Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Technology Stocks : Advanced Micro Devices - Moderated (AMD) -- Ignore unavailable to you. Want to Upgrade?

To: Dan3 who wrote (85916)	7/28/2002 12:47:29 PM
From: Dan3	Read Replies (2) \| Respond to of 275872

Temp and voltage observations. Just for the halibut, I've lowered the voltage to 1.55 (from the 1.65 default) and stability (so far) of the 2200+ has been unaffected - this, I believe, bodes well for AMD's ability to ship faster Thoroughbreds. Idle temp is now 43 degrees, and running the COSBI benchmarks repeatedly only raises the temp to 45.5. (with the default voltage, I was able to raise the temp to 48C) If I allow a 10C margin for error, given that max temp is 85C for this chip, I have 27C thermal headroom for the chip - that's 53 degrees Fahrenheit. So, even at the standard voltage, this PC, with its quiet 3500RPM fan, should do just fine with a room temperature of 120 Degrees Fahrenheit! The specifications of the 2.4GHz Pentium 4 remain the same as its 0.13-micron predecessors; the only change is the new clock multiplier (24.0x). This means that the chip still operates at 1.5V, and now consumes 57.8 watts of power. In comparison, Intel’s 2.0GHz Willamette Pentium 4 processor generated 75.3 watts.... .....of course, with lower power consumption, the amount of heat generated by the Northwood Pentium 4 should be reduced. We say “should be” because we were surprised to find that our Northwood core got up to temperatures as high as 49 degrees Celsius when running under heavy load. sms.am P4 Northwood has a max temp of 68C to 71C (depending on model) and similar power consumption to Thoroughbred. If you allow the same 10C margin, then the max temp is 61C, meaning that you could be looking at problems with your PC if the room temperature hits 93 degrees Fahrenheit. I'm assuming a nominal room temp of 72F for baseline measurements (which is what I'm doing my own observations at).