Switches at Simmsaver/32 ???

  • Thread starter Thread starter Markus Lesch
  • Start date Start date
M

Markus Lesch

Hello,

I own two old Ram-Cards called "Simmsaver/32". The card combines two
EDO-Ram-modules to one. At the cards are 4 DIP-switches to set the correct
speed of the modules (60,70,80ns). But I don't know the settings for these
switches. Any hints?

Markus

(please excuse my bad english)
 
Markus said:
Hello,

I own two old Ram-Cards called "Simmsaver/32". The card combines two
EDO-Ram-modules to one. At the cards are 4 DIP-switches to set the
correct speed of the modules (60,70,80ns). But I don't know the
settings for these switches. Any hints?

Markus

(please excuse my bad english)
Click to expand...

Markus, if you look on the chips themselves on the modules there may
(should) be a number that tells you how fast the RAM is (in nano-seconds,
ns). There will be a long number ending with -60 or -70, something like
that. That number is the RAM speed in ns, use matched pairs in each
'Simmsaver' and set the switch to whatever it says on the chips.

What you have there are quite rare and weren't used extensively. I think
they were mainly used in 486's that were fitted with 72-pin RAM slots, I'm
not sure that they'll work with Pentium-class machines. 486's could have one
72-pin module at a time, Pentium machines needed matched pairs and those
'Simmsavers' may not work.
 
~misfit~ said:
Markus, if you look on the chips themselves on the modules there may
(should) be a number that tells you how fast the RAM is (in nano-seconds,
ns). There will be a long number ending with -60 or -70, something like
that. That number is the RAM speed in ns, use matched pairs in each
'Simmsaver' and set the switch to whatever it says on the chips.
Click to expand...

OK, but I don't know how to set the switches for 60,70 or 80ns Rams.
What you have there are quite rare and weren't used extensively. I think
they were mainly used in 486's that were fitted with 72-pin RAM slots, I'm
not sure that they'll work with Pentium-class machines. 486's could have one
72-pin module at a time, Pentium machines needed matched pairs and those
'Simmsavers' may not work.
Click to expand...

I own two laserprinters. Each laserprinter has only one ram-slot. I want to
expand these slots with the Simmsaver-modules.
 
Markus said:
OK, but I don't know how to set the switches for 60,70 or 80ns Rams.
Click to expand...

That could be a problem. I found this page Googling:

http://pauillac.inria.fr/~lang/hotlist/hardware/simmsaver/gamerguy-faq

It was 1995, going back a bit now, but there is an email address for a guy
that may or may not prove useful.
I own two laserprinters. Each laserprinter has only one ram-slot. I
want to expand these slots with the Simmsaver-modules.
Click to expand...

Ok, I understand. I would say that should be fine.

You can always just guess the dipswitches. I don't think you'll hurt the RAM
although I could be wrong.

Good luck.
 
Markus Lesch said:
Hello,

I own two old Ram-Cards called "Simmsaver/32". The card combines two
EDO-Ram-modules to one. At the cards are 4 DIP-switches to set the correct
speed of the modules (60,70,80ns). But I don't know the settings for these
switches. Any hints?

Markus

(please excuse my bad english)
Click to expand...

Your four switched give you 16 options which is a lot more the the
three options you have, do they do something else apart from speed?
Parity?
 
kony said:
Are you certain that the printer will accept that much memory?
Click to expand...

Apparently, from what I read during my search, these modules are supposed to
be 'transparent' to a mobo. I can't see why it would be different for a
printer?
If all else fails you might try the settings for the simmsaver/8,
http://www.computerjunk.com/catalog/items/item372.htm
Click to expand...

From that document:

Speed Sw3 Sw4
60ns off off
70ns on off
80ns off on
Slower than 80ns off on

And for total RAM size: (These may be different, or not)

Size Sw1 Sw2
1MB on off
4MB on on
16MB on off
32MB off on
64MB off off.

HTH.
 
Apparently, from what I read during my search, these modules are supposed to
be 'transparent' to a mobo. I can't see why it would be different for a
printer?
Click to expand...

Yeah, but what I mean is, suppose he has 4 x 32MB SIMMs, but the printer
itself can only use up to 32 or 64MB max? I have an old Lexmark/IBM
Laserjet around here somewhere that has 2 or 3 SIMM slots and can't use
more than 32 or 64MB... think it's 32MB.
 
kony said:
Yeah, but what I mean is, suppose he has 4 x 32MB SIMMs, but the printer
itself can only use up to 32 or 64MB max? I have an old Lexmark/IBM
Laserjet around here somewhere that has 2 or 3 SIMM slots and can't use
more than 32 or 64MB... think it's 32MB.
Click to expand...

I have four 16MB-Rams and each simmsaver has two slots (see picture), each
printer accepts 32MB maximum of memory, so 2x16MB for one printer with one
simmsaver-card.

M.
 
[...]
From that document:

Speed Sw3 Sw4
60ns off off
70ns on off
80ns off on
Slower than 80ns off on

And for total RAM size: (These may be different, or not)

Size Sw1 Sw2
1MB on off
4MB on on
16MB on off
32MB off on
64MB off off.
Click to expand...

OK, I try it.

M.
 
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