Will a 4:3 T61 w/integrated GPU (42W7872 mobo) directly drive a 16:10 T61/p LCD?

[Johan]

I have a 4:3 format LCD T61-based FrankenPad with the 42W7872 motherboard (having the integrated Intel X3100 GPU). It is working fine.

Also, I have another T61; a 6460-DAG with a 15.4" 1680x1050 LCD (WSXGA+ = 16:10) and a dead 128MB nVIDIA Quadro NVS 140M GPU. Finally, I have a T61p; a 6460-EEG with a 15.4" 1920x1200 LCD (WUGXA = 16:10) and a dead 256MB nVIDIA Quadro FX 570M GPU; detalied specs for both of these at the bottom of this post.

If possible - and without damaging anything; that's actually the key issue here! - I would like to use the 4:3 X3100-T61 to test the both of the 15.4" (16:10) T61/p LCD's, but I don't know if this is completely safe and risk-free? I would obviously hate to destroy my 42W7872-Frankenpad by connecting a "catastrophic incompatible" 16:10 LCD that will cause permanent damage to the 4:3 T61! I have checked that the LCD cables of the WSXGA+ and of the WUXGA widescreen-T61 panels will connect to the 42W7872 LCD-connector; they will.

So, my question is this: Can the WSXGA+ and the WUXGA widescreen-T61 LCD panels be safely connected directly to the 42W7872 LCD-connector without any difficulties... or is this perhaps the safe way to destroying the 42W7872?? According to this post it should be possible for an "Intel-based T61" (but a 4:3 or a 16:10 T61??) to drive 16:10 T61 LCD's, but nonetheless I would very much like to know if I have perhaps misunderstood anything?

Note: The 4:3 T61 has the LCD cably assy = 93P4511 (according to the HMM), while both the WSXGA+ and the WUXGA panel has the LCD cable assy = 93P4513 (according to the HMM).

T8300(2.4GHz), 2GB RAM, 160GB 5400rpm HD, 15.4in 1680x1050 LCD, 128MB nVIDIA Quadro NVS 140M, CDRW/DVDRW, Intel 802.11agn wireless, Bluetooth, Modem, 1Gb Ethernet, UltraNav, Secure chip, FPR, 6c Li-Ion, WinXP Pro

T9300(2.5GHz), 2GB RAM, 250GB 5400rpm HD, 15.4in 1920x1200 LCD, 256MB nVIDIA Quadro FX 570M, CDRW/DVDRW, Intel 802.11agn, Bluetooth, Modem, 1Gb Ethernet, UltraNav, Secure chip, Fingerprint reader, 6c Li-Ion, WinXP Pro

Thanks very much in advance for any trustworthy expert-advice to this critical question!!

Johan

[RealBlackStuff]

You really should know this by now...
ANY T6x/R6x motherboard will run ANY T6x/R6x screen, regardless of size or resolution.
The LCD connectors on the motherboards are all identical.

[Johan]

Thanks very much, RBS, for your swift and friendly reply - much apprecieted!

Johan

[brchan]

There is no issue. Lenovo Thinkpads, unlike IBM Thinkpads, store LCD information in the displays themselves, not on the cables. I have swapped lcd cables between a 15.4" T61p and 4:3 T61 with no ill effects. Although I don''t recommend the following, I even attached a working T43 screen to a dying 15.4" T61p nvidia board using the T61 cable, and nothing went wrong. No blown fuses, but it was obvious the T43 display was lacking the EDID information that would normally be on the SXGA+ T4x cable, since it displayed 'tiled' images.