From: Mitchell Yee (mitchell_yee_at_yahoo.com)
Date: Mon Oct 19 1998 - 16:38:55 EDT
The differences between the SL vs. DX 486 chip:
1. SL has a bigger internal cache 16K vs. 8K
for the DX
2. Although the math co-processor is still on
the basic 486 die, it's disabled for the SL.
3. My evil memory keeps telling me that the
voltage is slightly less for the SL vs.
the DX. I'm really not sure anymore.
4. Because the math co-processor is disabled,
the pin-outs are different, hence the non-PGA
form for the SL variant (I think it's a one
pin difference).
Remember, that IBM came up with the SL variant
of the 486 as a way to bring out a cheaper 486,
back in the days when 486 processors went
for up to $400 each. It sort of made sense
back then. Sort of.
Mitchell
---peter machule TRIUMF TISOL GROUP <machule_at_triumf.ca> wrote:
>
> Not even close....;-{
> It's not a standard 486 pinout and it's also not a PGA.
> One of the upgraders was/is working one a AMD 486-133 upgrade path.
> This would be an amazing piece of work .
> And NO longer cost justafiable at this point.
>
> .peter
>
> -----Original Message-----
> From: Bjorn Isheden <bjorn_at_dankadata.com>
> To: ThinkPad List <thinkpad_at_cs.utk.edu>
> Date: Monday, October 19, 1998 1:50 PM
> Subject: 486SL package ?
>
>
> >According to IBM is my TP750 equipped with a 486SL CPU.
> >Can someone tell me if the package of this CPU is the standard
486-PGA ?
> >
> >Thanks,
> >/Bjorn
> >
> >
>
>
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