T43 memory in T42

[sparta.rising]

So I know the T42 took PC2700 memory and a T43 takes PC4200, but would I be able to take a stick of a T43 and put it in a T42? Like would it just run slower, or would this not work at all?

[DIGITALgimpus]

AFAIK PC4200 will not work in a T42.

[gunston]

So I know the T42 took PC2700 memory and a T43 takes PC4200, but would I be able to take a stick of a T43 and put it in a T42? Like would it just run slower, or would this not work at all?

hahaha, do you think P4 centrino processor will work on P1 motherboard?

[sparta.rising]

Well I know boards usually support slower memory and according to Crucial the T43 can use 667 (but runs at 533 speed)

[dr_st]

The thing is that T42 uses DDR ram and T43 uses DDR2, which are physically incompatible.

[lithium726]

So I know the T42 took PC2700 memory and a T43 takes PC4200, but would I be able to take a stick of a T43 and put it in a T42? Like would it just run slower, or would this not work at all?

hahaha, do you think P4 centrino processor will work on P1 motherboard?

hahaha, do you think a p4 processor would work in a centrino-based motherboard?

the two ram technologies are different and physically incompatable, sorry.

[nichevo]

So I know the T42 took PC2700 memory and a T43 takes PC4200, but would I be able to take a stick of a T43 and put it in a T42? Like would it just run slower, or would this not work at all?

hahaha, do you think P4 centrino processor will work on P1 motherboard?

hahaha, do you think a p4 processor would work in a centrino-based motherboard?

the two ram technologies are different and physically incompatable, sorry.



I don't think this is true. Isn't the T43 using PC4200 DDR, *not* DDR2? Would DDR PC4200 work in a T41/T42?

Hum, maybe not. Well I'm glad I checked. Sigh

[craigmontHunter]

The ram is the same between the T40, T41, T42, R50, R51 (and older ones, I just don't know the specifics) - DDR1. The T43, R52 up to the T/R/X61, and the entire Z series all use DDR2, which is physically diffrent from the DDR used in the older models.

Centrino was a Pentium M processor, an intel wifi card and intel chipset. The pentium M was designed as a low power, high efficency core for mobile use, built on the P3 core with some of the newer aspects of the P4 built in. the P4 (including P4m and mobile pentium 4) were higher clocked, had hyperthreading and substantially higher power use than the pentium M, which provided speed improvements in some programs, but ultimately the pentium M would match a Pentium 4 about 1.5 times the clock speed (1.6ghz PM would match a 2.4ghz P4) due to pipeline improvements.

I hope that this has answered your question.

[nichevo]

The ram is the same between the T40, T41, T42, R50, R51 (and older ones, I just don't know the specifics) - DDR1. The T43, R52 up to the T/R/X61, and the entire Z series all use DDR2, which is physically diffrent from the DDR used in the older models.

Centrino was a Pentium M processor, an intel wifi card and intel chipset. The pentium M was designed as a low power, high efficency core for mobile use, built on the P3 core with some of the newer aspects of the P4 built in. the P4 (including P4m and mobile pentium 4) were higher clocked, had hyperthreading and substantially higher power use than the pentium M, which provided speed improvements in some programs, but ultimately the pentium M would match a Pentium 4 about 1.5 times the clock speed (1.6ghz PM would match a 2.4ghz P4) due to pipeline improvements.

I hope that this has answered your question.

Oh haha, those were quotes, the board wouldn't let me put in multi inline quotes. I just wanted to know about the ram, not about the CPUs, haha. Just trying to figure out cheapest way to max RAM in T4x machines.

[ajkula66]

There is no cheap way of maxing out pre-T43 units...although it's really nowhere as bad as it used to be...so you're looking at $50-60 for 2GB there as opposed to $25 or so on a T43/p or R52.

[nichevo]

You seem pretty current...I learned there is a 2gb DDR2 for the T43 (and I guess you could use a 5300), so that would seem to imply you could go to 4gb. But, no? As of 2008 searching this board leads to the conclusion that you can only go to 2GB, occasionally to 2.5GB. Any news on this? I have been thinking maybe go T42 in preference to T43...but going over 2Gb would be a decisive edge.

[ajkula66]

Nothing new under the sun.

The chipsets are still the same ones from six years ago or more, as are the limitations.

I really don't know what to add...

There's no bigger PC2700 DIMMs than 1GB in laptop world, so T42 ends there, and forever.

As does T43 with its 2GB DDR-of-your-choice, but for other - aforementioned - reasons.

[nichevo]

No, that's all fine. Just that I know these things change - for instance T61 is not formally spec'd to take 8GB. Also, I have a friend with a T410s, wants to max the RAM. I guess max is 8GB since there are no 8GB SODIMMs for PC 8500 or above, but if there were, might it not go to 16GB? Basically, I thought I'd see if there was anything new under the sun.