Archived from groups: comp.sys.ibm.pc.hardware.chips (More info?)

At least 100 million AMD systems have been produced already (at least
those mated to VIA chipsets).

http://www.stockhouse.com/news/news.asp?newsid=2657664

Yousuf Khan

Archived from groups: comp.sys.ibm.pc.hardware.chips (More info?)

Tony Hill wrote:
> Also, my understanding of it is that the 100M VIA/AMD chipsets are
> strictly for Athlon (+ Duron, AthlonXP, Sempron) and Athlon64/Opteron
> processors. I'm guessing that the earlier chipsets for the K5 and K6
> chips would not have been counted as "AMD systems" since the chipsets
> could just as well have been used for Intel processors. The same is
> even more true for 486 and earlier processors.

That would be my guess as well, since it's hard to figure out whether
those 486 to Pentium-class chipsets were being mated to what. The
article did mention that VIA has had a cooperation with AMD since the
486 days.

I guess in the 486 days, AMD and Cyrix were the only ones that took the
486's FSB upto 40Mhz, since Intel stopped at 33Mhz. Only VIA was
producing 486 chipsets that went to those levels, so maybe they can
assume those went to non-Intel systems.

In the K6/Pentium/6x86 days, Socket 7 development was stopped at 66Mhz
by Intel, but I think AMD & Cyrix took it out to 100Mhz. Still no
guarantee it was specifically for AMD as it could've been for Cyrix as
well, it was just highly likely not for Intel.

Yousuf Khan

Archived from groups: comp.sys.ibm.pc.hardware.chips (More info?)

On Thu, 24 Feb 2005 23:41:18 -0500, Yousuf Khan <bbbl67@ezrs.com> wrote:

>George Macdonald wrote:
>> I don't recall seeing a VIA chipset back then for 486. Their earliest
>> chipsets, with their name on them that I recall, were the VP1 and VPX which
>> were for Pentium compatible CPUs. I had a VP2 (aka AMD-640) mbrd with a
>> Cyrix 6x86 which was a Pentium class system. More well known as 486
>> chipsets were OPTi and UMC, IIRC. Before the 6x86, my first major upgrade
>> was swapping out a POS Gigabyte "586" mbrd with i486/33 for a Shuttle mbrd
>> with a "UMC 8881F/8886AF and 8663AF" chipset and a Cyrix 5x86/120.
>
>Back in those days, I can recall the big chipset houses were ALI, SIS,
>and OPTI. UMC might have had a business in it too, but I didn't see too
>many of them. Similarly, I would gather VIA was also around, just not a
>big player yet.

Yeah I think UMC came in more towards the end of the 486 with the 486
enhanced mbrds with PCI; the Shuttle HOT-433, which used the UMC chipset,
actually worked quite well for me though I don't think it did any Bus
Mastering at all. Did Intel ever make a 486 PCI mbrd? ISTR no?? VIA
started in Silicon Valley, before moving to Taiwan, more as a design house
AFAIK - it wouldn't surprise me to learn that VIA designs were used in
particularly the UMC chipset... but possibly some of the others. They used
the same nomenclature as VIA ended up using: 82C5xx etc. etc.

>The really earliest chipset I can think of was from Chips &
>Technologies, they had a chipset business since the 286 days, I can
>recall. Then they just fell by the wayside, after creating the whole
>business.

The C&T was a PITA for many 3rd part cards - we were using Definicon 68020
add-in cards and they wouldn't work in C&T boards - something to do with D
flip-flops being used for latching the upper address lines, IIRC.

--
Rgds, George Macdonald