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: smooth2o who wrote (219628)	12/8/2006 3:07:56 PM
From: Petz	Read Replies (1) \| Respond to of 275872

re: Merom uses 1W Oh really? download.intel.com (Merom PDF dated August 06, Table 6, page 30) says Meroms use 17A in deep sleep (at LFM mode Vcc, 0.75-0.95 volts)==> 13-16 watts 12.1A in deeper sleep (at full Vid voltage, 1.04-1.3 volts) ==> 12.6 - 15.7 watts 9.9A in "enhanced deeper sleep" (at full Vid voltage) ==> 10.3 - 12.9 watts There's also a higher power sleep state that I didn't even bother to list. In ALL of the sleep states, the C2D is totally STOPPED, and it can't even respond to snoop requests. So either the cache has to be flushed first, or all I/O has to be suspended, on both CPUs. ---------------------------------------- OK, now in the "typical thermal power" section I see a claim that deep sleep operates with 4.5 to 7.6w, deeper sleep with 2 watts, and enhanced deeper sleep with 1.2 watts. So I presume that the highest current is only drawn occasionally to refresh registers and maybe L1.) But those are THERMAL power and don't include power dissipated external to the CPU chip, and I doubt "enhanced deeper sleep" can only be used when the user is staring at the screen. Typing in notepad probably kills enhanced deeper sleep or even background XP processes. Petz