Difference between revisions of "ThinkPad Dock II"
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* Positives: Expansion capability | * Positives: Expansion capability | ||
* Negatives: Cost ($399), internal fan is loud, large, less compatible | * Negatives: Cost ($399), internal fan is loud, large, less compatible | ||
| − | * Compatibility: X20/30, T20/30/40, R50/R51 and A20/30 Series notebooks.(does not support the A21e/22e, R40/40e | + | * Compatibility: X20/30, T20/30/40, R50/R51 and A20/30 Series notebooks.(does not support the A21e/22e, R40/40e/50e/51e or X40/41). |
* Warranty: One Year | * Warranty: One Year | ||
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Revision as of 16:08, 18 October 2005
IBM ThinkPad Dock IIThe IBM Dock II (Model 2877) is the most feature-packed dock IBM sells. In addition to supporting all the features of the Mini-Dock, the expansion capability of the Dock II can transform a regular Thinkpad into a full blown workstation with multiple monitors (PCI video card), higher fidelity audio (PC Card audio), and additional storage Ultrabay 2000. These expansion features are not supported by all Thinkpads, therefore the Dock II does not support as many Thinkpads as the Port Replicator II or Mini-Dock. Features
Pros & Cons
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PCI Slot
Note this is a Half Height, or 'low profile' slot. Separate brackets are required for low profile PCI cards. Normal cards will not fit.
Many use the half-size PCI slot for peripherals like secondary video cards, TV tuners, audio cards, etc. This is considered by many to be the highlight of the Dock II, and is a feature that few other docks have. The Dock II does not support AGP or PCI Express. The Ultrabay 2000 slot can be used to connect other IBM peripherals, such as second hard disks or CD/DVD drives. Potential owners of the Dock II are often concerned about compatibility and recommendations of video cards. See the compatible video cards list below for more information.
Dock II owners: anybody tried to shoehorn a larger card in? What are the dimensions? Anyone have pictures?
Video Cards
The PCI slot is most often used for installing video cards to allow for multiple monitors. This feature is especially useful for anyone that requires visualizing a large amount of information, including stock brokers, artists, etc. Due to the slow PCI bus, gaming is generally not improved much by external cards. One of the chief concerns of low profile video cards is whether they support the monitor setup you desire. As more monitors these days are LCDs, quality DVI support is essential. Additional concerns include driver support, ability to hot-swap (add or remove the thinkpad without rebooting), and noise/heat.
Quality DVI & Widescreen support
One way to work around the limitations of the docks DVI pass-through port is to use a PCI graphics card which features a PCI port. Note that while this probably will work, the performance of the PCI graphics accellerator will be poor because of the limitations of the interface.
Also the newest ATI video drivers for both Linux and Windows are known to not have limited resolution support on the external DVI port anymore.
Hot Swapping
It is unknown whether hot swapping is fully supported. Check the thinkpads.com forum for more information.
Noise/Heat
Since the Dock II has been reported to be a bit noisy, some people have taken to unplugging the fan inside (or possibly replacing it). While this likely voids your warranty, it may be necessary if you really want it quiet. Adding a video card increases the heat inside the dock, and may likely have a fan on board as well, meaning it will increase the noise level. While adding one of the below video cards is likely well within the thermal limitations of the dock, you should take into consideration the noise and heat it may add.
Anybody care to add some anecdotal information about this here?
TV Tuners
ok
Compatible Video Cards
This is a list of the most popular low-profile PCI video cards used with the IBM ThinkPad Dock II.
| Card | Chipset | RAM | DVI Ports | Max DVI Res | TDMS | Compatibility | Price |
|---|---|---|---|---|---|---|---|
| Matrox Millennium P650 Low-Profile | P650 | 64MB DDR | 2x | 1920x1200 | Unknown | Unknown | $219.95 |
| PNY Quadro NVS 280 PCI | Nvidia Quadro 280 | 64MB DDR | 2x (reqs cable) | Unknown | Unknown | Unknown | $157.99 |
| NTI Xentera GT2 | ATI Radeon 9000 | 64MB DDR | 2x | Unknown | Unknown | Unknown | $213.91 |
| NTI Xentera GT4 | ATI Radeon 9000 x2 | 64MB DDR x2 | 4x | Unknown | Unknown | Unknown | $448.95 |
Audio Cards
Other PCI Cards
Ultrabay 2000
In contrast to the Full Dock I the Full Dock II has a full featured (= hotswap capable) UltraBay 2000 slot.
Note to T4x owners: UltraBay 2000 is an older Ultrabay technology, not compatible with the UltraBay Slim in the T40/T41/T42/T43 lineup. Many UltraBay 2000 accessories are available on Ebay.
The docks IDE interface is a CMD 648, so you should enable the according kernel option (compile it into the kernel if loading as a module doesn't work), if you want to use anything else than a floppy in the docks UltraBay. Note that the interface will most likely be ide2 and ide3 then, so the docks UltraBay drive will be hde.
PC Card Slots
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TODO
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...
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DVI pass-through
LCD monitors are getting larger and higher-resolution. Currently, DVI based on 165MHz TDMS transmitters can only (officially) support 1600x1200x32 at 60Hz, which is the resolution of your average 20" non-widescreen LCD. IBM's driver support for this resolution through DVI ports on docks has been inconsistent. Also in Linux you might experience problems even with this resolution and IBM officially states that the pass-through DVI port only supports resolutions up to 1280x1024. Read our page of information on how to solve these troubles.
Please be aware that not all Thinkpad models will support DVI output with a Dock. Apparently, X and T2* models do not. Please add other models if you know about them to not support DVI.
