Power of heat physics

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• a pavilion elite h8-1040 are home to a nvidia gtx 580 or 590? power and heat are my concern. THX

  A pavilion elite h8-1040 are home to a nvidia gtx 580 or 590? power and heat are my concern. THX

  Hello

  Some models of HP PC are configurable with a NVIDIA GTX 580 requiring optional power of 600 watts.

• The Acer M3641 will have a standard ATX power supply? My power supply is dead.

  My M3641 does not start and it seems to be dead while it is turned off.  It was plugged and it started sparking and make loud pop.  I see no signs of a short circuit or damage the inside of the case, but I did not remove or open the power supply.  I think to replace, but I can't find all the information on the sites of Acer which would specify if a standard ATX PSU would work or if there are installation instructions I need.  Does anyone out there know about this?  Thank you.

  OK, no answer here yet, so I had to make a decision.  I bought a ThermalTake TR2 430W ATX PSU (also shown on their Web site as W0070) and I replaced the power supply in my M3641.  It cost me $25 (after discount) at a local TigerDirect store (CompUSA was.)  I was shocked (no pun intended) the degree of simplicity to install.  I was also shocked that he seems to have worked immediately.

  First I disconnected the power of the unit and press and hold the power on button on the front of the PC (according to the instructions of Acer) to release any remaining electrical load (or so they claim).  I removed the 4 screws of the old PSU and slid the box out of the chassis Assembly while retaining all connected cables.  I found the best direction for the new PSU (fan stood in the same place, so the new power supply heat can be evacuated in the chassis, but the chassis is open enough and if the fan is drawing inside the PSU the air comes from the back of the unit (reasonably fresh air.)  It's the only way it would fit the attachment power cord located on the side of the draw.  The old power supply had the fan and the power cord on the same side attachment to the rear of the chassis).  Note that it is possible that the fan is fan in the power supply and the back.  I do not know.  In any case, I had no choice about the direction.

  I unplugged the old PSU connector and replaced it by plugging the connector corresponding since the new power supply.  I did step by step, a connector at the same time, check first to make sure I knew exactly where the connector has been set and what was the orientation.  In each case, I checked to make sure that the paired wire color coding.  In some cases, there was an extra wire on the new connector, but all the others were corresponding to the color and orientation.  I had a square connection 4 pins which does not correspond to the form of any connector again, but the new PSU was a rectangle connector 8 this divide into two 4 pin and I joined an of these.  The main connector has been 24 pins and the new PSU gave me an option of 20 or 24 pins.  Once again, no problem.  I noticed that one of the connections of the old PSU was actually two connections separated on a single cable, so I simply repeated with the new power supply, which included two cables multiconnector just for this purpose.  I used one of those for the two connections (hard disk, I think) and the other for a single connection, probably for the optical drive.

  The old power supply was now completely detached.

  After checking that all the screws and connectors have been secured, screw the plate chassis and to make sure the PC is properly delivered together, I plugged it in the end of the power cable supplied with the new power supply with the power off PC switch.  Then I plugged the other end of the power cable on my PS backup APC no explosion yet, so I went the new PC button power on / off to we.  Still no spark, so I pressed the button on the front of the PC and voila, it lights up and started.  Everything seems fine.  It seems to work normally.  If I encounter problems such as overheating, I will update this post.

• adapter power supply for laptop DV6 1230us

  Anyone know what the output current should be for a DV6 1230us laptop power adapter?

  The original power supply has failed and has been eliminated - now, we tried two adapters purchased off ebay, and both overheated.  They were the two 60w and spec'd 3.5 released.  They were the two brands not HP.

  The specifications are not available on the HP Web site, and it seems that the good spare HP P/N 693711-001.

  We would like to undestand if power supply is incorrect and the origin of the problem, or if there is something wrong with the laptop (which continues to work very well...)

  It should be at least 65 Watts (18.5V x 3. 5), but you can use a 90w like this template:

  http://www.eBay.com/ITM/original-OEM-genuine-HP-Compaq-laptop-power-cord-adapter-608428-001-609940-001-/181304904317

  The models v and 19v 18.5 seem interchangeable, as long as it's the big gun with the centering on the inside PIN. An adapter low power will heat up.

• Physical and virtual - how to make a like comparison?

  Hello

  A user uses a Windows 2008 64 bit VM with 4 virtual processors and 4 GB of RAM to run some software testing stress.  The software will be finally deployed on a physical Windows 2008 64 bit server with 2 Quad Core processors @ 2.00 GHz with 4 GB of RAM.

  The performance of the physical machine is fairly easy to measure, but how to tell the user how much it makes on the VM total processing power?

  I understand there are a variety of factors, such as the load on the cluster, the host specifications, etc. etc.  Howerver I would like to be able to give the user an approximate idea of how the VM is compared to its physical counterpart of processing power.

  Ideally, I would like to prove or disprove that the virtual or the machine more/less/more or less equal to the processing power the machine physics.

  I guess that there must be a variety of ways to do it, but I don't know where to start.  Any ideas?

  Thank you.

  Take a look at VMmark - http://www.vmware.com/products/vmmark/ for this type of test.

  Most of the companies I worked wih begin in general with "low hanging fruits" physical machines that have little to low load and as they reach a level of comfort with the VMware environment and begin to look at the most critical applications - these companies now are virtualization of exchange servers, SQL servers and other critical high - load the key is gaining acceptance and architecture then the right solution.

• Qosmio G30 - 175 - need a good market 17 inch screen

  4 years and still going strong I thought? Power over heating (replaced) next VGA chip problem IE lead solder used over time develops and works only in standard VGA, had this repaired at a cost of £165.00 (worked well for 3 works). Display 17 inch now has 4 lines on extreme right what a bummer.

  HELP ANY ONE GOT A 17 INCH CHEAP CHEAP SCREEN.

  email me [email protected]

  My other Qosmio F10 15.4 now 7 years old and had a use, GREAT working never had a problem.

  Hey Buddy,

  I'm sorry to hear that, but it seems that it was just bad luck. These things can happen still independent how old your notebook is and how many times you used it. Laptop is an electric element, so no one can say how long the parts works properly.

  In any case, now, it is important you find a screen new and cheap. At first I contact an authorized service provider and ask the guy how much it would cost. They can order the parts for you.

  If you are familiar with disassembly laptop second hand up as eBay would be also interesting for you. If you find a second hand display, you can replace it yourself, second hand parts are generally much cheaper and it would be worth a try.

  But maybe someone else here is a screen for you and make you an offer by e-mail. I hope so. ;)

• Re: Satellite U940 guard itself light and electric drain

  I love the quick start of this laptop and my understanding always was that the power button (or physically closing computer) is all I have to do to put to sleep.

  I know that sleeping computers can always use a bit of battery, but more often I think otherwise, that the computer is not REALLY asleep. The screen may be dark, but the LEDs near the touchpad will turn upward and slight pressure of the button (or any key) immediately shows that he was not really sleep.

  I worry because sometimes it seems that it must be for hours - at the bottom of the computer will be hot. I tried to unplug the unit to see if it will make a difference, but sometimes it just means that he will be drained the battery.

  Any tips? Much appreciated!

  Generally speaking, you're right. By default, after closing the laptop lid must be on standby mode.
  In any case, check please supply for some power plan options and make sure the option when I close the lid is set to sleep option.

  Also test option sleep when you click Power.

• funny sounds

  I have a new HP Desktop Envy 700-215 X TD running Windows 7. When I first start the computer, I hear a noise of rotation for about 5 minutes and then the noise stops. I never had this problem on previous HP desktop computers. Is this normal or a manufacturing problem

  When you start your PC or open applications, the PC is to use more power. More power, more heat. More heat means more rotation of the fan.  It's a good thing. Heat build-up can damage the components. The PCs are designed to get rid of the heat as soon as it starts.

  It is more likely that you are a fan of hearing than the hard drive.  In addition, if you don't hear the hard drive, this does not mean that it is losing the balance. Some readers to make more noise than others, but this does not also mean that there is a problem. If the noise is constant (or grinding or knocking), then I'd be more interested.

• The PID control

  Hello world.

  I wrote a program of temperature control in labview and used the PID Toolkit for it.

  The entrance to the PID is the measured temperature and the output is a PWM signal fed to a relay that turns heater on or off.

  The control works but I want the temperature to be stable within a range of + - 2%.

  Currently, the temperature varies more than that.

  IAM sure, this is the setting of the PID.

  Because I have not worked with regulators PID Iam not exactly how to tune my system.

  The best way I found is to zero I and D and make the system oscillate with P.

  The only problem is that the system of temperature is so slow that it takes quite a long time to reach the set point which in turn would mean a lot of hours of tests only.

  Now Iam just wondering if there is a faster way to set the PID controller?

  Thanks in advance,

  Best regards

  Michael

  I've used this method several times with slow heating appliances. It can take a long time to reach a stable temperature, but at least do not monitor constantly as he approaches this value.

  In figure 3.4, Yes, the Min value is the initial value that is stable. It is OK to start an initial PWM output of 0, which speeds up the process, if your radiator is already at a steady temperature (the temperature in the room).

  In general, the difference between the output of the first and the last values, better will be your control (you will get best results of going from 0 to more than 50% to 5%), but it will take more time to settle to a new value and of course you must ensure that you do not exceed the capabilities of your system. It's a good idea to have a separate alarm system in place that can cut power to heater if you exceed a temperature, especially if you plan to walk away from it until it stabilizes.

  To a fixed cycle, the system will not continue to heat up indefinitely unless you have a perfect insulation without heat loss - but, as I mentioned above, do not choose a value that will not cause the system to overheat.

• Industrial communications for CANopen - interface create error

  Hello

  I am trying to run a few basic examples, I found with the finder example in communication industrial directory - NOR - for CANopen-> cRio-> FPGA bitfiles-> CANopen_cRio_heartbeat.vi.

  But the block 'create an Interface' gives me the error 2147136667.

  I work with with module NI 9881 cRio. The module is connected to the robot from Festo.

  You please any idea what can cause this error?

  The text of says error:

  Possible reasons:

  You try to start an interface that is missing the bus for the transceiver power. Some physical layers on the material OR CANopen are fed internally, but others require an external power supply so that the port to operate. This error occurs when starting an interface on the equipment that requires an external power supply when no power is detected. Power supply right to your transceiver. Refer to the material of the NOR-Industrial communication CANopen Book for CANopen help for more information.

  See you soon

  Ivo

  Hello T.t,

  The 9881 must be fed outdoors. You can do with a CAN of junction box or with a Câble CAN.

  Concerning

• XW4400 workstation: decommissioning of BIOS

  Just updated the BIOS to V02.07 (later) and now the CPU fan will NOT leave until a quiet speed.  It was NOT like this before the upgrade and can not now seen to locate the BIOS version v01.03 which was originally it (no, I don't have a copy until I upgraded).  I tried the video card and even took off the CPU fan and applied it again the dough... NO LUCK.

  Anyone know where I can get the previos V01.03 version?

  I saw v. 1.02, but no 1.07.

  Have you checked in the BIOS in the Power tab-> heat for the option to change the mode Fan Idle?

• PID controller compatible LabView

  Hi all

  We have built an oven of automated test. It was decided that it is cheaper and more convenient to use a pre built the PID controller, however

  our task is to set the temperature of the oven by using LabView code, so the PID should communicate with the computer.

  I would be really grateful if you could give me a little advice if these controllers exist and where they are or it could be easier to use the box of DAQ + OR PID

  box tools + with external power supply + heating element power transistor.

  PS just to note, temperature range is not very high (20-200 ° C)

  All the best

  Alexander

  Hi Alexander,.

  When you talk about PID controller, there are two options:

  1 software based controller PID (you can develop using the LabVIEW PID toolkit)

  2. regulator based material PID... If you choose to have a PID of hardware in service, you must ensure that it can be used with LabVIEW, I know that what is your concern...!

  For most of these PID regulators (hardware) are an instrument of series (RS-232, RS-485 or MODBUS based) and which can be easily integrated with LabVIEW... no tool is necessary, but all you need is VISA functions or MODBUS library.

• updated duty cycle in PWM/PID temperature control

  Hi fellow users of Labview,.

  I control the temperature in a box by reading the temperature (voltage) of a PT100 element and output pulses PWM with PCI 6221 counter to close the circuit of a relay to solid state to power my heating unit.

  Using PID (not quite yet set in the code below), I expect the cycle also adapt according to the proximity we are at the point (i.e. it would be pulse refine put it to not be 50% when sound near the set point, but rather be like 10% so it is not exceeded). Right now my code does nothing at the time when the process variable exceeds the set value (I have the operating factor set to 1E-5 in this case, mainly off the coast, because if I don't do this, the counter always pulse outputs...)

  How to integrate the update of the PWM pulses in my code?

  Thank you!

  HessenMob

  I think I solved the problem.

  As a new person on these forums, I didn't know how to remove my post...

  An updated version is attached below!

  Any thoughts on how to tune the K_p, K_i, K_d settings?

  Thank you

  HessenMob

• Comparison of portable HP G6

  Hey guys,.

  I am currently looking to buy a laptop and I'm undecided between two laptops: HP Pavilion G6 2395sa and 2276sa G6. The first is AMD powered by a dual processor core A6 4400 M with an AMD Radeon HD 7520 G graphics card. The other is Intel powered by an Intel Core i3 3110M processor and graphics Intel HD Graphics 4000 card. I went to several stores around me which is better, and they said that the 2395sa is best for general use and graphic wise. But after doing some research myself, I believe that the 2276sa is faster with respect to the processor. That's why I wanted another opinion, laptop that is best with regard to global for everyday use material and in terms of games (such as simple games like the simulators/TF2, not heavy PC games).

  Comments are welcome.

  Thanks, Wailun

  The graphics are a little louder on the model of AMD, but not as much as you think. The HD4000 Intel isn't too bad for something other than power games and the Radeon HD7520G will still disappoint, in this arena, just a little less. Overall I could get into trouble, but I tend to steer people away from AMD laptops. AMD has upped their game a bit recently, but in terms of power and heat, and just a power of zeros and each management Intel i-series are the best thing out there right now. That said, the AMD models offer an interesting value proposition, but for an extra $50-150, I'll take the Intel.

• HP Slimline 410-100nv: hi im going to buy a new computer in a store that its hp and I have a few questions

  Hi im going to buy a computer soon its called "HP Slimline 410-100nv" and it came with an intel hd 4400 can I install a videocard 2 x 16 which is the GT Gigabyte 730 1 GB DRR3 and my old power supply 450W? Please confirm before I change thanks HP components

  Hello

  ATX power supplies are physically too big for a slimline PC.

  .