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howtos:hardware:hardware_diagnostics [2014/06/21 17:31 (UTC)]
metaschima [Solutions] modified and added to mouse section
howtos:hardware:hardware_diagnostics [2014/07/06 00:57 (UTC)]
metaschima [Solutions] Added warning about replacing CMOS battery
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 === CMOS battery === === CMOS battery ===
 Replace the battery carefully using the special tab. Do **NOT** pry it off using a screwdriver because then it will break and it won't go back in. Replace the battery carefully using the special tab. Do **NOT** pry it off using a screwdriver because then it will break and it won't go back in.
 +<note important>​
 +Replacing the CMOS battery will reset your BIOS/UEFI settings, so be prepared for this.
 +</​note>​
 === HDD === === HDD ===
 You should first get your important data off of it. If you feel it is failing fast, use ddrescue to image the drive to another drive. Once you have the image, be it complete or incomplete, you can use [[http://​www.cgsecurity.org/​wiki/​TestDisk|Testdisk]] and/or [[http://​foremost.sourceforge.net/​|foremost]] to carve data off the image. The data will not have the same file name it used to, but at least you will get the data. You can find all these utilites and more on the [[http://​www.sysresccd.org/​SystemRescueCd_Homepage|SystemRescueCD]]. Now just replace the drive. You should first get your important data off of it. If you feel it is failing fast, use ddrescue to image the drive to another drive. Once you have the image, be it complete or incomplete, you can use [[http://​www.cgsecurity.org/​wiki/​TestDisk|Testdisk]] and/or [[http://​foremost.sourceforge.net/​|foremost]] to carve data off the image. The data will not have the same file name it used to, but at least you will get the data. You can find all these utilites and more on the [[http://​www.sysresccd.org/​SystemRescueCd_Homepage|SystemRescueCD]]. Now just replace the drive.
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 Replace the drive. Replace the drive.
 === Mouse === === Mouse ===
-Replacing the mouse is the definitive solution. However, some fixes may help temporarily ​and to delay the inevitable.  +Replacing the mouse is the definitive solution. However, some fixes may help temporarily.  
-  * For click-related problems, opening the mouse and investigating the cause of the problem is the first step. On most mice, there are 4 screws ​under the stick-on slippery pads that hold the upper and lower mouse parts together. It may be that the small plastic switch inside the mouse has worn down with repetitive use. Correcting this issue may be as simple as adding something to raise the height of the switch. One possibility is adding a small piece of duct tape over the switch to raise its height and improve its connection to the mouse button. It may also be that the plastic button arch has fatigued over time and doesn'​t provide enough resistance to prevent inadvertent activation of the switch. A possible fix for this is adding a plastic piece under the plastic button arch to improve its resistance. Depending on the mouse, either gluing a piece of old cut credit card under the plastic button arch or inserting the credit card piece with a piece of foam sandwiched underneath into the pocket under the plastic button arch may work.+  * For click-related problems, opening the mouse and investigating the cause of the problem is the first step. On most mice, there are 4 screws that hold the upper and lower mouse parts together ​and are located underneath stick-on slippery padsNote that after removing the stick-on pads they may be difficult or impossible to replace, so only open the mouse if the problem is truly bothersome or if you have extra stick-on pads provided with some mice.  
 +    * It may be that the small plastic switch inside the mouse has worn down with repetitive use. Correcting this issue may be as simple as adding something to raise the height of the switch. One possibility is adding a small piece of duct tape over the switch to raise its height and improve its connection to the mouse button. ​ 
 +    * It may also be that the plastic button arch has fatigued over time and doesn'​t provide enough resistance to prevent inadvertent activation of the switch. A possible fix for this is adding a plastic piece under the plastic button arch to improve its resistance. Depending on the mouse, either gluing a piece of old cut credit card under the plastic button arch or inserting the credit card piece with a piece of foam sandwiched underneath into the pocket under the plastic button arch may work.
   * For wandering / jumping pointer problems, cleaning the optical / laser window on the underside of the mouse with alcohol and a q-tip may help. If it is a wireless mouse consider infrared or microwave interference depending on the wireless mouse type. Removing or isolating sources of interference or distancing oneself from the sources may help. Wireless mouse manuals recommend placing the base station away from electronic devices or other sources of electromagnetic interference.   * For wandering / jumping pointer problems, cleaning the optical / laser window on the underside of the mouse with alcohol and a q-tip may help. If it is a wireless mouse consider infrared or microwave interference depending on the wireless mouse type. Removing or isolating sources of interference or distancing oneself from the sources may help. Wireless mouse manuals recommend placing the base station away from electronic devices or other sources of electromagnetic interference.
   * For acceleration issues one can try [[https://​wiki.archlinux.org/​index.php/​Mouse_acceleration|adjusting acceleration settings]]. However, in some cases the acceleration issues are intermittent,​ and may be driver issues that are much harder to solve. Trying different driver and software versions may help, or one can try to contact the developers of the drivers / software.   * For acceleration issues one can try [[https://​wiki.archlinux.org/​index.php/​Mouse_acceleration|adjusting acceleration settings]]. However, in some cases the acceleration issues are intermittent,​ and may be driver issues that are much harder to solve. Trying different driver and software versions may help, or one can try to contact the developers of the drivers / software.

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