Drive Sony Vaio Motherboard Hm
Sony Vaio Motherboard Problems
The main goal of my repair is removing and replacing the failed hard drive which is mounted inside the case.While accessing the hard drive, I’ll explain how to remove some other main components.Before you start, make sure the laptop is turned off and battery removed.STEP 1.Both memory modules can be accessed on the bottom.Remove one screw securing the service cover. Remove the cover.STEP 2.Release both memory modules and pull them from slots.STEP 3.Remove three screws securing the DVD drive.Pull DVD drive to the right and remove it. STEP 4.Remove one screw securing the keyboard.STEP 5.There are four spring loaded latches securing the keyboard to the top cover.I pointed to latch locations with four arrows.STEP 6.In order to remove the keyboard you’ll have to release all four latches.Push on the latch with a sharp object. Excellent guide.IUsed it to open up my VGN-NR31J/S too reflow the GPU (GEFORCE 8400GT M).Unfortunately 2 wks down the line and GPU failed again. The CMOS battery is (in my case) bright green in color and a little smaller than two dimes (though thicker). This is NOT on the side shown in step 14.
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It’s on the bottom instead, on the other side from the two memory slots. So after step 17, keep working as mentioned by others, if you want to reset the bios. My bios was freezing (F2 would enter, but couldn’t move from screen to screen (Main, Advanced, Security, Boot, Exit)). I pulled out the disk after 17, and connected it to my mac using an INFOSAFE SAT2510BU2B from Startech.com, and ran PhotoRec to retrieve files (partition was hosed). Got a ton of files to give back to my friend, the owner of the laptop.To get to the CMOS battery, I had to remove the plastic battery casing (3 screws). I disconnected the tiny white connector from the usb board to the motherboard, and freed some cables here and there. By reassembly time, I found the usb board connector had slipped off the wires.
Rather than guess at the wiring, I just left the 2-port USB board disconnected (but still in place) – small loss. I was able to unplug (and replug) the white connector from the CMOS battery without fully releasing the motherboard from the chassis. On reconnect, I also noticed the blue ribbon had become disconnected (see step 8 picture). I flipped up the connector and reinserted the ribbon cable, just before I inserted keyboard again.I have a few more pictures, including one showing cmos battery. If author would like them, please contact me (you have my email from the post), and you can add them if you like.
I should add on After the battery trick to clear CMOS config data, I was able to boot into the bios and check all the screens etc. I was also able to do a Restore of the whole disk and get the system working again. There were two issues along the way1) As mentioned, I left two usb ports unusable but there are 2 more on the the right side that work fine.2) The trackpad is not doing anything. I plugged in a cheap usb mouse rather than reopen the chassis again.Thanks for these instructions!Alan.
Sony Vaio Motherboard Repair
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