Just wondering... How rare is the Pentium III 1000mhz 100mhz FSB, Slot 1 CPU?
The Pentium III 1000mhz 133mhz FSB slot 1 CPUs are fairly easy to find, but the 100mhz FSB variant seems very hard to come by.
Thanks.
I remember them being hard to find when they were current. I bought one new back in the day because I didn't want to replace my motherboard for one that support a 133Mhz FSB or socket 370. I seem to remember having a hard time finding one and paid a slight price premium over the 133. I also remember it didn't perform that well. Seemed the 100Mhz FSB was pretty limiting. All that to say, I'd imagine if they were uncommon when new, they will probably be somewhat hard to find today.
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I'd classify them as uncommon, but not rare. They pop up from time to time. I bought one last year for $30. I felt that was pretty reasonable since people on eBay like to ask $100+ for them.
Intel didn't make a ton of them, because by the time the 1 GHz Pentium III was affordable for the masses most OEM systems had transitioned to Socket 370 and 133 FSB. The high-end OEM space also included i820 systems, which would have used the 1000/133 Slot 1 chip. The 1000/100 Slot 1 was in some of the high end BX-based OEM systems in early 2000, and sold boxed for upgrades. The later and more common SL4KL S-spec was only sold as retail boxed.
I've seen these sell for extremely high prices... several hundred dollars new in box.
Not sure why exactly. AMD beat Intel to 1Ghz with the Athlon, so the historical significance of it is comparatively low. There are so many alternatives that will perform similarly if you just need a fast system from that era.
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I think it's because it's the fastest option without overclocking or using a slotket for a large number of BX boards. Plus it's uncommon. Supply and demand is a big part of it. If people wanted it for significance they'd want the 1000/133 version, since intel launched it first. The 1000/100 came later.
$10 slot1 adapter + $20 SL5QV says its worth around $30 if you dont count tax on stupid
Seemed the 100Mhz FSB was pretty limiting.
There's also bunch of problems if you try to throttle that CPU.
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By that time Intel were more focused on Socket 370 so 100Mhz FSB Slot 1 systems days were already numbered, no point making load of CPU's on a dead end system.
Someone was selling a few hundred on ebay a few years ago for a good price, wish I got one then, but didn't think I'd have a need for a 2nd one, and of course I do now!
Rare and very overpriced for what they are. One is on ebay now for over $200.
P III 1000mhz 133mhz slot 1 CPUs are a bit of a steal. Most BX motherboards will boot them at 750mhz, for strict Intel/HP/Compaq boards that don't boot them you can modify the CPU itself to force it to 100 or 66mhz FSB. They then boot at 750 or 500mhz.
The 1GH 133 FSB Slot 1 CPU's were made for slot1 server boards. Highest quality slot 1s. Out of 9 that I have all work at 1.3v (just cover pin B119). Only use 10.5 watts @750mhz for a very quiet, low powered passively cooled retro system. The heatsink doesn't even get warm to the touch after running prime95 in win98 for 24 hours.
Probably it depends where you live and where you search them, but anyway, they are not common. I have more than 500 slot 1 CPUs, none of them 1000/100.
PII - you'll find all of them without problems, 350 is probably most common, 300 (Klamath version) and 450 are a bit harder to find.
PIII - 450 and 500 are extremely common. 533, 550 and 600 (133 bus) are also common. 600 (100 bus) is a little harder to find.
Anything above can be hard to find, especially on 100 bus, but up to 800 MHz you can still find them.
