, like this one?...
http://www.schach-computer.info/wiki/im ... lgar-2.jpg

Or are they some sort of factory upgrade?
anyone shed light on this?
Larry

I thought I recalled Mephisto releasing a speed doubled Polgar. Some mention of it here ...

http://www.stmintz.com/ccc/index.php?id=461359

Edit: It is also recorded in Eric Hallsworth's Selective Search dedicated chess computer rating list as 5 MHz= 1963 Elo and 10 MHz as 2034 so quite a significant performance increase!

Regards,
PeterG

[Steve B]

http://www.ebay.de/itm/Mephisto-Schachc ... 337e332bf9
If they are 10mhz then why does'nt it say "10mhz on the front of
the program module, like this one?...
http://www.schach-computer.info/wiki/im ... lgar-2.jpg

Or are they some sort of factory upgrade?
anyone shed light on this?
Larry

I thought I recalled Mephisto releasing a speed doubled Polgar. Some mention of it here ...

http://www.stmintz.com/ccc/index.php?id=461359

Edit: It is also recorded in Eric Hallsworth's Selective Search dedicated chess computer rating list as 5 MHz= 1963 Elo and 10 MHz as 2034 so quite a significant performance increase!

Regards,
PeterG

The Point of the discussion Peter is that the Polgar 10 sold by Mephisto ...is clearly marked "10 Mhz" on the module casing
this module being offered does not have that marking
it is labeled like a normal Polgar 5

Speed Reading Regards
Steve

[Peter Grayson]

The Point of the discussion ...
Speed Reading Regards
Steve

Alas sometimes the brain registers what it wants to see not what was written!

Late night reading, sleepy eyed regards,
Peter

[Steve B]

The Point of the discussion ...
Speed Reading Regards
Steve

Alas sometimes the brain registers what it wants to see not what was written!

Late night reading, sleepy eyed regards,
Peter

Your lucky that it only happens to you only late at night
these days i find it happening to me all the time
sigh..

Senior Moments Regards
Steve

[IvenGO]

Of course Im not an expert but true 10Mhz Polgar modul requires modified board and I saw only several Modular but never Exclusive made so. This way it looks like just EPROM has been changed... fake...