Using DC supply to power module

I am planning to change my power infra into a all DC to get rid of clumsy UPS system. Other goals are simplifying the power infra, having true no-break system and increase energy efficiency
Is it possible to run, say Catalyst 6500, with 220V DC input?
I know that all power modules are made with SMPS architecture and can run on both DC & AC power supply but zero-crossing detectors, if installed, inside power supply module is making the trouble.

The key to erasing media with a magnet is relative motion. Either the magnet (or it's field) must be moving or hte media must be moving. With a Hrd Drive (wheter it is in an iPod, a laptop or a desktop is spinning. If you place a permenant magnet next to it ther eis relative motion and you can get erasure. If the drive is powered off, this is much harder to do.
The drives themselves (and magnetic tape erasers) use fluctuating magnetic fields to do the easing.
The shuffle is 'solid state'; it has no moving parts. It would be very, very hard to erase it with any magnetic field, especially one from the power connector which is not fluctuating. Put one or 2 unneeded files on the shuffle and test it. Hold it near that magnet or a stronger one and see if the files are damaged. I expect they will survive.
What has happened to me (and I expect has happened in this case) is that you did not wait for the Mac (or the PC) to finish writing to the drive before removing it. When I get in a hurry I usually end up reformatting mine. The drive must be ejected from both computers (on the pc this can take 2 steps) and you must wait for the lights to go out before removing it.

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Can i use HP 90 watt power supply in place of my 120 watt?

I have an HP Elitebook 6930p, that uses a 120 watt power supply. It's output is 18.5 volts and 6.5 Amps.
I have another power supply that I want to use when I take my laptop home. It is from a different HP laptop computer and is only a 90 watt power supply. It's output is 19 volts and 4.74 Amps. Can I use this power supply to run my laptop? Thank you for your help. Al

i have hp pavillion dv6t-7000 quad edition and it has 120 watts 19.5 volts but unfortunately the charger is not working anymore,ive tried my gfs dell charger which is 90 watts 19.5 volts...its workinng on my laptop but if you play games like nba 2k13 it will gonna be so laggy or very slow....i bought 120 watts 18.5 volts smart ac adapter on amazon and its working on my laptop also but im still experiencing laggness a little bit...but its better than the 90 watts 19.5 volts of my gf...maybe that her charger makes my laptop get a lil bit slower and laggy....now im planning to reformat my laptop to put it back to its normal speed again...

Can i use my mac on power supply when battery is fully charged??

can i use my mac on power supply when battery is fully charged??

Keep the computer plugged in whenever possible.
If you keep the computer always plugged in, make sure that twice a month
run it on battery until battery level drops to about 50-40%.
Maximize Runtime / Tips for maximizing your battery charge
http://support.apple.com/kb/HT1446
More about batteries:
http://www.apple.com/batteries/notebooks.html
Macbook Pro Battery Cycle Count
http://support.apple.com/kb/HT1519

Inline power module timeout?

I have a 6513 with WS-X6148-45AF linecards supplying power to Cisco VoIP phones.
yesterday, one of the blades experienced an error that was reflected in the logs as
...inline power module timout (25)
All the phones on the blade went down (rebooted)
Anyone know what this error is all about?

Hi,
This could be due to the following:
https://tools.cisco.com/bugsearch/bug/CSCed87264/?reffering_site=dumpcr
Hope this helps. Remember to rate any useful posts.

Can you use a Macbook Pro power connector on a Mac Air?

Can you use a Macbook Pro power supply on a Mac Air?

Here's where Apple says it's ok too.
http://support.apple.com/kb/HT2346

Why can't I make Lightroom use all the CPU-Power (all cores) available for generating Previews?

Dear Lightroom Team,
I've been a Lightroom user since the very first Beta, and I am truly happy with the work you deliver. It changed my way of editing forever, and you guys keep improving it.
Yet there is that one question that bothers me, and that i'm looking for an answer for.
My Workflow has the generate Previews checkbox checked by standard. I usually import between 150 and 2000 photos at once, on occaions it can be up to 5000 photos. Generating Previews always takes a significant amount of time, and Lightroom is only using 25% of my CPU Power while doing so. (using a MacBook Pro 8,2)
I understand the concept, that only using 25% CPU enables me to use the computer while waiting for the Previews. But most of the time I just grab myself a cup of coffee, do the dishes or other stuff, while waiting for the Previews. Usually I rund out of things to do, because it takes ages to Process all the photos. So I would really love to make Lightroom use ALL the cpu power possible.
I'm sure you guys have spent a lot of thoughts while coding this and have a very good answer handy. Looking forward reading it!
all the best,
Wolfgang

Wolfgang Lienbacher wrote:
I was actually hoping to get an official reply from adobe ...
This is prmarily a user-to-user forum. The Adobe staff monitored site is here:
http://feedback.photoshop.com/photoshop_family
On my four-year old Windows 7 i7-860 system LR4.4.1 takes ~0.5 sec. per Canon 5D MKII 21Mp raw image to render 'Standard-Sized' previews with LR Catalog Settings 'Standard Preview Size' set to '2048' pixels. I consider that pretty fast!
I usually build 1:1 full-size previews on import, which takes ~5.0 sec. per image. Processor utilization varies between 15-50% for Standard-Sized previews and 15-65% for 1:1 previews. I consider this pretty slow, but it doesn't stop me from working on the images inside LR's Library and Develop modules.
I wait until 'Copy and import photos' has completed and can see Preview Building has started. LR doesn't slow-down much even with the 1:1 preview building going on in the background. Have you tried working in LR during the preview building (i.e. sorting, rating, keywording, and Develop adjustments)?

Use of WRT54G after Power Surge

I was very satisfied with my WRT54G v2 until I went on vacation and came back. While on vacation a power surge or lightning struck and wiped out a bunch of things from my garage door opener to office: cable modem (no ethernet port), router (no internet port), old BEFSR41 used as a switch (power supply dead).
After puttering for awhile, the WRT54G has some limited lifesigns.
-- wireless access works fine
-- switch ports work fine
-- Internet port does not work
Question:
-- Is this something that is serviceable?
-- Can it be converted into an access point or something?
Are old power supplys available for BEFSR41? or is it just junk now (even with supply, it could be fried)
A few thoughts would be worthwhile

You can still use the router like a wireless switch. It can be either connected straight to a modem for a single wireless computer or be connected to an existing network that has a router.
All you have to do is connect this router to the modem on any of it's switch ports and same thing if it'll be connected to a switch or a router.

X200 black screen and beep sound when power module is plugged on and off

Hello,
I have the following problem. Today I turned on my X200 without power module, and when I plugged in power - the screen starts to flicker. This was not before, and I am using my laptop only during a week.
After that I turned on the laptop with power module, it was OK, but when I plug out and plug in power module, computer makes "beep" sound and becomes black for a second. Is that normal behavior?
Thank you!

does your battery hold a full charge. is it in good shape. is your machine under warranty. you could try support, but they're probably just gonna tell you to open a service claim. another thing, did it always do this or is this something that just started. did you just download any updates and this started right after. or did it just start doing this for no reason.
T430u, x301, x200T, x61T, x61, x32, x41T, x40, U160, ThinkPad Tablet 1838-22R, Z500 touch, Yoga Tab 2 Windows 8.1, Yoga Tablet 3 Pro
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Possible to AVOID RECHARGING while using AC adapter to power up on Zen Tou

Hi there,
I would really want to know if there's a possibilty that I can use the supplied AC adapter only for powering up the Zen Touch, but not recharging the battery everytime I plug in the adapter?
For example I've some amount of charge in the battery but want to spare that part for a walk outside in the afternoon. Meanwhile I want to power up my Zen with the AC adapter at home. But everytime I plug in the adapter, it starts to recharge. Well, recharging the battery when it's not fully empty would probably reduce its overall life. So what should I do?
I saw a display symbol consisting of a "small plug" icon (not a "plug in a battery" icon) on the users guide with an explanation: "using AC adapter to power up"
Is it possible? Thank you very much at all.
Best Regards
Adnan AK, MD.

There's no way to disable it, but it's actually very good for Lithium Ion batteries to be charged in a shallow way. More here on batteries.

New itunes using up all my power

Ever since installing the new itunes i cant import new cds as the computer is using up all its power. if i try to use another application at the same time as itunes the computer just freezes now. i've tried reinstalling and no change

I am experiencing the same issue when ever I add a Genera iTune Pinwheels and starts using up all of my system memory. I took my computer to the apple store and they found that I had a bad Ram module. I will see if the issue persist after the new ram module come in. I hope it will fix the issue if not I will have to try uninstalling and reinstalling iTunes. What software are you using to copy the DVD I wonder if it is the software we are using to get the DVD to the Mac.

What would happen if i used the wrong voltage power cord on my g4

What would happen if I used a higher voltage power cord on my powerbook G4.

It is not the cord that determines what the voltage is, but what electrical supply it is connected to.

IMac powered off while in use and won't power up, surge protected

iMac DV suddenly lost power while in use and will not power up. I've played with the power cord and reset button etc. but it's as thopugh it died of old age. Any ideas? Could it's internal battery cause this ? Where is it?
Is there a way that I can download from the hard drive without power?

Before you trash the Imac, I would get a new internal battery and try that and if that doesn't work I would try to get a new power supply, that sounds like the problem.
Also if you have another mac you can take the hard drive out of the dead Imac and put it into the other mac and get your important files off of it. HTH,Aaron

Is this power supply (A1185 10.8 V, 55Wh) compatible with New White 60W 16.5V 3.65A Laptop AC Adapter Supply Magsafe Power Charger For Apple Macbook pro A1184 A1185

Is this power supply (A1185 10.8 V, 55Wh) compatible with New White 60W 16.5V 3.65A Laptop AC Adapter Supply Magsafe Power Charger For Apple Macbook pro A1184 A1185

All of the A1181 polycarbonate MacBooks use the A1184 60W MagSafe power supply/charger and the A1185 battery. These are the Apple part numbers. Other manufacturers make equivalent replacement products, but the quality may not be acceptable.

How to use Logical database in function module?

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but how to use Logical database in function module ? Logical database PNP always show screen.in function (RFC) code , it is a matter.

You cannot attach the LDB to the main program of the function group.
- So you may [SUBMIT|https://www.sdn.sap.com/irj/sdn/advancedsearch?cat=sdn_all&query=submit&adv=false&sortby=cm_rnd_rankvalue] a report which use the LDB and get back the data (export/import), by default in the syntax of SUBMIT the selection-screen will not be displayed
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Regards

Using Apple World Travel Power Adapter with Airport Extreme

Hi, I was wondering if anyone knows if you can use Apples World Travel power adapters they sell for Powerbooks and ipods on an airport express. I'm looking to use it in Switzerland.
Thanks

1) use some sort of USB to Ethernet converter to plug the USB device into the AE
A "normal" USB-to-Ethernet adapter/converter merely makes the computer network capable. Useful if an Ethernet port is not provided originally. This is not what you want in this case. Instead, if you wish to connect an existing Wi-Fi base station (router), you should look for a special adapter (maybe something like this) with an Ethernet output and support for the very USB mobile broadband modem that you are using.
An alternative solution could be a dedicated mobile broadband router (with support for said USB modem), where you choose to or not choose to use its Wi-Fi capabilities.
Jan

Using DC supply to power module

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