~Toughbooktalk~

The ram I removed that was preventing my CF-18D (which I just bought and am yet to get running) from booting is confusing me a little, so I need some definitive guidance.

KVR266X64SC25/512 is the part number on the ram

Specs are:

Kingston Technology Part No.: KVR266X64SC25/512
Upgrade Size: 512MB
Memory Kit: 1x 512MB
Module PIN count: 200-PIN
Memory Generation: DDR
Module Speed: PC2100, DDR266
MHz of Module: 266MHz
Latency of Module: CL2.5
KVR266X64SC25/512 DIMM Type: SODIMM, SO-DIMM, Small Outline DIMM

But I've found conflicting sources on the web, some say that a MK2 needs pc2100 , others pc2600



I had assumed that the person who installed it knew what they were doing, but maybe not.

I have no way of testing the ram, if it's the right speed, I have to assume that it's a bad stick (it could be a bad memory slot on my machine).

I believe that mine can take a 1gb stick to max out the ram, is this correct?

But I've found conflicting sources on the web, some say that a MK2 needs pc2100 , others pc2600

PC2600 ??? I think he meant PC2700 and yes a PC2700 will fit/replace a PC2100...it will run at the lower speed. Now I can not remember if a 1GB will work on yours or not. I think it will but just not sure

oops 2700

Must be a bad stick then, the machine won't boot when it's in place.

Yes it will work

viewtopic.php?f=5&t=1146

What is the storage/memory capacity for the CF-18 Toughbook?

CF-18D/E (Mk2) -- On-board 256. Expandable to 1,280MB

Yep a 1GB of 2100 or 2700 should work in there fine in your Mk2. I have done that before. It shows the max for a Mk1 as 768 in the official published data but they didn't have 1gb sticks back when that was originally published, 1GB will work in them too.

ADOR wrote:Yep a 1GB of 2100 or 2700 should work in there fine in your Mk2.

Definitely recommend trying to get a 1 GB memory stick. Recommend 2700 speed, not sure if 2100 will work in a Mk2.

(CF-18 are parallels in many ways to CF-29, and CF-29 Mk1 takes 2100 but Mk2 requires 2700)

The official Panasonic site shows 2100 in Mk1,2 and 3 for the CF-18. Then 3200 DDR2 on the Mk4 and 5. For the 29 they show 2100 Mk1, then 2700 for the Mk2,3. But like a few other things I have found on that site it could be wrong.

The Mk2 and Mk3 CF-18 have the same CPU, sound card, chipset and video card. The early Mk3's had 2200 intel wireless and 256MB ram on-board, later on they changed it to 512MB on-board ram and 2915 wireless card standard. Not much difference between them.

I know the motherboards swap freely between the Mk1 to Mk3 models, the Mk1 has a extra wire running to the rear speaker plug in, the other end plugs in next to the regular speaker. Only real difference I have seen in them.