The Design and Implementation of laffer1

This program identifies your CPU and tells you a great deal about your system.

http://www.cpuid.com/cpuz.php

CPU-Z Report

CPU-Z version 1.35.

CPU(s)   Number of CPUs 2

CPU#1 APIC ID = 0 Name Intel Xeon Code Name Prestonia Specification Intel(R) Xeon(TM) CPU 2.00GHz Family / Model / Stepping F 2 7 Extended Family / Model F 2 Brand ID 11 Package mPGA-604 Core Stepping C1 Technology 0.13 um Supported Instructions Sets MMX, SSE, SSE2 CPU Clock Speed 1993.6 MHz Clock multiplier x 15.0 Front Side Bus Frequency 132.9 MHz Bus Speed 531.6 MHz L1 Data Cache 8 KBytes, 4-way set associative, 64 Bytes line size L1 Trace Cache 12 Kuops, 8-way set associative L2 Cache 512 KBytes, 8-way set associative, 64 Bytes line size L2 Speed 1993.6 MHz (Full) L2 Location On Chip L2 Data Prefetch Logic yes L2 Bus Width 256 bits

CPU#2 APIC ID = 6 Name Intel Xeon Code Name Prestonia Specification Intel(R) Xeon(TM) CPU 2.00GHz Family / Model / Stepping F 2 7 Extended Family / Model F 2 Brand ID 11 Package mPGA-604 Core Stepping C1 Technology 0.13 um Supported Instructions Sets MMX, SSE, SSE2 CPU Clock Speed 1993.6 MHz Clock multiplier x 15.0 Front Side Bus Frequency 132.9 MHz Bus Speed 531.6 MHz L1 Data Cache 8 KBytes, 4-way set associative, 64 Bytes line size L1 Trace Cache 12 Kuops, 8-way set associative L2 Cache 512 KBytes, 8-way set associative, 64 Bytes line size L2 Speed 1993.6 MHz (Full) L2 Location On Chip L2 Data Prefetch Logic yes L2 Bus Width 256 bits

Mainboard and chipset   Motherboard manufacturer Dell Computer Corp. Motherboard model 0F1262, BIOS vendor Dell Computer Corporation BIOS revision A04 BIOS release date 03/25/2004 Chipset Intel E7505 rev. B0 Southbridge Intel 82801DB (ICH4) rev. 01 Sensor chip SMSC 6602

Graphic Interface AGP AGP Status enabled, rev. 3.0 AGP Data Transfer Rate 8x AGP Max Rate 8x AGP Side Band Addressing supported, enabled

Memory   DRAM Type DDR-SDRAM DRAM Size 1024 MBytes # of memory modules 4 Module 0 Infineon DDR PC2300 - 256 MBytes Module 1 Infineon DDR PC2300 - 256 MBytes Module 2 Infineon DDR PC2300 - 256 MBytes Module 3 Infineon DDR PC2300 - 256 MBytes

Software   Windows version Microsoft Windows XP Professional Service Pack 2 (Build 2600) DirectX version 9.0c

India took a big step today by censoring websites just as China does.

http://yro.slashdot.org/article.pl?sid=06/07/17/1732209&from=rss

Where will the ignorance end?

Myspace and slashdot have been giving 500 errors like crazy today. Most sites except mine seem very slow. Is there a network problem, bot, virus or what?

I've been reading online about electrical usage.  Assuming 10 cents per kWh, it costs roughly 15 dollars a month to leave 1 pc on all the time with monitor.  That's assuming you have a fairly energy efficient system.  I calculated 400 watts for 2 "servers" based on other info on the web about modern systems and estimate it costs us 28.8 dollars a month to run the electricity.  That means we don't save any money by running our own servers as i thought we would.  That doesn't even take into account for buying hardware, etc.  Of course without something to calculate electrical usage, i can't be certain what it really costs. My mother's figure of 20 dollars a month when she started turning her pc off makes sense now.  Her monitor isn't very efficient.  Also, watching a movie on tv can use the same amount of power as a computer.  Something to think about next time you leave the tv on.

In contrast, to run a 13 watt light for 8 hours a day would only cost 31 cents (is that right?)  13 watt * 8 hours * 30 days / 1000  then * .10 cents per kWh

To run our netgear gigabit switch costs around 1.30 a month (24/7) if it always consumes its maximum wattage of the ac adapter.  I believe its rated less though. 

If caryn left her monitor on all the time and it didn't go into sleep mode it would cost around 2.15 a month.  (estimating 30watt, although it might be 45)  My monitor would cost over 8.5 dollars!  (crt)  If I were to run my monitor for one year always on it would cost 100 dollars.   In two years time, I could have bought a 150 dollar lcd that runs at 30 watts and still saved 15 dollars (plus covered the cost of electricity for it) 

LCDs are sounding better all the time.   Using my monitor 10 hours a day thats 4.5 dollars a month.  It would take quite awhile for it to make a difference vs buying an LCD. 

Here's an interesting KB article on the different hal types.
http://support.microsoft.com/?kbid=309283

This came up because i've been researching cpu temp monitors for my amd box. I found some info on nforce2 chipsets and problems keeping time. Switching hals seems to help with amd boxes.. thats why they lose time in windows! Mac minis have problems as well. Anything with a moving cpu frequency can. Finally having a fifo enabled can cause havoc! This page has all the info on that and how to turn of fifos
http://ntp.isc.org/bin/view/Support/KnownHardwareIssues

A thread about the problem with nforce2 chipsets
http://www.nforcershq.com/forum/1-vt19631.html

Problems starting with the 2.6.10 linux kernel
http://kerneltrap.org/node/4872

Here's an interesting program
http://www.nt.phys.kyushu-u.ac.jp/shimizu/download/xmbmon/README-xmbmon205.html

This is supposed to work in x11 or command line and detect temp on several chipsets. If so i can monitor changes while the system is up!

I'm half tempted to underclock my cpu if this works as an energy savings as well. I'll wait till i can prove its working right before i even think of trying it.

Here's a thread from an nvidia employee explaining the problems and possible solutions.
http://www.ussg.iu.edu/hypermail/linux/kernel/0410.1/1505.html

The fan controller did it! I'm showing 37C-38C while compiling a kernel. Thats the exact same temperature as my first xeon processor in my dell right now. That also means the amd chip is now cooler under load than the intel (47C). I'm wondering what i could do if i underclocked it.