For equivalent bus speeds and cpu clocks, which P3 package generates less heat: SECC2 or FC-PGA ?
I'm putting together a 133MHz-bus 1GHz P3 system and could go either way.
They are identical - crystal is open. But FC-PGA allows to install some ludicrous copper coolers.
I must be some kind of standard: the anonymous gangbanger of the 21st century.
Interesting. I was thinking perhaps the FCPGA would be mnore efficient, maybe not the cpu, but the cache.
wrote:Interesting. I was thinking perhaps the FCPGA would be mnore efficient, maybe not the cpu, but the cache.
1 GHz would be a Coppermine, thus with on-die cache, no matter slot or socket. It is basically the same chip, unless you are comparing a Coppermine with a Tualatin (which I'm not sure exists in 1G)
Please use the "quote" option if asking questions to what I write - it will really up the chances of me noticing 😀
Ah, right... mental error here...
thus with on-die cache
It does not matter. Katmai has open crystal as well.
I must be some kind of standard: the anonymous gangbanger of the 21st century.
You have one or the other to choose from... die exposed or one with IHS(integrated Heat Spreader).
Pentium3 1400s/ Asus Tusl2-c / Kingston 512mb pc133 cl2 / WD 20gb 7200rpm / GeForce3 Ti-500 64mb / Sound Blaster Live! 5.1 SB0100 / 16x dvdrom / 3.5 Floppy / Enermax 420w / Win98se
wrote:You have one or the other to choose from... die exposed or one with IHS(integrated Heat Spreader).
Thank you for the generous gift! Since i already have one with exposed die, I'll take the IHS ! 😀
wrote:wrote:You have one or the other to choose from... die exposed or one with IHS(integrated Heat Spreader).
Thank you for the generous gift! Since i already have one with exposed die, I'll take the IHS ! 😀
I think you misunderstood... i was just showing examples of the Pentium3 1ghz/133 cpus that were made that you could choose from, one with die exposed, the other with the IHS, i wasnt offering to send you one. Sorry
Pentium3 1400s/ Asus Tusl2-c / Kingston 512mb pc133 cl2 / WD 20gb 7200rpm / GeForce3 Ti-500 64mb / Sound Blaster Live! 5.1 SB0100 / 16x dvdrom / 3.5 Floppy / Enermax 420w / Win98se
I know, I was just yanking your chain... the smiley was your clue...
wrote:thus with on-die cache
It does not matter. Katmai has open crystal as well.
Yeah, but cache setup is way different, with external chips running at half core speed ..
Please use the "quote" option if asking questions to what I write - it will really up the chances of me noticing 😀
Coppermine P3 is full-speed cache, no?
wrote:Coppermine P3 is full-speed cache, no?
Yes, integrated in the cpu die .. Katmai is external, running at half speed ..
Please use the "quote" option if asking questions to what I write - it will really up the chances of me noticing 😀
Slot1 1GHZ(133) in my experience run cooler than equivalent socket370 chips and also under-volt much better. I found this true even comparing with s370 cD0 steppings. (the latest slot1 1ghz , SL4BS, is cc0 stepping).
Look on ebay for the SL4BS - and get a compaq/hp server version if you can. They come with a silver heatsink and no fan. Can be undervolted to 1.3v just by covering one pin (vid3 pin B119) and will then only use around 11 watts.
Does not even get warm to the touch after running prime95 in XP for 24 hours.
wrote:Slot1 1GHZ(133) in my experience run cooler than equivalent socket370 chips and also under-volt much better. I found this true even comparing with s370 cD0 steppings. (the latest slot1 1ghz , SL4BS, is cc0 stepping).
Look on ebay for the SL4BS - and get a compaq/hp server version if you can. They come with a silver heatsink and no fan.
Thanks, that's the one I have (two, actually). One has the large fanless heatsink you describe, which depended on being installed right in front of a case fan. The other has a "normal" size heatsink with two small fans on it. They were running way too fast, vibrating and noisy. So I lubed them with synthetic oil and added a 39 Ohm resistor in series with the 12V feed (for 7.5V) to slow them down. Now they're barely audible and still move plenty of air.
