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To: Ali Chen who wrote (21386)	12/3/2000 2:11:48 AM
From: Petz	Read Replies (1) \| Respond to of 275872

Ali, new funny-business going on with the P3-1GHz. In order to get 1 GHz yields up, Intel has developed a new method. See footnote #20 in the P3 spec sheet: 20.This specification only applies to 1B GHz S-spec #: SL4WM. This part has a VID request of 1.70V, however the processor should be supplied 1.76V at the PGA Vcc pin by the Voltage Regulator Circuit or VRM. In other words, Intel found that if they tweaked the Vcc up to exactly 1.76 volts, a few more P3's are capable of running at 1 GHz. I guess raising it 0.04 volts higher, to the next normal voltage regulator number, 1.8 volts, would make it *burn up!* So now the new cheaper P3 1 GHz also requires a special motherboard that reinterprets the call for 1.7 volts from the Vr pins to actually be a request for 1.76 volts. This new version of P3 1 GHz has to dissipate an extra 3 watts more than the older version (now 43.9 watts) but still has to keep Tj at 70 degC or lower. I wonder which OEM's signed up for these new, lower quality P3's. Petz