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Re: HP 1730 Monitor
It depends on your graphics card driver. If you are using windows xp, go to "control panel", "Display", select the "settings" tab, and click "advanced".
You should get a properties page, one of the tabs should be "Rotation" - change to what you want, then apply changes.
If you are unsure why the screen changed in the first place, check on the "rotation" page for a description of the hotkeys - most likely there is a hotkey set to rotate your desktop which has been inadvertently pressed.
If not windows XP, then the procedure is most likely similar.
Hope this helps, please ask again if you need more info :)
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While there isn't a "fuse" to blow, there are several things that could prevent your system from booting after making hardware change. However, there is a distinct difference between not booting and not powering on, and for further troubleshooting we'd need to know which is the problem. In the mean time, here are some things to consider:
1. An incredibly small amount of static electricity can short your motherboard and prevent the system from booting at all. Whenever you do any time of hardware update or configuration change, always where an electrostatic discharge wristband to prevent damage to your system.
2. If you somehow unseated the processor from the motherboard during your upgrade, then the processor would lose some of its ability to dissipate heat, which would cause an automatic shutdown.
3. It is possible that you loosened a wire/jumper/plug that was integral to the boot system of your computer.
I have similar problem with my HP 5000nx laptop, and I was told that the problem is with "flat cable" so that it can be replaced but it might be expensive. So use it until it works properly at some posotion. I am doing it for three years.
There are multiple circuits for this model. I suspect your model is
PE1237. If so this model frequently has bad solder connections at the
AC socket. Also capacitor 2119 or capacitors 2041 & 2031 can cause
no power up. They normally are bulging if bad. If your model is PE1238 (BenQ), you may see bulging capacitors in the power supply.(1000uf/25v) Monitor Mike
There are multiple circuits for this model. I suspect your model is PE1237. If so this model frequently has bad solder connections at the AC socket. Also capacitor 2119 or capacitors 2041 & 2031 can cause no power up. They normally are bulging if bad. If your model is PE1238 (BenQ), you may see bulging capacitors in the power supply.(1000uf/25v) Monitor Mike
If you are sure the left monitor?s power is not the source of the problem it does sound like a shielding or excessive signal loss in a device/cable.
If it?s always the left monitor I would try unplugging the video cable that goes from the left monitor and plug it into the right monitor; do the same with the other monitor. If the problem moves to the right monitor then that eliminates the monitors and we move on. If the problem goes away then probably one monitor had more signal degradation than the other. If the problem stays then the monitor is the source of the problem.
If the problem followed the cable then I would exchange the cables that run from the switch to the monitors; if nothing changes exchange the cables that run from the switch to the PCs. If exchanging any of these cables results in the problem moving then you have a damaged cable or a bad connection.
If the problem is still on the left monitor unplug the cables from the left PC that run from it to the switch and plug them into the right PC; do the same to the right PC. If the problem moves then you might have a damaged switch OR perhaps the video card output on one of the PCs is weaker than the other.
All cables and devices weaken the video signal to some degree but the amounts can differ wildly. Over the years I?ve had this problem caused by cables, switchboxes, video cards, radio transmitters, bent connector pins, poor connections, excessive cable lengths, monitors and accumulative signal loss from several devices. The last is the hardest to diagnose.
Good luck and let us know what happens.