🚀 go-pugleaf

David. E. Goble <degoble@gtech.computing> wrote in
message news:3e1dc9f8.19444750@news.nella.net.au...

> Are 586/p1/p2 socket7 and socket3 cpus different?

Yes.

> Will putting an unkown cpu type into a p1/2 do any damage?

Can do.

"David. E. Goble" <degoble@gtech.computing> wrote in message
news:3e1dc9f8.19444750@news.nella.net.au...
> Hi all,
>
> Are 586/p1/p2 socket7 and socket3 cpus different?
>
> Will putting an unkown cpu type into a p1/2 do any damage?
"586" CPU's are actually based on the 486 architecture and plug into a 486
socket.
P1 CPU's came in two forms, the larger format used for 60 & 66MHz versions,
and then a smaller format used for 75MHz and above.  This is the same layout
that was also used for 686 cpus and AMD K5 and K6 cpus.
P2 CPU's used a slot rather than a ppga socket.
Socket types are as follows (I forget the actual number of pins)
socket 3 - used for 486 CPU's
socket 4 - P1 60&66MHz versions
socket 5 - P1 75-100MHz (120 & 133MHz will normally also work, although they
aren't supposed to)
socket 7 - was introduced for P1's faster than 100MHz, but is backward
compatible for 75, 90 & 100MHz cpu's. Also used for K5, K6, 686 & M1 CPU's
from AMD & Cyrix.  NB: not all socket 7's are created equal, just because it
is a socket 7, it may not have the correct voltages for your cpu.  Most
earlier boards lacked the super low voltages (<3V) required by the later AMD
& Cyrix cpu's, and a lot of later boards didn't support the 50 & 60 MHz bus
speeds required by the early P1's.
socket 8 - Pentium Pro
Slot 1 - P2, early celeron's, early P3's
Socket 370 - PPGA layout celerons <1.7GHz & P3's
Slot A - early AMD Athlon (NB, this is physically the same as Slot 1, but
electrically different, so plugging an athlon cpu into a P2 board or
vice-versa is BAD).
Socket A - AMD Duron and later AMD Athlon's - again not all Socket A boards
are equal, not all support the voltages and bus speeds required by all
chips.
Socket 423 - Early P4
Socket 478 - later P4 & celeron >=1.7MHz
You cannot put a CPU designed for one socket type into another socket - they
will not physically fit.  The only exception is Socket 7 & 5 which are
physically the same, and Slot 1 and Slot A which are physically the same.
Also be careful with Socket 3 (486), as they didn't have any form of index
pin, allowing the CPU to be fitted the wrong way around - this is BAD.
ensure you line up the index mark on the cpu with the index mark on the
board.

On Thu, 09 Jan 2003 21:57:59 GMT, "Justin Thyme" <bogan@toranas.com>
wrote:

[snip]

FYI:

OverDrive(R) Processor Sockets For Intel486(TM) Processor-based Systems


Sok	# of
et	Pins	Volts	CPU		OverDrive Processor*
-----------------------------------------------------------
 1 	169		5v 		486SX	BOXDX4ODP75   BOXDX4ODP100
					486DX	BOXDX4ODPR75  BOXDX4ODPR100  
 2	238 	5v 		486SX	BOXDX4ODP75   BOXDX4ODP100
					486DX	BOXDX4ODPR75  BOXDX4ODPR100
					486DX2	BOXPODP5V63   BOXPODP5V83 
 3	237		3/5v	486SX	BOXDX4ODP75   BOXDX4ODP100
					486DX	BOXDX4ODPR75  BOXDX4ODPR100
					486DX2	BOXPODP5V63   BOXPODP5V83
					486DX4	No upgrade available
 6	235		3v		486DX4	Future product 

>socket 3 - used for 486 CPU's
>socket 4 - P1 60&66MHz versions
>socket 5 - P1 75-100MHz (120 & 133MHz will normally also work, although they
>aren't supposed to)

Weren't expected too, I would have said. However, overdrives are
supported: 125, 150, 166 and 180 MHz.

I've also used the IDT/Centaur Winchip C6, in a socket-5. Still works,
too :)

>socket 7 - was introduced for P1's faster than 100MHz, but is backward
>compatible for 75, 90 & 100MHz cpu's. Also used for K5, K6, 686 & M1 CPU's
>from AMD & Cyrix.  NB: not all socket 7's are created equal, just because it
>is a socket 7, it may not have the correct voltages for your cpu.  Most
>earlier boards lacked the super low voltages (<3V) required by the later AMD
>& Cyrix cpu's, and a lot of later boards didn't support the 50 & 60 MHz bus
>speeds required by the early P1's.

Yes, there were at least two specs supported by Intel. I (and many
others) refered to them as: P54C and P55C. The P54C is single voltage,
and P55C spilt or dual voltage.

The later CPUs from the others also required a Super-Socket-7, which has
100MHz FSB, among other things.

[snip]


___________________________________________
Richard Rudek. MicroDek, Sydney, Australia.
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