Guides I've Contributed To


  • Answer to: I did not change the hard drive, no post tone, BUT I get the white li

    If the logic board is burnt out then you will need to replace it with the same model. Sadly, the DVD you have is not intended for use in this iMac and won't have the needed drivers for your system. As I stated at the beginning you will likely end up putting a lot of effort and money into this system to bring it back to life, I don't think its worth it. Sorry ;-{
  • Answer to: HDMI inputs quit working after power outage

    Did you have your TV and the other components plugged into a surge suppressor strip or UPS? Do you have a ground connection for the cable at the cables entry point with good mechanical grounding? It sounds like your TV and/or the HDMI connected components got zapped. Not much one can do here sorry to say. The issue is costs you can get a bigger and better LCD (LED backlit) TV now for less than what you paid for your plasma than the cost of repairing your plasma. You could checkout what your home owners/renters insurance covers. You maybe able to get some money to cover some of the cost of the replacement unit. I would strongly recommend getting a good quality surge suppressor or better yet a UPS (My big TV and the other gear I have with it are all plugged into UPS). In addition see about getting a whole house surge suppressor (do both) and check your ground services. It could save you next time.
  • Answer to: Power button and other keys won't respond

    Can you try plugging in an external USB keyboard? Does it work correctly? If it does I would suspect the Analog to Digital (A/D) logic within the keyboard is messed up. Which would mean replacing the keyboard (top case assembly). As you would need to completely treat the system down the issue is which makes better sense here trying to repair the keyboard or just replacing it. Given the amount of work and the likelihood of not fixing the keyboard I would just replace the complete top case.
  • Answer to: Possible to buy upper case without the keyboard or trackpad?

    Sorry, no. Besides, you don't want to risk damaging the keyboard parts that are mounted to the case trying to transfer them over.
  • Answer to: Is the graphics card soldered in in this model?

    It's a bit of work. Here's the IFIXIT guide iMac Intel 21.5" EMC 2389 GPU Card Replacement. Be aware you must use the correct version of the board as the size is custom to Apple as well as the card drivers.
  • Answer to: Adapter for MBA 13" Mid 2013 PCIe drive to SATA or USB?

    I've faced the same problem! Sadly, there is no options right now. There are no external drive cases for the newer PCIe drives currently. What I do is use a second '13 Air popping the SSD into it and then putting it into Target Mode with a USB cable copy off what was needed.
  • Answer to: Converting I Pad 2 using a Blue Tooth 4

    Sorry no, there is no means via software to alter your Bluetooth services. And there is no economic way to alter it either by swapping out chips either. Time for a new iPad
  • Answer to: Hp designjet 800 does not recognize black cartridge in ink supply stat

    Is this a re-loaded cartridge? Many of HP printers access the cartridge ID and decrement the level but have no way to reset without altering the ID.
  • Answer to: HDD Not Detected In Disk Utility With Current RAM

    I think you created a second problem when you changed the RAM modules. As you stated the HD and your second HD still wouldn't show up under disk utilities. Given the symptom of the locking up I suspect your HD is failing. Do you have access to a second Mac system running the same version of OS-X and a FireWire cable? If you do I would put your troubled MacBook into Target mode and then connect it to your other Mac. Then try running Disk Utility on it that way. If you still can't see it you'll need to take the Hard Drive out of your system and mount it to an external case (FireWire besting best) or use a SATA to USB adapter cable. Then try your other Mac again. If you still can't access it that way its to far gone. Time for a new Hard Drive.
  • Answer to: Fan not working on second HD in iMac?

    Vito, There is a a dedicated fan for your main hard drive and also a fan for the optical drive. In both cases these fans are controlled via SMC services in your system. The SMC services are not accessible via MS windows but accessable via Apples OS-X. This gets into the API's and how they are accessed via the OS. If you give this application a try running under OS-X Temperature Gauge Pro you will see the fan & thermal sensors, unlike Speedfan which can't access the OS-X API's.


  • Apple USB SuperDrive Optical Drive Replacement

    <<Add the following>>

    Note: Here's a method to hack the OS-X configuration file for the SuperDrive to be used on the older iMac, MacBook, or MacBook Pro systems that the drive normally won't work with. Use with caution!

    open the file in a text editor or in terminal use nano you will see a key <key>Kernel Flags</key>

    under it add the following line


    reboot your Mac

  • This is SPAM !

  • Mac Mini Late 2012 Teardown

    Can you verify the data rate of the I/O is it SATA-3?

  • MacBook Pro Retina Display Teardown

    Step 15 - could be Braille U - B - A or the contractions Us - But - A

  • MacBook Pro 15" Retina Display Mid 2012 Teardown

    From the Apple specs sheet neither this new MacBook Pro or the new MacBook Air have digital outputs. Just looking at the connector in the disassembly photos it appears to be true - Sorry

  • MacBook Pro 15" Retina Display Mid 2012 Teardown

    R4F2113 is a Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2100 Series