CF-72 cpu upgrade

[safn1949]

So the Pentium 4 CPU is removable in a CF-72......who knew.

So my question is how far can I go,the list shows up to 2.6 in the 400 FSB but the multipliers are different,now I did this on a CF-51 1.7 Pentium M where I put a 2.13 Pentium M in it but it showed CPU speed as 1.6. I was told that was due to the different multiplier and never found out how fast it was really going.

Mind you this was 2 years ago. As I have several CF-72's and too much time on my hands,I want to kick it up to 2.6. Now you guys need to tell me why I can't if I can't,never too old to learn.

http://en.wikipedia.org/wiki/List_of_In ... processors

[SHEEPMAN!]

Ador is your man. Been a year or so since I did this with CF-51.....up to 7600?????

[ADOR]

Back then the 72's and 48's had a removable CPU. I had two Mk1 or Mk3 72's and got rid of them a few years back. I never really got deep into them. What's the full model number so we can figure out the full specs.

Is the heat sink solid copper like on the 51?

I have a lot of the older gaming laptops I collect and when I can find the older CPU's cheap I upgrade. I think the best one is the Voodoo with P4 3.8 extreme, 7800 GTX and dual harddrives in RAID.

I think those units also have ATI graphics so that will help in the power department as well.

[ADOR]

Let the research begin. (GIVE ME FUEL, GIVE ME FIRE, GIVE ME THAT WHICH I DESIRE)

Quotes below

http://forum.notebookreview.com/panason ... 1-4-a.html

The CF-72s can be upgraded, but only in the same family, I.E. the 1.6Ghz P4m model will accept up to a 2.5Ghz p4m processor as long as it is a 478 pin .13micron 400mhz front side bus. The Pentium 3m models will take up to around a 1.2Ghz p3m.
So it depends on which processor the CF-48 is actually using and whether they are soldered in.


( I think before that is where you messed up on your speed on your previous swap. If you dropped a 533 MHZ CPU into a motherboard that only supported 400 MHZ speed it will work but will be underclocked)(this can help some on heat running underclocked, but unless your cooling is messed up the Pentium M series runs very cool to begin with and shouldn't really need it)

[safn1949]

CF-72VCJUZQM is the one I am putting together from a couple of units,it's interesting in that you split the case and the heatsink and fan are on one half and the motherboard on the other.BRB as I take some photos.These are from the 72X donor with a shorted mobo.

[ADOR]

http://www.manualowl.com/m/Panasonic/CF ... ual/126411

Owners manual with specs. page 30

[safn1949]

Just picked up a Pentium 4 2.5ghz SL6WY for it,the 2.6 was really expensive for me to just fool around with and I got this one from a buyer I deal with. Should be interesting with over a GB of ram in it and a 7200rpm drive.

[ADOR]

That is the reason on the Pentium M's I stick with the 2.0 and some times the 2.1. I can get those for around 20 bucks, it jumps to 80 plus for the 2.2.

[safn1949]

Got the 2.5 for $23,he has one more if you want it.

[ADOR]

I don't have anything right now that needs it, but thanks anyway. ( I am on some desktop projects right now)