Difference between revisions of "Talk:CompactFlash boot drive"
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UltraDMA Mode 6 means that the transfer speed is limited to 100MB/s, which is the equivalent of a 666X speed CF card (100 / 0.15), although in practice a slightly slower card will probably already max out the interface due to protocol overhead. | UltraDMA Mode 6 means that the transfer speed is limited to 100MB/s, which is the equivalent of a 666X speed CF card (100 / 0.15), although in practice a slightly slower card will probably already max out the interface due to protocol overhead. | ||
| + | = Pictures = | ||
| + | Please upload them if you don't want to link to Flickr. They are freely licensed. | ||
| − | + | * [http://www.flickr.com/photos/hendry/2614028728 With USB adaptor] | |
| − | + | * [http://www.flickr.com/photos/hendry/2613258603 In dock] | |
Revision as of 11:14, 27 June 2008
misc notes...
- SanDisk has industrial CF cards that can be ordered as fixed disk, but they are expensive!
- Pretec 333X looks interesting (50MB/s read, 40MB/s write), but it seems that the SanDisk Extreme IV, SanDisk Ducati Edition and Lexar 300X all outperform it in real world tests. They are available though up to 24GB, if you can afford it ($800)
- STEC Mach4 CF looks very interesting (90MB/s read, 55MB/s write) with 16 and 32GB, but no price, or any way of ordering any of their products indicated, and no independent speed tests to confirm claims (it looks like they are pure OEM only).
Most ThinkPads such as the T40, T41, T42 and X40 have Intel IDE controllers, which are limited to UltraDMA Mode 6 (= UltraDMA/100). The SATA to IDE bridge chip in the ThinkPad T43 and X41 is limited in the same way to UltraDMA Mode 6. UltraDMA Mode 6 means that the transfer speed is limited to 100MB/s, which is the equivalent of a 666X speed CF card (100 / 0.15), although in practice a slightly slower card will probably already max out the interface due to protocol overhead.
Pictures
Please upload them if you don't want to link to Flickr. They are freely licensed.
