Can I use ddr2 memory
how do i know if i need ddr or ddr2 ?
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Since looking up the computer model doesn't seem to be leading to definitive results, how about a visual check?
charlie, I'm assuming you have the Toughbook in your possession. The hatchway to access the RAM is usually screwed onto the bottom of the case. Remove one stick of RAM, and post whatever's printed on the label back to this thread. The label will include (among other things) the manufacturer, the manufacturer's model number, the memory type (DDR, DDR2, DDR3) and the memory speed (PC-3200, PC2-5300, PC3-1066, for example).
Notice how DDR, DDR2 and DDR3 have different speed codes; the prefix (PC, PC2, PC#) tells you which type it is.
DDR, DDR2 and DDR3 also have different numbers of contact pins, and locator slots in different positions, so you can't fit a chip into a slot for a different type unless you really force it. Here's an image comparing the slot positions for the different types:
http://en.wikipedia.org/wiki/File:Laptop...
If worst comes to worst, you can always do it the old-fashioned way. Go into a local computer shop with your Toughbook, and tell the nerdy guy behind the counter: "I need RAM that will work in this laptop". They've definitely got stuff around, and since it's likely to be used, you should get it for cheap.
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Or, of course, we could go to the source:
http://www.panasonic.com/business/toughb...
Check under:
1) "Technical Specifications: What is the CF-29 Toughbook's storage/memory capacity?"
2) "Technical Specifications: What type of memory can be used in the CF-29 Toughbook?"
3)"Technical Specifications: What are the CF-29's memory module part numbers?"
It looks like there were five different generations of the TB CF-29, with three different RAM speeds - both DDR and DDR2. You should probably take a look at the RAM that's in there now, and compare it to the Panasonic part numbers in that last tech spec note.
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I'm full of Bull%^$#. Check the model number of your computer and determine what MK (mark) you have. MK 1, 2, and 3 require DDR RAM. If you have a MK 4 or 5 you have to use DDR2 RAM. They are not interchangeable.
Go to http://www.toughwiki.com/index.php?title... for more information
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lol
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You can use DDR2 for MK4 and MK5CF-29 Toughbooks, same for CF-30. You cannot use DDR2 for MK1-MK3 CF-29 Toughbooks.
To learn more about DDR2 RAM for Panasonic Toughbooks, visit PanasonicToughbooks.net. The Max size for these machines
1GB. Add that to the internal RAM in BIOS either 256MB or 512GB.
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Great site, but it is not part of the answer. Nowhere in there did I find anything about the DDR2 memory....
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Hum a quick run of Speccy will tell you all you ned to know about the machine mate.
http://www.piriform.com/speccy
Oh meant to add in a nutshell no you can't mix RAMs either by choice or stick notch configuration
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If you're confident enough to add your own memory you should be competent enough to follow adlerpe's answer and read the type off the currently installed memory. If his answer is acceptable please mark it so.
door originalmachead