Berkeley CSUA MOTD:Entry 52576
Berkeley CSUA MOTD
2019/01/19 [General] UID:1000 Activity:popular

2009/2/15-18 [Science/Electric, Science/GlobalWarming, Computer/HW/Drives] UID:52576 Activity:nil
2/15    How many watts does a typical desktop (not counting monitor)
        use when it is completely idling (top shows at most 1-2% CPU),
        assuming normal SATA HD, video card, 2-4G RAM?
        \_ Google did a published study where they determined that the
           largest consumer of energy in a computer is the power supply
           itself. Figure that if you have a 400W power supply you are
           using at least half that if not more even when idle.
           \_ that totally blows. Laptop #1!!!
              \_ Power supply manufacturers need an incentive to make more
                 efficient power supplies. It's probably not hard to do.
                 Google was talking about pushing manufacturers on that
                 issue, but one company is probably not enough.
2019/01/19 [General] UID:1000 Activity:popular

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2008/3/3-6 [Science/GlobalWarming] UID:49317 Activity:moderate
3/3     Photos of weather stations...badly placed weather stations.
        \_ Oh, so global warming is just caused by concrete?  I'm so relieved!
           All those dumb scientists ought to read angry guy's blog!
           FYI, you may wish to read realclimate's "no man is an urban heat
           island" entry:
2006/10/9-10 [Science/Electric, Science/GlobalWarming] UID:44738 Activity:high
10/9    So this whole plugin hybrid campaign thing...  Wouldn't that completely
        fuck the CA power grid if even a few % of drivers bought those?
        \_ the real issue is not rather CA power grid can handel it.
           I was told that if we modify it to make it plugin, it will
           drastically reduce the life span of the rechargable battery of those
           Prius, thus make the car a lot more prohibitive than it would
2006/6/15-17 [Science/Electric] UID:43400 Activity:nil
6/14    I'm in S Cal and LA Dep of Water and Power charges me approximately
        $1.00 per 10KWH (KWH is 1000 watt hours). I don't watch TV at all,
        but my computer's on all the time. Suppose I do get a TV,
        and suppose I watch TV 4 hours a day and the TV is rated at
        300W, how much does that contribute to the cost?   -cheap ass
        \_ Look for a product called "Kill A Watt", it's about $29.
2006/5/12-17 [Science/Electric, Science/GlobalWarming] UID:43031 Activity:nil
5/11    I bought a few expensive LED lightbulbs. Comments: when they say
        an LED is equivalent to X watts incandescent bulb, it's marketing
        bullshit. In reality, it's more like X/2 or X/3. LED bulbs may
        save you a lot of energy, but they're simply not that bright.
        Secondly, they look very very unnatural. With incandescent bulbs,
        you get various frequencies and things look natural. With LEDs,
2006/3/5-8 [Science/Electric] UID:42101 Activity:low
3/5     If an appliance is 220V, can I get an adapter or something for it
        because I have 120V? Thanks.
        \_ A transformer, yes.
        \_ I had a similar problem.  You need to be very careful about
           the actual wattage of your appliance.  A transformer that withstands
           large wattage tend to be very very big (size of couple bricks and
2006/3/6-8 [Science/Electric] UID:42116 Activity:kinda low
3/6     So where can I get a 120V->220V adapter? I'm thinking about buying an
        induction stove which is rated for 3000W at 220V 60Hz.
        \_ in this case, i would strongly approach this with a different route
           than getting a transformer.  3000 watts is too serious of an
           appliance for a 3rd-party transformer.  Most of new household has
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2006/3/1 [Science/Electric] UID:42041 Activity:moderate
3/1     Say I have a circuit breaker that says 20A. How many watts can I load
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        heater (1500W) and hair dryer (1850W) on, the circuit breaker pops.
        \_ P = VI  where P is power in watts, V is voltage in volts, I is current
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2006/2/18-23 [Science/GlobalWarming] UID:41917 Activity:nil
2/18    Back in 2000 I bought a few 23W energy efficient bulbs that
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        (output/energy used) ratio was about 4. Today I bought a
        few more bulbs from Walmart...  7W bulbs that output 40W,
        which has the (output/energy used) ratio of over 5.
        Are new bulbs getting more and more efficient?
2005/2/14 [Science/Electric] UID:36168 Activity:high
2/14    I'm trying to make sure I don't trip my 20Amp Circuit.  How much of
        an amp draw does an average single disk single p4 cpu box take.
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        fuse with a very good chance that it won't trip.  (Assuming I don't
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        \_ 0.5-2.0 amps.  In contrast, a hair dryer uses about 10-14 amps.
2014/1/24-2/5 [Science/GlobalWarming] UID:54765 Activity:nil
1/24    "Jimmy Carter's 1977 Unpleasant Energy Talk, No Longer Unpleasant" (
2012/12/7-18 [Science/GlobalWarming] UID:54550 Activity:nil
12/7    Even oil exporters like UAE and Saudi Arabia are embracing solar
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2012/6/22-7/20 [Politics/Domestic/California, Science/GlobalWarming] UID:54420 Activity:nil
6/22    "Study: The U.S. could be powered by 80% green energy in 2050"  (
        \_ How many Republicans does it take to make green energy?
           -150,000,000! Ding ding ding!
           \_ Because having control of the White House and both houses of
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2012/6/26-7/20 [Science/GlobalWarming] UID:54422 Activity:nil
6/26    WW2 brought us antibiotics, syringe, production capacity,
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        What did the Iraq war bring us?
        \_ HMMWV -> Hummer H1 the gas guzzler.
2011/2/1-19 [Politics/Foreign/Asia/China, Science/GlobalWarming] UID:54022 Activity:nil
2/1     10 Industries in Which the U.S. Is No Longer No.1" (
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        \_ Some of those positions are simply determined by
2010/12/2-2011/1/13 [Science/Space] UID:53986 Activity:nil
12/2    'Starry, starry, starry night: Star count may triple'
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2010/12/1-2011/1/13 [Science/GlobalWarming] UID:53987 Activity:nil
12/1    "US: China rise a 'Sputnik moment' for clean energy"
2010/1/26-2/8 [Computer/HW/Memory] UID:53665 Activity:nil
1/26    What's a good motherboard I can get that will fit in a 1U
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        \_ Buy a mac. Haven't you heard? if you don't buy a Mac people
2009/6/1-5 [Recreation/Computer/Games] UID:53065 Activity:kinda low
5/31    I'm not a hardcore gamer, but I do play games sometimes. Is the
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2008/12/4-10 [Computer/HW/CPU, Computer/HW/Drives] UID:52163 Activity:nil
12/4    A question to you old crufy alumni: So lately we've suggested
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        hardware and been told we don't need that much power. So I'd like to
        ask -- what exactly do you think the CSUA is supposed to _be_?
        \_ Noone said VMs weren't needed.  They suggested you use the
        \_ No one said VMs weren't needed.  They suggested you use the
2008/10/27-31 [Computer/HW/Drives] UID:51700 Activity:nil
10/27   What's a good RAID-1 SATA card to get for the PC?
2008/5/29-31 [Computer/HW/Drives] UID:50086 Activity:nil
5/29    Considering abandoning tape backups in favor of something like this:
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        \_ why?
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2007/10/17-19 [Computer/HW/Laptop] UID:48352 Activity:nil
10/17   There is this magical device that lets me connect a 2.5"
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2007/5/27-30 [Computer/HW/Drives] UID:46768 Activity:low
5/27    I just spend a few hours on a silly BIOS problem and I'm posting it
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2006/4/20-11/12 [Computer/HW/Drives] UID:42787 Activity:nil
4/20    Soda now has a spiffy new kernel that, besides now having the SATA
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2006/11/1-2 [Computer/HW/Drives] UID:45076 Activity:kinda low
11/01   Does WinXP provide good facilities for SATA+RAID? I'm thinking of
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        \_ A lot of MoBos do on-board drive mirroring for SATA, I'd rather
           trust that.  -John
2006/9/10-12 [Computer/HW/CPU, Computer/HW/Drives] UID:44341 Activity:nil
9/11    For those who run his/her own server.  Has any of you tried to run a
        fanless system that uses AMD Operon or Pentium M that is clocked more
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        \_ No, but I have a fanless 800 MHz Via C3, with a big Zalman heatsink.
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2006/8/28-30 [Computer/HW/Display, Computer/HW/Drives] UID:44171 Activity:nil
8/24    Any recommendation for an SATA/eSATA PCI card for Linux?
        \_ Isn't there a hardware compatibility list for the major distros?
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              which has the Silicon Image 3124 chipset.. Any experience with it?