07-15-2017 10:18 AM
My motherboard died on my X1 Carbon Gen 1. I sent it to lenovo and the repair estimate was ~$750. I decided to replace it myself but the part for my system FRU 04X0495 (W8P,i7-3667U,8G,F,AMT,TPM,MT) new are quite expensive. I found a new systemboard FRU 04Y1988 (W8P,i7-3667U,8G,F,AMT,TPM) at a much more reasonable price and installed that. I now have a working machine (new machine type 3448-3Y2) but no touchscreen (I assume the MT stands for touch monitor or something).
Question, and I think I know the answer, Is there any way to convert or add to my new systemboard the touch screen capability? I assume it is not just the driver?
07-15-2017 01:43 PM
On 1st gen x1 carbon, the touchpad connector and circuitry are only on some of the motherboards. MT stands for multitouch. I have an FRU 04x0340 (i5-3427U ULV 4GB On Board, MT, With FAN, wAMT wTPM) in my hand that I just pulled out of a touch model with a cracked screen. The screen was broken and it had no SSD, so it wasn't fully tested (just booted into BIOS) I was going to list it for sale at something like $100 plus shipping, but if you are interested, send me a PM. Note: This is a 4GB i5, not an 8GB i7.
07-16-2017 10:11 AM
Thanks for the offer but I don't want to invest much more in the older machine. I'll get by without the touch screen. I was wondering though , is the multitouch built into the circuitry or is it a discrete component on the board?
07-16-2017 10:30 AM
I don't know for certain, but I don't think there is much circuitry. In general, touch screens connect as a USB device.