PC power supplies require a minimal load to source output voltages inside the specification range. Some will check if a load is connected and switch off outputs with no load. So each of the 3.3, 5, and 12 V rails should be connected to some kind of load.
For the 5 and 12 V rails I would use an old drive (floppy, CD/DVD, or hard disk). The 3.3 V rail can be connected to a load resistor (e.g. 3.3 Ohm, 5 Watt). Finally you must connect the Power On signal (Pin 16/14 for ATX-24/-20) to GND.
It might be necessary to connect an additional load resistor to the 12 V rail because the load may be not enough when the motor of a conncted drive is not running.
Additional information can be found at the Wikipedia[^] page (see also the links at the bottom).
I've always just used an ink-jet all-in-one and called it good. I used to buy HP, but the materials seem flimsy now, so my current device is from Brother. There are some things that just aren't worth spending a lot of time thinking about. Go to a store that has a bunch on display and choose one.
Unless you foresee a change in line technology, I'd go for a combination. One less box to worry about. I have had a couple of ADSL modem + 4 port router + wifi boxes, and they do just fine. 3 wired ports in use and about 6 wireless devices. Whatever you get, make sure you lock down the admin access.
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
Go for the two in one option if oyu have a choice.
I don't have a choice as my ISP provides me with a fibre router(fibre cable in and one cat5 out) - I run a router/gateway off that.
My main computers then run off the gateway via Cat5 and I also have the wireless, on the gateway, switched on so that I can use mobile devices around the flat.
“That which can be asserted without evidence, can be dismissed without evidence.”
I look at the specs on various motherboards, and don't see anything about the number of monitors they will support.
A low-end motherboard will usually have onboard video capable of supporting one monitor. However, higher level motherboards will not have onboard video. For them, you must purchase and install one or more graphics cards.
The difficult we do right away...
...the impossible takes slightly longer.
Motherboards normally only support 1 or 2 monitors, one on VGA and the other on some digital. If you're going to run 3 monitors, seriously, forget on-board video. It usually sucks ass. You're going to get a separate video card.
You start with which CPU you're going to run, then you go to the motherboard and RAM. Which one you get depends on what you're going to do with the thing and whether or not you're going to tweak the chipset to eek out every bit of speed you can get.
On my rig, I have an Asus P8-P67 motherboad and run dual GTX770's, and (3) 24" monitors.
I am no expert in these things. But I do know that I can read such properties from the Networking interface, or from the Device manager (if you're having Windows). Otherwise, you can always check for the Mac address for your own system (Read the manual?)
The sh*t I complain about
It's like there ain't a cloud in the sky and it's raining out - Eminem
~! Firewall !~
In my in-laws house they have plenty of Windows computers and one iMac (my mother in-law).
They have all the computers, consoles, TV's and a myriad of devices connected through powerline adapters.
The iMac is connected trough WIFI.
When accessing a specific web site (one of the most visited sites in Spain and of course the starting site of the safari configuration in my in-law iMac) some times it appears the following message:
"BAD GATEWAY, The proxy server received an invalid response from an upstream server"
Of course no proxy server is configured neither a proxy is there...
Wifi signal oscillates from maximum to almost nothing, and seeing that I connected another powerline to the iMac, automatically the computer took a set of correct IP configuration values.
Even with the powerline the message still appears...
Being that one the first time I touched an iMac or an iSomething... could any of you give me a clue to follow?
I have an USB audio device which has 2ch input and 2ch output, which is using MSFT inbox driver. So it basically can accept stereo audio from application per their format handshake.
Now I plan to add a APO which should receive 6ch or 8ch audio stream, instead of 2ch any more, while still output the processed 2ch audio to the device. So I must tell application that it now needs to send 6ch or 8ch stream to APO. I am not sure if this is feasible in MSFT APO architecture. Can anyone know this help provide some comments? Thanks.
I've just arrived from a customer place, after making some nice improvements to the software of one machine.
Today it's my first day again into the office and my intention was to get all the modifications into our repository.
the laptop simply don't want to receive power.
It is a HP EliteBook 8530p (Yes, I know I should trash it and get a brand new one) but what I can see when I try to start it is that the power led blinks 6 times.
I've tried to start it up with and without the dead battery connected...
Apart of unplugging the hdd and put it to the desktop computer, what would you do to try to start it again?
What about a different power adapter? Maybe it is not getting power at all - the power adapter is faulty and is not supplying power to the laptop (or supplying reduced power - causing the 6 blinks). This has happened to me once.
The reduced power from the adapter is not enough to 'crank it up', maybe
I am good with HP's not working because i have had three of them go wrong because the fans break, glog up, go wrong.
We are being taken for fools these days and the CMOS programs no longer warn about memory being bust or something else being wrong with the hardware like they once did and they just want you to throw it in the bin and to buy a new one.
Trying to open up a laptop to clean/replace something that should be a servicable part is no longer an option because these machines are not build anymore to be opened up by users, trims fall off, wire strips won't push back in, big trouble
If it is the fan then take it to the kitchen, warm up a kitchen knife on the gas ring and cut a hole out above the fan to see whats stopping it, try to fix it.
Now if the fan is past reapair then you can break out the plastic fan blades and glue an external UBB fan over the hole or option 2 is to make a bigger hole to replace the fan unit without trying to splt the machine in two.
I switched over to Dell, not the best move since my Alienware needed a new mothboard on month one and a screen on month ten (These are not cheap) and you need a srewdriver to get at the battery.
Another new Dell also needed a motherboard on month 6
The best one is a Dell XPS with a screen res of 3200 X 1800 and these realy are nice machines but for the money the old HP's were not all that bad apart from the fans.
I just bought an HP Pavilion notebook, and not wanting Windows 8.1, I decided to install Windows 7. I used Tuxboot to make a bootable USB stick drive to run GParted, which allowed me to repartition to the hard drive in NTFS, from which I was able to install my old copy of Windows 7 Home Premium from another USB stick drive. I fully understand that I need to load in a bunch of drivers, and I downloaded them and put them on yet another USB stick drive. The key here is that the BIOS properly recognizes when a bootable stick drive is attached.
So I am all ready to run the driver EXE files, but I need to somehow get those files onto the hard drive. However, in Windows, the USB stick drive is not recognized! And of course, the wireless modem is not recognized as well, so I am stuck as there is no way to get those driver EXE files onto the hard drive! I tried using Tuxboot to run FreeDOS & Clonezilla, but I couldn't seem to get the job done (in FreeDOS, there only seemed to be the A: & C: drives, corresponding to the OS & stick drive, without there being a drive corresponding to the hard drive.)
I have entered this same question to the HP Support forum, but since I repartitioned the hard drive, they will probably tell me too bad, we will only support you with our buggy and INCREDIBLY CRAPPIFIED install of Windows 8.1. Of course, if anyone can give me pointers applicable to the HP system, that would be great - but I am looking here for advice on how to use FreeDOS or Clonezilla or whatever else to just get me to the point at which I can get the darned files from the USB stick drive onto the hard drive, after which I presume that those driver EXE files will do the trick.
It is generally a bad idea to transfer an installed copy of Windows to a different system. If you don't have a Windows installation DVD you can ask your friends if they have one and enter the license key of your old system (you are not allowed to use it on your old system anymore).
If you still want to go on with your procedure, you may boot from a Linux live CD/DVD or bootable USB stick. Then mount a partition of your hard drive writable. Finally you are able to copy data from an USB stick to that partition. When the live Linux recognises your network card, you can also download the drivers directly to the mounted partition.
This was a Windows 7 Home Premium distribution that was downloaded from a largely unknown Micro$oft webpage. I had a license on my old notebook and needed to do a complete reformat & reinstall, and did not have the OEM disc handy; I used the key from that OEM (which I fortuitously had e-mailed myself), and was eventually given a new key to stop the stupid messages. (I used that new key for this latest install.) The system using that hard drive has been discarded, although the hard drive for that has converted into an external drive via an HDD Box; it will no longer be used as a boot drive, and will be reformatted when the files from there have been properly offloaded.
This message has been also posted on Arduino site - Due forum.
I am using ATmel Studio ( 6.2 SP 2) ASF example to test program Arduino Due. [b]I do not want to use VisualMicro wrapper for Arduino IDE.[b][/b][/b]
The (only ONE) example compiles, won't download to Due port and then I get a cryptic error message about missing "connected tool".
Apparently the ASF examples require either hardware of software debugging "tool". The documentation really does not explain what this "tool" is nor how to add it to the Studio. There is an empty pull down box titled "Selected debugger / programmer" under Tool tab.
So far I am unable to post this to ATmel ARM forum, but I got some answers from ATmel AVR forum which I appreciate.
I also found old (2012 ) and now apparently abandoned site which shows running the same example without need for this mysterious "tool".
I am sure I am also missing the programming port assignment for ASF, but got one working for VisualMicro.
I would like to hear from someone who "<b>been there done that"</b>. Cheers Vaclav
Last Visit: 31-Dec-99 18:00 Last Update: 30-Jul-15 1:45