re: AMD

Brett Hollon (bhollon@mhaao.inhouse.compuserve.com)
Sat, 21 Dec 1996 12:19:13 -0500

I've been using an AMD AM5x86-P75 for quite some time now with no
difficulties. It isn't actually a pentium-class chip. It's a 4x
internal clock 486 with a bigger (16k) on-chip cache and support for
write-back caching.

It's designed to run at 33MHz external (133MHz internal). I've been
overclocking mine to 40MHz external (160MHz internal) with no problems.
In order to keep heat problems away I have a heat sink and fan attached
(which AMD recommends), and heat sink compound in between.

AMD claims that you get comperable performance to a Pentium-75 at the
recommended clock speed. As I don't have a P75 to compare to, I can't
comment on that. I do know that it is snappy quick compared to the
i486DX33 I was using before.

I am running linux-2.0.27 which detects the chip correctly as:
processor : 0
cpu : 486
model : Am5x86-WB
vendor_id : AuthenticAMD
stepping : 4
fdiv_bug : no
hlt_bug : no
fpu : yes
fpu_exception : yes
cpuid : yes
wp : yes
flags : fpu
bogomips : 79.87

Hope that helps,
Brett

----original message from s253343@jupiter.cc.gettysburg.edu follows----

Does anyone know much about AMD chips?... I am looking arround and found a
decent deal on a AMD AM5x86-P75...

Are there any major differences between this and a noormal pentium... will
linux like it? more? less? different?

Thanks!

-Chuck

s253343@gettysburg.edu
(717)-337-8212

"God is real, unless declared integer."