07-05-2012 02:33 PM - edited 07-06-2012 05:38 AM
Hi everyone, I want to buy a T420(not 430, not 420s/i), I know Lenovo Datasheet does not say the (All) actual max support of parts.
So, my Q is about Unofficial(actual) max support of these parts: Are my answers right? any experince ?
1- Memory capacity: 16 GB
2- Memory Ferequency: 1600 (Update: according to Intel 1333 for dualcore and 1600 for Quad Sandybridges)
3- CPU : 2920XM Quad core
4- Internal bay SATA interface speed: 6 Gbps
5- Ultrabay SATA interface speed: 6 Gbps
6- mSATA interface speed: 3 Gbps
7- USB interface: USB2 with 480 Mbps
8- eSATA interface speed: 3 Gbps
maybe you want to add some questions?
9- ExpressSlot/43 max Speed: 185 MB/s
10- USB3 Expresscard speed: ?
11- Total # of independent displays: 3
07-05-2012 08:12 PM
07-05-2012 11:43 PM
1- yes (original spec was 8GB max, it has been revised to 16GB officially)
2- Official is 1333; 8GB of 1866 is known to work on X220 and may work on T420 (16GB @ 1866 might be pushing it though)
3- Quadcores will overheat, the cooling system is only designed for the TDP of the dual core. If you had a quad core good thermal interface material, and a way to significantly undervolt the processor it, you might be ok.
4 - yes
Express port- >/= 185 MB/sec
I know some Wseries owners add the Blu-Ray Burner (Panasonic UJ-240 OEM SATA) to their machines. I have not heard of this on the T420 yet.
Screen- I don't know if people have tried something different like higher res, higher gamut, or different technology (such as IPS)).
Thinklight- It might be an interesting modding project to see one of these brighter or in a different color.
09-12-2012 06:13 AM
nibs, did you have to do anything special aside from just put the two 8GB in? I just ordered a set and am hoping there is nothing special that I have to do to get the T420 to actually use the memory!
09-12-2012 07:32 AM
10-22-2012 04:41 PM
Spanish language off-topic post moved to Spanish boards. Moved to T series board - but that's just a guess...
10-19-2013 06:48 PM
apologies for thread necromancy, but has anyone verified point 2 in practice? i am planning to upgrade the CPU in my T420 to a quad-core SandyBridge and would like to make sure that it will indeed raise the memory speed limit to 1600.