Hi everybody,
Thank you for your replies.
P.G.:
>if clock is wrong you cannot boot you machine, it does not starts due bad
>timig.
>if it start check hardware temperarure, overcloking == overheat. This can
>short your hardware life for real.
I think exactly the same you say.
Bill Marcum:
>Does the Inboard plug into the CPU socket or an expansion slot? If
>it's the latter, it _might_ work in any 286 system. If it uses the
>CPU socket, then it probably doubles the CPU clock speed, and
>wouldn't work if the original CPU was faster than 8 Mhz (maybe if the
>386 was socketed, and you could find a faster 386 chip?)
The Inboard plugs into a 16-bit ISA slot. A connector cable goes from the Inboard to
the 286 socket.
The idea of finding a faster 386 CPU might well work. It's only that my 286 is working
at 20 MHZ. I
should get a 40 MHz 386. But what about the other circuitry involved? Will they work
correctly or just
fry?
Jerry J. Haumberger:
>If you have a Compaq Portable II model #4 (which is what I have that
>has a hard drive), it has a CPU capable of switching between 6 and 8
>MHz with the CTRL+ALT+\ hot key combination. If you hear *one* beep
>when it boots up, it is running at 6 MHz; if *two* beeps, 8 MHz. This
>computer has the 286 CPU from Intel.
Well, maybe I haven't made myself clear. I just wanted to know the speeds of those
computers for they are
the ones mentioned in the Inboard manual regarding installation instructions. The PC I
want to install
the Inboard on is just a 20 MHz 286 clone. I wanted to know if those computers work
only at 8 MHz
(seemingly that mobo speed is the one the Inboard has been designed for).
>I don't have an IBM 3270 AT, but IBM PC/ATs have the following CPUs
>according to their BIOS dates:
>PC/AT 6 MHz BIOS Date 1/10/84
>PC/AT 6 MHz BIOS Date 6/10/85
>PC/AT 8 MHz BIOS Date 11/15/85 (this is what I have)
You know, the Inboard manual says that the crystal of the 6 MHz PC/AT should be
changed for the one
supplied with the Inboard. On the other hand, for the 8 Mhz version the manual says
nothing about
changing crystal. That's why I came to the conclusion that the Inboard is prepared to
synchronize with 8
Mhz driven signals. The 386 CPU on the Inboard works at 16 MHz. So, it looks like that
signals coming
from the mobo are multiplied by 2.
>There should be some freeware programs available at Simtel or elsewhere
>that will tell you the type and/or speed of your computers' CPUs.
As I said, my 286 works at 20 MHz.
Jorge
To unsubscribe from SURVPC send a message to [EMAIL PROTECTED] with
unsubscribe SURVPC in the body of the message.
Also, trim this footer from any quoted replies.
More info can be found at;
http://www.softcon.com/archives/SURVPC.html
