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Is there an instructable for making a psu into a powerstrip???

I'm looking to make a psu into a 3 plug or more powerstrip.

Question by Raikou6    |  last reply

Boot disk error?

I recently built two computers with amd fx-4300 processors, geforce 650 ti video cards, generic 4Gb memory, generic power supplies and GIGABYTE 78LMT-S2P motherboards. I installed Ubuntu 12.04 on the systems and began installing various programs I needed. When I was done for the day I shut down the computers and turned off the powerstrip. The next day when I went to start them up, I was getting a boot error. After inserting an Ubuntu live disk into the computer, I checked the hard drive, which opened up no problem and still contained all of the files from the os. The rule out the software I was installing, I reinstalled Linux on both computers, and rebooted, after which point there seemed to be no problem, until I turned off the powerstrip again and I got another boot error when I went to turn them back on. Thinking it might be the disk I was using to install linux, I burned another disk with the same os and tried that, and the problem persisted. The fact that it happened on both systems leads me to beleive that it isnt a hardware defect, but possibly and incompatibility between hardware parts, or a bios issue. Has anyone else ever encountered a situation like this where the os doesn't load after the power supply is switched on and off? If so, what causes it and what can I do to fix it? Edit: It seems that it actually fails to boot every time it is shut down, though it works fine when it is only rebooted. Edit#2: Interestingly enough, if i run a hard disk check from the live dvd, and then reboot with the disk in, it loads from the hard drive, but then after the next shutdown, it does the same thing Edit#3: After doing a disk check and it says no errors, it says to click a button to reboot. When I do this it gives me this message after it reboots, "Errors were found while checking the disk drive for /. Press F to attempt to fix the errors, I to ignore, S to skip mounting, or M for manual recovery" on the one computer I hit f to automatically fix it, which isn't a permanent fix because the drive coninues to have problems, but will boot after i hit f, and then not after i shutdown again. On the other computer, I hit m, and it gave me the message, "Root filesystem check failed. A maintanence shell will now be started. CONTROL-D will terminate this shell and reboot the system." The shell is from the hard drive, not the cd.

Question by danielemur    |  last reply

How do you make a VGA-hooked LCD display 1:1?

I have a nice big LCD monitor I want to use for my projector, but since it is currently hooked up via VGA cabling, I'm not sure if I can make it only use a part of the LCD for display. I have tried PowerStrip, but I can't seem to get it to take my custom resolutions properly. I want it to display 1024x768 on a 1280x1024 screen, but my monitor always says out of range!

Question by willrandship    |  last reply

Ribon cable colors

Hi all,   I just read the "Web controlled powerstrip" by rleddington. A great build and it brought something to mind; Most everybody knows the resistor color code. The rainbow ribbon cables follow that same code. A lot of folks are unaware of this. There are ten colors and if you have more than ten wires, the color pattern repeats. If you know resistor code, this makes it a lot less confusing when wiring up a lot of circuits. If you follow the pins number/color on one end, the other end goes real easy without having to look up or follow a chart you made.   Hope this helps! Thanks again for all the great projects.

Topic by ssiegel    |  last reply

That didn't just happen, did my oscilloscope die!?!? How??? Repairable????

I went to my workbench today to discover that my BK Precision 30MHz analog scope has stopped working. Symptoms: ❶  Still shows a trace ❷  The trace does draw across the screen*  ❸  The horizontal time base seems to work ❹  10x horizontal magnification seems to work ❻  XY mode only draws in the X direction ❼  Waveforms do not show up, for either chA or chB ❽  Triggering seems to work (it causes the trace to draw more/less frequently. No vertical deflection)  ❾   Vertical controls for both channels have stopped working ❿   Dual trace shows only one trace ⓫   I have not been able to do anything to make the trace move up and down, vertical deflection is definitely shot. ⓬   * When changing the timebase, I noticed that the length of the trace horizontally gets shorter, and when a signal is present, or the vertical position for the appropriate channel is twiddled, it becomes the right length, within certain ranges. ⓭    When I was reaching for a powerstrip to turn off power to the lab the previous night, I heard a loud buzz, similar to that of the degaussing on a old computer monitor, but louder. no sparks or anything were visible as I recall. scared the crap outta-me, and I could not figure out what had happened. First thought was that maybe somewhere there was a live mains exposed somewhere that had shorted to ground or neutral. That was quickly dismissed since nothing was exposed like that, and also it would have popped the circuit breaker, and instead would have sounded like a firecracker. This sounded more like a small transformer failing. Also the same day, I have been messing with a tesla coil circuit (my beefed up slayer exciter) and the probes were sitting here by not connected picking up interference. They were in 10X mode, I do not remember the volts per division, however. I do recall a trace being shown on the display the previous day. With these symptoms, I think the issue has to do with the vertical control on the CRT, and perhaps another, separate issue with the horizontal time base control, or possibly triggering. I think I might do a teardown on it to see if there is anything obvious that has failed, such as a charred coil. Then I will need to figure out what had caused the issue. It is obviously something gone horribly, horribly wrong with vertical deflection or something of the like. I will have a look at the schematic and see what I can learn about the operation of the scope. I am glad I do have the user manual and schematics, so it should be straightforward, it is a nearly 100% BJT design. The scope was used and old, and lacked a lot of features, such as cursors and frequincy counters. Perhaps it is time for a digital upgrade anyway...;_rd_s=desktop-1&pf;_rd_r=1VEC8M45MB2T9REXCR7N&pf;_rd_t=36701&pf;_rd_p=2079475242&pf;_rd_i=desktop

Question by -max-    |  last reply