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View Full Version : *STRANGE* thing with Duron 750


Nixxon
04-17-01, 04:36 PM
Well today I switched my old Duron 700 for a brand new Duron 750 (major upgrade :) ). Nothing to write home about, but when I boot into Windows 98 (first edition) I notice something unbelievable: the new CPU seems to have some sort of cooling integrated. I mean, it looks like I have CPUIdle installed, but I've changed nothing but the CPU... As I write this the processor stays at about 33 degrees C (100MHz @ 1.91V) with a ****ty HSF I found in Romania, whereas the old CPU was about 44 - 45 degrees when idle (the same 1GHz @ 1.91V).
Now in more detail: with the old CPU, when I used CPUidle 5.8 there was a variation on +5V rail of the PSU e.g. 5.15V when idle, dropping to 4.88 at full load. Now with this new CPU I notice EXACTLY the same thing, only that I don't use CPUidle nor any other cooling program. What the hell is going on ? Did AMD include something weird in their processors or what ? Has anybody heard of something similar ?
PS: mobo is Abit KT7 (no RAID, no KT7A)

tim
04-17-01, 11:41 PM
Yes, I have the same experiencelike you. The newer batch CPU runs cooler than the older batch. About 5C to 8C cooler. It happened to me though :-) :-) :-)

tim
04-18-01, 12:07 AM
To be specific, I had 2 systems
1/ 650 duron, week 31 of 2000, 145x6=870mhz, idle 38-41C, under prime95 45-47C
2/ 800 duron, week 07 of 2001, 145x7=1015mhz, idle 28-31C, under prime95 37-40C
MY experience is that The heat is propotional to the extra mhz you got from OCing, 600mhz@1G will generate more heat than 800mhz@1.02G... correct me if I am wrong... thanks :-)