With your purchase, your will recieve free tech phone support and video installation tutorial with printable instructions when available. We want your purchase as painless as possible. We have been in business for more than 21 years and have a perfect A+ rating with the BBB. We pride ourselves in selling only the best Dell parts. The new motherboard has connectors for two speakers but not the subwoofer that the M90 had fitted.Īfter putting it back together I installed Throttlestop to overclock the processor, which seems to be working okay, although some fiddling with power management or fan control is needed for Throttlestop to work.We want you to be 100% happy with your purchase or your money back. I didn't upgrade the video card so I can't say I have a full M6300 system. Once I did that everything went smoothly - the BIOS came up in manufacturing mode, then did an extra-slow POST, and after that boots normally. I had a fright when the system didn't come up but flashed Caps Lock it turned out I hadn't seated the new memory correctly. I was unable to unscrew the modem from the old motherboard fortunately I never use it. I found that my M90 (bought second-hand) had several case screws missing before I started. Others will know what the correct name is for this tool.

This grips the M90's screws better than a more pointy cross-head screwdriver. Hopefully it won't affect cooling to have both a thin layer of thermal paste and the pad between the processor and heatsink.īe sure to get the right kind of screwdriver - it has a slightly blunt, chiselled look to the head. I put some on the processor before I realized this. The processor heatsink comes with gooey thermal pads already on it, so you should not need thermal paste. The replacement case bottom may not be needed - I got it because I had read the M90 case was slightly the wrong shape around the battery compartment, but I did not notice any difference between the two. I disassembled the M90 following the service manual, then put the new motherboard in the new case bottom and reassembled.

M90 service manual (download from website) 800MHz memory (I used Corsair VS8GSDSKIT800D2) M6300 bottom of case (may not be needed) M6300 processor heatsink (the M90 one is the wrong shape) I successfully replaced my M90's motherboard with an M6300 motherboard.

Dell m90 laptop fan control