Power consumption of JCOP card

I am having JCOP card which also has the MiFare 4K in it.
And am using our own customized antenna instead of the standard one.
Am facing problem when I place the card bit far(say 6cm) from the card reader, where MiFare able to work without any problem but not JCOP. It induces more current compared to
MiFare. Does any body why JCOP require more power compared to MiFARE.
Thanks in Advance.

Hi
I am student working on a smart card project
i am totally new to this field i have a lot of doughs to be cleared ..can you help me in this section
my id [email protected]
pls kindly give your mail id i will proceed in your id ...i have so many obstacle to develop a smart card application.
i have return my doughs in java card form under the title : What is Client-Side API for RMI on the Java Card Platform
: java card virtual machine

Similar Messages

  • Where can one get power consumption figures for PCI-E Cards?

    as i wrote before im putting together a fairly decent rig, and im doing some heavy duty research into the actual total power requirement for it, using PSUCalc2003.v2 spreadsheet to calculate the total, however ive been unable to get the power consumption figures for my nvidia based graphics accelerator a Gigabyte Tech GV-NX62TC256DS with turbo cache, my guess is that this card is at the lower end of the power consumption spectrum but it would be nice to know the exact figure,
    any ideas on where can i get those figures ?
    thanks.....

    If you buy the 5770 from Apple as an upgrade kit it has the cable(s) - two for the 5870, one for 5770.
    If you bought a mac pro mid-2010 it may very well have come with cable(s), that I have never read or heard from others.
    OWC has not always inicluded cables but has charged extra, as they did with eVGA GTX285 where Apple sold with cables, and buying from OWC added another $30? or more to the cost with cables "extra" is what I recall.

  • NM-32A card power consumption?

    Hello,
    Could anyone please tell me what is the NM-32A card power consumption?
    I can't find this info anywhere.
    Thanks in advance
    BR.

    I'm looking into this to see if I can find it.  Power figures for some cards like this can be more difficult to find.  Do you have access to the Partner Help support where you can ask for this info?
    Out of curiosity, how precise is your requirement for this information?  Are you on an extremely constricted power budget?  If your requirement is not extremely precise, it may be easier to calculate an estimate based on the maximum/typical power draw value for the platform into which the card is being installed.

  • 3000 J converted to NAS, Are there fan control settings/ways to reduce power consumption?

    So I've had this old 3000 J series - (J115 7388) that's been sitting doing nothing for a while, so I decided to convert it into a FreeNAS, I've stripped out the DVD, card readers, anything unneccesary to reduce power usage - on that theme I have a few questions...
    1. Is there a setting in the BIOS to automate the fans as & when needed to make the system quieter & to reduce power consumption - there will be 2x 2tb WD green drives in there with an idle time of 5 mins, atm I'm using one 320GB HDD from an old laptop - the system won't be used 90% of the time & I'd like it to be able to react when needed rather than constantly be on
    the specs http://support.lenovo.com/en_US/detail.page?LegacyDocID=MIGR-67129 say the fan is variable, but I can't see anything obvious in the BIOS, it did take me some time to find the boot order, so maybe I'm overlooking something
    So that's my main question & this is the bonus
    2. I know there's an Nvidia C51G chipset in there somewhere, is it possible to remove this, there's no GUI on the pc anymore, so again, & also anything else like sound, just to make it as efficient as possible & not to have any unessesary components using power
    I have downloaded updated the latest BIOS (circa 2007) onto another pc from http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS001014 - even if it does provide an update to what I already have - I did note 2007 already on the BIOS version, of course I can't run it to try to make a bootable usb as the downloaded exe is for XP
    I'm having a little trouble with the Lenovo site UI, not sure if it's coding - the links to guides/docs/drivers/downloads on http://support.lenovo.com/en_US/guides-and-manuals/default.page?selector=expand just don't seem to be working for me

    Are you sure there are no trojans or viruses on laptop? Also lounch the task manager and check out the service or application with deranged CPU loading while the laptop is in the idle mode. What is the power usage in the idle mode?
    x220 | i5-2520m | Intel ssd 320 series | Gobi 2000 3G GPS | WiFi
    x220 | i5-2520m | hdd 320 | Intel msata ssd 310 series | 3G GPS | WiFi
    Do it well, worse becomes itself
    Русскоязычное Сообщество   English Community   Deutsche Community   Comunidad en Español

  • Actual power consumption on WS-C6509-E

    Hello everyone,
    I have a WS-C6509-E with two WS-CAC-6000W power supplies. I have to determine what is the real power consumption of the whole device but I noticed that there is a mismatch between measurements and show power output so I would very much appreciate if someone could explain why is that so.
    I did the following test to try figure out the consumption from the power grid.
    Step 1. When both supplies are active, show power gives me the following output:
    C6509Test#show power
    system power redundancy mode = redundant
    system power total =     5771.64 Watts (137.42 Amps @ 42V)
    system power used =      2253.72 Watts (53.66 Amps @ 42V)
    system power available = 3517.92 Watts (83.76 Amps @ 42V)
                            Power-Capacity PS-Fan Output Oper
    PS   Type               Watts   A @42V Status Status State
    1    WS-CAC-6000W       5771.64 137.42 OK     OK     on
    2    WS-CAC-6000W       5771.64 137.42 OK     OK     on
                            Pwr-Allocated  Oper
    Fan  Type               Watts   A @42V State
    1    WS-C6509-E-FAN      150.36  3.58  OK
                            Pwr-Requested  Pwr-Allocated  Admin Oper
    Slot Card-Type          Watts   A @42V Watts   A @42V State State
    1    WS-X6748-GE-TX      325.50  7.75   325.50  7.75  on    on
    2    WS-X6748-GE-TX      325.50  7.75   325.50  7.75  on    on
    3    WS-X6748-GE-TX      325.50  7.75   325.50  7.75  on    on
    4    WS-X6748-GE-TX      325.50  7.75   325.50  7.75  on    on
    5    VS-S720-10G         338.10  8.05   338.10  8.05  on    on
    6    VS-S720-10G         338.10  8.05   338.10  8.05  on    on
    7    WS-X6724-SFP        125.16  2.98   125.16  2.98  on    on
    system auxiliary power mode = off
    system auxiliary power redundancy operationally = non-redundant
    system primary connector power limit =   10920.00 Watts (260.00 Amps @ 42V)
    system auxiliary connector power limit = 10500.00 Watts (250.00 Amps @ 42V)
    system primary power used =              2253.72 Watts (53.66 Amps @ 42V)
    system auxiliary power used =            0 Watt
    Step 2. Then I switched off power supply 1:
    C6509Test#
    *Jan 22 09:29:21.753: %C6KPWR-SP-4-PSOUTPUTDROP: Power supply 1 output has dropp
    ed
    *Jan 22 09:29:21.769: %C6KPWR-SP-2-PSFAIL: power supply 1 output failed.
    *Jan 22 09:29:21.769: %C6KPWR-SP-4-PSREDUNDANTONESUPPLY: in power-redundancy mod
    e, system is operating on one power supply.
    C6509Test#
    C6509Test#show power
    system power redundancy mode = redundant
    system power redundancy operationally = non-redundant
    system power total =     5771.64 Watts (137.42 Amps @ 42V)
    system power used =      2253.72 Watts (53.66 Amps @ 42V)
    system power available = 3517.92 Watts (83.76 Amps @ 42V)
                            Power-Capacity PS-Fan Output Oper
    PS   Type               Watts   A @42V Status Status State
    1    WS-CAC-6000W       3780.00 90.00  -      -      off
    2    WS-CAC-6000W       5771.64 137.42 OK     OK     on
                            Pwr-Allocated  Oper
    Fan  Type               Watts   A @42V State
    1    WS-C6509-E-FAN      150.36  3.58  OK
                            Pwr-Requested  Pwr-Allocated  Admin Oper
    Slot Card-Type          Watts   A @42V Watts   A @42V State State
    1    WS-X6748-GE-TX      325.50  7.75   325.50  7.75  on    on
    2    WS-X6748-GE-TX      325.50  7.75   325.50  7.75  on    on
    3    WS-X6748-GE-TX      325.50  7.75   325.50  7.75  on    on
    4    WS-X6748-GE-TX      325.50  7.75   325.50  7.75  on    on
    5    VS-S720-10G         338.10  8.05   338.10  8.05  on    on
    6    VS-S720-10G         338.10  8.05   338.10  8.05  on    on
    7    WS-X6724-SFP        125.16  2.98   125.16  2.98  on    on
    system auxiliary power mode = off
    system auxiliary power redundancy operationally = non-redundant
    system primary connector power limit =   10920.00 Watts (260.00 Amps @ 42V)
    system auxiliary connector power limit = 10500.00 Watts (250.00 Amps @ 42V)
    system primary power used =              2253.72 Watts (53.66 Amps @ 42V)
    system auxiliary power used =            0 Watt
    Step 3. Now I disconnect the power input 1 on running power supply 2 thus leaving the device working on only one out of four power inputs:
    C6509Test#
    *Jan 22 09:35:50.297: %C6KPWR-SP-4-INPUTCHANGE: Power supply 2 input has changed
    .  Power capacity adjusted to 2671.20W
    *Jan 22 09:35:50.297: %C6KPWR-SP-4-PSOUTPUTDROP: Power supply 2 output has dropp
    ed
    C6509Test#show power
    system power redundancy mode = redundant
    system power redundancy operationally = non-redundant
    system power total =     2671.20 Watts (63.60 Amps @ 42V)
    system power used =      2253.72 Watts (53.66 Amps @ 42V)
    system power available =  417.48 Watts ( 9.94 Amps @ 42V)
                            Power-Capacity PS-Fan Output Oper
    PS   Type               Watts   A @42V Status Status State
    1    WS-CAC-6000W       3780.00 90.00  -      -      off
    2    WS-CAC-6000W       2671.20 63.60  OK     OK     on
                            Pwr-Allocated  Oper
    Fan  Type               Watts   A @42V State
    1    WS-C6509-E-FAN      150.36  3.58  OK
                            Pwr-Requested  Pwr-Allocated  Admin Oper
    Slot Card-Type          Watts   A @42V Watts   A @42V State State
    1    WS-X6748-GE-TX      325.50  7.75   325.50  7.75  on    on
    2    WS-X6748-GE-TX      325.50  7.75   325.50  7.75  on    on
    3    WS-X6748-GE-TX      325.50  7.75   325.50  7.75  on    on
    4    WS-X6748-GE-TX      325.50  7.75   325.50  7.75  on    on
    5    VS-S720-10G         338.10  8.05   338.10  8.05  on    on
    6    VS-S720-10G         338.10  8.05   338.10  8.05  on    on
    7    WS-X6724-SFP        125.16  2.98   125.16  2.98  on    on
    system auxiliary power mode = off
    system auxiliary power redundancy operationally = non-redundant
    system primary connector power limit =   10920.00 Watts (260.00 Amps @ 42V)
    system auxiliary connector power limit = 10500.00 Watts (250.00 Amps @ 42V)
    system primary power used =              2253.72 Watts (53.66 Amps @ 42V)
    system auxiliary power used =            0 Watt
    C6509Test#
    *Jan 22 09:37:22.317: %C6KPWR-SP-4-INPUTCHANGE: Power supply 2 input has changed
    .  Power capacity adjusted to 5771.64W
    *Jan 22 09:38:58.523: %C6KPWR-SP-4-PSOK: power supply 1 turned on.
    *Jan 22 09:38:58.535: %C6KPWR-SP-4-PSREDUNDANTBOTHSUPPLY: in power-redundancy mo
    de, system is operating on both power supplies.
    C6509Test#
    Step 4. I used the current clamp to measure the current on the remaining power input and it reads 4.9 A.
    When I multiply the current with voltage I get 
    P=4.9*230=1127 W.
    So why does the show power output gives system power used = 2253.72 Watts, which is actually double value of measured 1127 W? What am I missing?
    Thank you in advance for any help on this,
    Marin

    marin_otto.
    Where are you located and what AC line voltage are you operating on (208 or 230v)?  I ran into your post and was wondering if you were operating on 208v which is line to line (two hots) and perhaps you are only measuring current on one line, effectively half the power.
    Dave

  • Power Consumption Revisited

    I was reading an article on tomshardware.com the other day in which they described a process by which they were able to measure the power consumption of various video cards using a simple device that plugs into a standard wall socket and then displays the number of watts the currently plugged in device is using.  In light of the ever-increasing PSU recommendations that tend to show up here (I recall seeing one poster recommend "a PSU with 24 or more amps on the +12V rail for anything other than a barebones system"), I decided that it might be beneficial to these forums if I did a little empirical study of my own.  So anyways, I shelled out ~$30 for the device shown here:
    http://www.supermediastore.com/kilwateldet1.html
    ...and ran some tests of my own.  The results:
    Preliminary Testing -
    To verify that my power meter would give reasonably accurate readings, I first hooked it up to a 3-way lamp with a 50/100/150 watt bulb installed.  The readings returned for the 50/100/150 watt settings (respectively) were 44/94/142, so it would seem like my power meter is at least reasonably accurate.  Some other stuff I measured just for the hell of it...my speakers use 3 watts of power in stadby mode, and 30 watts when active (haven't yet tested when active and playing at full volume), and my monitor uses about 70 watts when on, and about 2 watts in standby mode.
    Results -
    Satisfied that I had not just wasted my money on an inaccurate power meter, I then went and hooked it up to my PC (the one described in my sig) and measured the power consumption under a variety of circumstances.  It is important to note that these readings reflect the total amount of power drain being applied to the wall socket, not the amount of power that is actually being demanded by the system.  This is because no PSU is 100% efficient (a good one will be maybe 80% efficient, if even that much), so the amount of power that is actually needed by the system is actually about (at least)20% *less* than the recorded values.  Anyways:
    During startup, the power usage spikes very briefly at 197 watts, then averages 152 watts over the rest of the boot cycle.
    The system uses 134 watts of power when idling.
    Under full CPU load, the system uses 168 watts.
    Running 3d Mark 2001 the power usage is 169 watts.
    Playing Far Cry (high detail settings, 1024x768x32), the power usage is again 169 watts.
    Conclusions -
    So, let's now assume a worst-case scenario, in which the extra 34 watts recorded during full CPU load came entirely from extra CPU power drain (a reasonable assumption), and in which the extra 35 watts recorded during 3d Mark and Far Cry came entirely from extra video card load (a much less reasonable assumption), and in which we have a PSU that is 90% efficient (greater efficiency means that the system would actually have to demand *more* power in order to get the total power drain up that high).  In this case we see that if an application were developed that fully taxed the video card and CPU continuously, the total power drain would be 134 + 34 + 35 = 203 watts (which actually correlates rather nicely with the 197 watt spike observed during the boot cycle), meaning that the system is demanding about 183 watts from our unrealistically efficient PSU (note that with the PSU efficiency set to a more realistic 75%, the system would only be demanding a mere 153 watts of juice at full CPU and video card load).  
    Admittedly, the video card in my system is relatively weak, so let us again take the worst case scenario and assume that if I were to be using a 6800 Ultra, the total power drain would be 100 watts greater (this is above what the actual difference should be given the results posted on tomshardware.com regarding the power use of the 6800 Ultra), so our video card now consumes an astounding 135 watts of power, and our total power drain (in our unrealistic situation where we have some application which is capable of 100% CPU and video card utilization for a sustained length of time) is now 303 watts.  With our unrealistic 90% efficient PSU, it would mean that the system is demanding about 273 watts from the PSU (about 228 watts with a 75% efficient PSU).
    Note that aside from the weak video card, I have a fairly robust system (which also happens to be slightly overclocked), with 4 HDD's (two of which are WD Raptors), 2 optical drives, several PCI devices, and two large 120mm case fans, and yet the power demands of this system, even in an unrealisticly demanding situation, are *well* within the ability of a quality 380W (or even 300W) PSU to deliver.  In this case even if all the power happened to be being sucked off of the +12V rail (which is not the case), any PSU with 18 amps at +12V could still handle it.  Furthermore, even if I were to add a needlessly power-hungry video card into the mix, the power demands are *still* safely within what any decent 380W PSU should be capable of (and even what a quality 300W PSU should be capable of, although this may be pushing it a little, though it should always be noted that the numbers indicate a hypothetical worst-case power drain that should be beyond the maximum drain possible in any real-world situation).
    So, we can therefore conclude that the power demands of a reasonably robust Athlon64 based system are not astronomical by any means, and that they do not justify a minimum recommendation of a 465W PSU with 24+ amps on the +12V rail for any system which is not "barebones," and that there is no observational evidence to support the idea that a PSU with 18 or fewer amps at +12V is categorically inadequate for use in an Athlon64 based system.
    ...anyways, I guess that's all, I hope you found this interesting, or at least informative.  I'm off to see what else I can do with my power meter thingy...

    Really?  Do you have measured data which clearly supports your claims, or are you just holding up an opinion as a matter of fact?
    My point was, my measured results show that the total power demand of an Athlon64 based system across *all* of the rails is fairly low, even at 100% system load.  So, let's recalculate things assuming a 75% efficient PSU, with 75% of all load being at + 12V (which is still probably higher than the actual value), and let's leave the hypothetical 6800U inside of my system.  We get .75 * 303 = 227 watts in total that the system is demanding.  Of these 227 watts, the system is demanding .75 * 227 = 170 watts over the +12V rail.  170 watts / 12V gives us a total demand of 14.2 amps on the +12V rail.  Note that this is with the hypothetically demanding 6800U card installed and is still likely to be at least a couple amps higher than what a *real* system would ever use, and any *quality* PSU capable of 18 amps at +12V should still be perfectly adequate for use in the system.
    Furthermore, PSU efficiency dropping to 60% in real world situations supports my results, as it means that the actual system was demanding substantially *less* power than the system in my hypothetical example, making things even *easier* for the PSU.  Re-running the above equation with a 60% efficient PSU and 75% of all power demand coming from the +12V rail, we see that the system is only asking for 11.4 amps at +12V at full load with a 6800U installed (and also at full load).
    If you want to disagree with my results, that's fine, but don't expect me to take your argument as credible unless you have some actual, measurable data to back up your claims.  Saying "this is the way things *really* work because I say so" doesn't cut it, so until you want to break out a multimeter and measure the amps your PSU delivers to the MB on the +12V rail at boot, idle, load, and gaming and then report your results and discuss whether or not they are consistent with your "amps are what counts" hypothesis, I hold my results and conclusions up as being valid, and as soon as I see any measured results which contradict mine, I will gladly stfu about PSU recommendations being needlessly high.

  • N660 TF 2GD5 - PerfCap/GPU load/Power consumption problem

    Hello,
    at first, sorry for my english, I will try to do my best.
    I have problem with my GPU when I play Battlefield 4. Problem occours with newest Nvidia drivers, also with beta and older drivers.
    Problem is that I have huge FPS drops periodically, coming maybe every 5 minutes for 15-20 seconds, for example in BF4 it means FPS drops from 50fps to 15fps, really annoying.
    It does not matter at scene complexity, it´s the same in huge battles as when I am alone looking up to the sky.
    I was searching why is this happening and GPU-Z helped me to indentify PrefCap, and immediately GPU load + Power consumption going down from 100% to 40-50%
    I have a screenshot, but can´t findout how connect attachment (external links are not allowed).
    Could somebody explain me what is the problem and why is this happening? I am thinking about to sell my MSI graphics card and buy another one because of this, I don´t want any throtling problems because of compatibility or whatever   
    Is there any way how to turn it off or disable? Register, something.
    Thank you

    you seems to be right guys.
    I undervoltaged my CPU by -0.1V, lovered Frequency to 3600MHz and problem is gone.
    So, time for new PSU 

  • [Solved] High power consumption of eth0

    Hi everyone,
    i successfully installed Arch on my new Acer Travelmate P653-MG a few months ago with the Gnome DE. Everything worked fine until a few weeks ago, when i discovered a really hard power regression due to my network interface. Before i had a solid 12 W of power consumption (without that much of finetuning), but afterwards my power consumption jumped to 23-25 W. I have attached two screenshots of my current powertop output:
    http://i.imgur.com/8tpSnXf.png
    http://i.imgur.com/CaVg61A.png
    Unfortunately i can't quite say when this regression occured, so as to point to a certain update. My first guess was, this had to be kernel specific, but the downgrade from kernel 3.7 to 3.6 brought no results. I must admit after hours of searching google, the arch wiki and the forum here, i'm at a complete loss. I have discovered no one with a similar problem.
    If anyone can help me in this matter, your help would be very much appreciated!
    My current kernel parameters are: quiet splash nmi_watchdog=0 acpi_osi=linux acpi_backlight=vendor
    Please tell me any outputs i can provide which could be of help to you.
    Greetings
    -- mod edit: read the Forum Etiquette and only post thumbnails http://wiki.archlinux.org/index.php/For … s_and_Code [jwr] --
    Last edited by ToshiroTaicho (2013-02-16 22:08:07)

    Thanks for your suggestions, but i was finally able to figure it out myself. linux-lts was unfortunately no option for me, as i want to use bumblebee. But the direction, this pointed me to was good. It seems one of the kernel updates broke my bumblebee package, so the power management didnt work and the card was constantly powered on. This was nothing new, but my powertop completely messed it up, by adding this additional power consumption to eth0. Funny enough, this power consumption even disappeared, when i unloaded eth0. After deleting powertops saved results and recalibrating it, it now shows up all components power usage correctly.
    Thus i mark this thread as SOLVED.

  • [SOLVED] Huge power consumption after kernel upgrade.

    Dear All,
    I have recently bought the new lenovo thinkpad X1 equipped with a Core I5 processors and 4GB of RAM.
    I am quite satisfied with this machine except for the fact that the fan is extremely loud (but perhaps a bios upgrade will fix problem).
    Now my problem:
    When I first installed Arch (first days of August) I ran powertop and the power consumption was around 10 Watts when idle with wifi card turned off.
    Now, after some upgrades, the power consumption raises to 18W in idle and consequently the battery lasts less than 2h.
    Here my current configuration:
    Linux think-x1 3.0-ARCH #1 SMP PREEMPT Tue Aug 30 08:53:25 CEST 2011 x86_64 Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz GenuineIntel GNU/Linux
    and here the powertop output obtained with the cpu frequency governor set to "On demand":
    Cn Avg residency P-states (frequencies)
    C0 (cpu running) ( 5.3%) Turbo Mode 0.1%
    polling 0.0ms ( 0.0%) 2.50 Ghz 0.0%
    C1 mwait 0.2ms ( 0.1%) 2.21 Ghz 0.0%
    C2 mwait 0.3ms ( 0.0%) 1200 Mhz 0.1%
    C3 mwait 2.4ms ( 0.0%) 800 Mhz 99.8%
    C4 mwait 13.1ms (94.6%)
    Wakeups-from-idle per second : 76.1 interval: 3.0s
    Power usage (ACPI estimate): 15.7W (2.8 hours)
    Top causes for wakeups:
    46.5% (135.7) kworker/0:0
    17.7% ( 51.7) PS/2 keyboard/mouse/touchpad interrupt
    11.9% ( 34.7) [kernel scheduler] Load balancing tick
    8.6% ( 25.0) [iwlagn] <interrupt>
    2.9% ( 8.3) [i915] <interrupt>
    2.6% ( 7.7) [acpi] <interrupt>
    1.8% ( 5.3) chromium
    1.6% ( 4.7) [kernel core] hrtimer_start (tick_sched_timer)
    1.5% ( 4.3) kworker/0:1
    0.7% ( 2.0) minilogd
    0.7% ( 2.0) [kernel core] iwl_bg_watchdog (iwl_bg_watchdog)
    0.6% ( 1.7) X
    0.6% ( 1.7) [kernel core] intel_gpu_idle_timer (intel_gpu_idle_timer)
    0.3% ( 1.0) Terminal
    0.3% ( 1.0) [kernel core] tpt_trig_timer (tpt_trig_timer)
    0.2% ( 0.7) [mmc0, mei, ehci_hcd:usb3] <interrupt>
    0.2% ( 0.7) upowerd
    0.1% ( 0.3) init
    0.1% ( 0.3) gpg-agent
    0.1% ( 0.3) [kernel core] ieee80211_sta_reset_conn_monitor (ieee80211_sta_conn_mon_timer)
    0.1% ( 0.3) wicd-client
    0.1% ( 0.3) kworker/u:3
    0.1% ( 0.3) watchdog/0
    I have also tried to disable most of the running daemons and unload some modules, but I have never got less than 14/15W when idle, which in my opinion is definitely too much!
    As far as I'm concerned, the kworker process is responsible most of the wakeups. 
    Any ideas?
    Last edited by jacopo_c (2011-09-05 13:12:16)

    pogeymanz wrote:I read somewhere that the kernel devs really don't see this as an issue. They just expect that laptop owners should know to try these boot parameters. So, definitely not by 3.1.
    from https://bugzilla.redhat.com/show_bug.cgi?id=727579:
    Dave Jones 2011-08-03 15:32:21 EDT
    enabling it by default in 3.0 caused regressions for some people, so it was
    disabled. Hopefully Intel figures it out, and we can switch it back on by
    default in 3.1 / 2.6.41 (until then, you'll have to set it by hand).
    Interesting stuff, also recommend this thread on phoronix:
    http://phoronix.com/forums/showthread.p … Regression
    Last edited by masteryod (2011-09-12 00:30:00)

  • RAM consumption on JCOP

    Does anybody know, which mechanisms control the RAM allocation in JCOP cards?
    When I was young and naive, I believed that all memory allocated in applet should be released after the instance of applet is deleted.
    Unfortunately recently I have found the following trouble:
    when I instantiate VSDC applet on my JCOP card, personalize it and then delete the instance, I encounter that the amount of memory available for transient objects has decreased.
    Then, when I perform the same sequence once more, I see no memory leaks.
    On my suspicion, this memory consumption is related to RSA key initialization (it happens just after the loading of RSA key in applet).
    Saying more, I have strong suspicion that the memory consumption happens every time when any applet stores some RSA key (but just once for the key of certain length).
    In other words, I suspect that the JCRE 'eats' certain portion of RAM memory for each case of storing RSA key of certain length. It leads to very confusing effect when encounter the leak of resources after instantiating and further deletion of applet.
    Could anybody approve or disprove this suspicion?
    Have anybody ever encountered such a problem?
    Thanks in advance.

    But the package that contains VSDC applet should be located in ROM.
    Thus, how the key instance could be static?
    My applet is located in EEPROM (both package and instance). When I use RSA key instance in the first time, I lose RAM as well.
    As I mentioned before, this leak is permanent, and deletion of both instance and package does not release this memory (however, any subsequent loading and using of the same applet does not lead to further memory leaks).
    Any ideas or explanations?
    (Excuse me for my English. I would really appreciate your help).

  • Power consumption double compared to windows... where could energy be

    I just bought a new Laptop (Acer Aspire 5755g), and first thing after I got it was, of course, installing arch ;-)
    However, I noticed that the energy consumption under Linux is at least about 22 Watts in idle mode, while it uses only 10 Watts on the preinstalled Windows 7. I was wondering where the big power leak could be. That's what I already thought of:
    • I enabled most of the laptop-mode energy saving options, that means ondemand CPU governor, soundcard/ethernet/wireless powersavings, usb autosuspend, hard drive power saving etc...
    • Since it is a nvidia optimus laptop, it has two graphics cards. However, I disabled the nvidia graphics card in the BIOS (what saved about 5 Watts), and I think the remaining "cheap" intel chip should not use that much power.
    • The laptop has an LCD LED display that can be quite bright. However, the 22 Watts are measured when background light is almost at the minimum.
    Are there any ideas, where else the problem could be?
    I know of the kernel power regression discussed on phoronix recently, but can this really double the power consumption?

    rggjan wrote:
    I just brought it down to under 8 Watts! Using this trick:
    http://www.phoronix.com/scan.php?page=a … ower&num=1
    What made the laptop finally turn of the fans, and really saves a lot of power...
    Indeed, this and the pcie_aspm option, plus disabling the NVidia card with power management from Bumblebee (extra dangerous BTW, I would not recomend, though I use it) and unloading some modules, took my Alienware M11xR3 consumption down to 7.95W.

  • Power consumption

    What is the maximum and average power consumption on an xServe G5 cluster node?

    Apple only ever publish maximum power draw levels for the family - in this case, according to the technote, that's 4A @ 110V (or 2A at 220V).
    However, you have to bear in mind that the same spec is given to the single processor, dual processor and cluster node versions of the XServe G5. Clearly a dual processor machine with three drives, two PCI cards and a DVD drive is going to pull more power than a single CPU system with one drive and no PCI cards.
    This also extends to typical power draw - the system dynamically adjusts to load, so while a fully-spec'd machine could pull 4A under stress (e.g. CPU maxed, all fans at top speed, three drives in a RAID 5 config reading and writing, etc.), it might pull less than 1A if it's sitting idle waiting for something to do. Therefore there is no such thing as 'average' since everyone's circumstances are different.
    Most of my servers sit in the 1A - 2A range if that's any help.

  • Creative Staff Read Please - Power Consumption of Audigy 2

    Please provide me with the technical spec for the Audigy 2 ZS.
    I am looking at the power supply related to the Audigy 2 ZS and how it fits into my system. I need to know how much amps it can draw from the PCI slot, which voltage (2V, 5V, etc.), and how much amps at each voltage. Please assume it is connected to the Creative speaker system Inspire T7700 if that is relevant.
    I've been working to get this system running stable since early December (nearly 3 months). I've replaced the RAM twice, the video card twice, and the motherboard once.
    Please provide me with the above information so that I can continue to use your nice product(s). I've been a customer since the first Soundblaster (an early revision too) model CT-320.

    First, since you've replaced so much stuff already, try taking things a little slower. You're doing something to fry all these parts. In my experiences, very few parts are defecti've from teh manufacturer (at least when you buy from a reputable source...).
    As said above, you don't need to know the power consumption of the sound card to buy a fitting PSU. Also, as he said, buying a more powerful PSU is better then one that's too weak.
    What are your specs? Have you built the rig already, and has it worked (POST, booted) yet? Where are you getting the parts from? ESD wriststrap? Compatible parts?
    I have a strong feeling a few of your parts aren't compatible, and so your rig isn't POSTing. Incompatible memory, for instance, means you won't post, at all. Plus you won't hear any mobo beaps unless you have a case speaker (or an older board). Post up your parts and we'll see if we can find the problem.

  • Power consumption under Vista.

    I know this isn't really a photoshop thing, but I happened to discover it while I was playing with photoshop!
    I have a performance monitor for my graphics card, and it told me that the card used to run at 270MHz for 2D applications under XP.
    Now I have loaded Vista, the card is running flat out at 3D performance levels of 666Mhz, all the time. This is despite the fact that I have disabled all the Vista mega graphics.
    I manually underclocked the card to 335Mhz, and there is no difference in Vista performance. Especially, there is no difference with Photoshop. But of course, running at the lower f, the GPU will be consuming less power and have alonger life, etc. I mean the running temperature dropped a fair old bit!
    Does anyone know why Vista is running the card in 3D mode all the time? It possible to get it to stop?

    > but he is trying to downgrade an upper-end card.
    that was part of my point. i wonder if he's stressing the card because it's not running the way it's supposed to (like translate this to that and back to this in order to display downgraded.). i suggest he turn aero back on and check his performance mon again to see if there's any change/improvement.
    >I think that he would need a better case if heat is an issue
    agreed. or better cooling system.
    > and power consumption is not going to decrease that much, probably needs a better power supply.
    possibly that too, but not necessarily.

  • Can i lower cisco 4506 power consumption.

    I just bought old cisco 4506 with SUP4 + 2x48GB  3x48FE poe and have a plan to use it in my small office. (>20 port GB used)
    I heard this chassis is power sucker so i need to lower it power consumption. can you tell me what i can do? such as
    shutdown module that i doesn't used.
    shutown some switchport.
    power off 2nd power supply.
    or your guys has alternative way ex. Cisco EnergyWise?
    Thanks

    I'm using EnergyWise.  I don't see any relevance as to WHY you would want to use it.  I also don't see any information about your PoE requirement, hence, no comment on how you'd like to save money by powering down PoE.  
    The power requirement for the 4506 would, most likely, be LESS than getting six PoE switches individually. 
    I mean, if you don't use PoE, the line cards will only draw what is required.  So trying to save money from energy consumption of the chassis won't make a lot of sense.

Maybe you are looking for

  • I got a few free app before and did not download them completely how can i remove them from my account forever

    i got a few free app before and did not download them completely and dont want to do this but they stay in my download list and start automatly when i connect to itunes store and going to crazy me how can i remove them from my account for ever please

  • A link visible in IE but not in FireFox

    A link "Intimation/Hall ticket for October 2011 Exam" at www.nios.ac.in is not visible in FireFox. Whereas same link is visible in Internet Explorer. Tried the option of clearing cache also.

  • Undo Sync

    I have an iPhone 3G and just got the iPhone 4 Managed to sync the 4 with the "profile" of the 3G on the computer but I wanted to create a new "profile" Is there a way to undo the sync or reset the 4 to how it was when I opened it from the box?

  • Parameter in SYS_CONTEXT('USERENV'

    Hi, is there any parameter in SYS_CONTEXT('USERENV' that shows the name or IP adresse of database server ( machine on which DB is running) ? many thanks. I know the followings but non lets know (but if I'm wrong). SYS_CONTEXT('USERENV','TERMINAL') te

  • Include doesn't work for 5.1