UPDATE: It worked, read below.
I successfully swapped an Intel GPU-based motherboard from an R51 in place of the ATI GPU-based motherboard in a T41.
(R51's were offered with either ATI or Intel GPU's.)Notes/known limitations:1)
: R51 motherboards have one single slot PC Cardbus Controller. Therefore, with this swap you will loose the ability to use two Type I or two Type II PC Cards at one time. You will be able to use one Type I, one Type II, or one Type III PC Card. (Thanks to sojourner
for identifying and researching this limitation.)2)
: Mini-Dock and Port Replicator II's only support DVI with ATI GPU based R5x or T4x machines, not the Intel GPU based models. However, with the more expensive Dock II, you can install a PCI DVI adapter and use a DVI connected LCD display. Please consider this limitation before swapping motherboards. (Thanks to virge
for bringing this up.)3)
: At this time, it appears that SXGA+ LCD's are NOT supported in a 14" base with R51/R52 Intel GPU-based motherboards at all. However, Intel R52 GPU-based motherboards that were originally paired with SXGA+ LCD's, should work in 15" T42 or T43 bases with 15" SXGA+ LCD's. Apparently, the correct motherboard part and 15" LCD cable is required. See this thread for more info --> viewtopic.php?t=70813
(thanks to Doug
for the info/research)4)
: Bluetooth is supported with R51 Intel GPU motherboards. However, the correct Bluetooth BMDC adapter is required. The Bluetooth III adapter (BMDC200 rev. B) works. This is the adapter that originally came in T42 and R51 machines equipped with Bluetooth. If you use the wrong BMDC adapter, you will receive the 1803 Unauthorized Daughter Card error, which prevents booting. Any modem CDC daughter card works fine. Alternately, an R52 Intel GPU motherboard and the appropriate Bluetooth adapter (called Bluetooth IV, BMDC3 and BMDC300) will also work.Original first posting below:
Just checking to see if anyone has tried this yet.
In an effort to permanently fix the T4x GPU problem, I'm going to try an alternate fix method - using a motherboard from an Intel-based R51
. There were two different Intel-based R51 motherboard models, one had 10/100 Ethernet and the other had 10/100/1000 Ethernet plus FireWire. The 10/100 Ethernet model is probably a better choice so I don't have a phantom FireWire port (or a custom hole/port).
I selected this motherboard because R51's are very similar to T4x's and this model ran quiet, fast and cool. I think the swap will work, but I will know for sure in about one week. I just bought one.
I know you can swap ATI-based R51 motherboards with T4x's, so I think it will work.
Has anyone tried this yet? Results? If it works, I will have eliminated the possibility of GPU failure for one T41!