Dual core Upgrade for Pentium M 740 1.73GHz, 533 FSB

I have a Sharp laptop that is great, but it is getting a bit on the old side. I wonder if there is a dual-core upgrade path for it? I see dual core processors, but they have the 667 FSB.

I think am looking for a 533MHz FSB socket M dual core that is as fast as they come.

Can you shed some light on what will work and what will not work?

Here is the current processor's CPUID screen shots:

 

well, i have the same except mine has 1.6ghz. And some guys told me im able to upgrade it to C2D if i want!!

cheers

 

You're limited to Pentium M's. The Core Duos, Core 2 Duos, and Pentium Dual Cores won't work.

Stop giving people false hope.

 

no.... really, its sure you can upgrade to Core duo, and maybe C2D

 

Alright, I didn't want to be harsh the first time but you forced me to do it: Stop spewing false information! Don't post the wrong thing! Ne pas dire l'information fausse!

 

Thanks for the replies. However, I'm not totally clear.

Would this work (y/n):

Intel Pentium M 780 Dothan 2.26GHz 2MB L2 Cache Socket M Processor
http://www.newegg.com/Product/Product.aspx?Item=N82E16819111176

Or this one (y/n):

Intel Core 2 Duo T7600 Merom 2.33GHz 4M shared L2 Cache Socket M Processor
http://www.newegg.com/Product/Product.aspx?Item=N82E16819111300

Both of those are pretty high end, and it certainly might not make sense to do it, but I am curious if either of those "should" work.

Both are listed as "Socket M".

The single core has the 533 FSB, so I think it would have the best chance of working, but $635 is a lot to go from 1.73GHz to 2.26GHz.

The dual core looks interesting, but its FSB is 667. Can its core still be clocked at the rated 2.33GHz if the FSB is only at the 533MHz? Or would the two cores run at 2.33GHz * (533MHz/667MHz) = 1.86GHz. Are these "unlocked"? Is there utilities to set the clock independent of the FSB?

The other and probably greater questions is whether it even makes any sense, and I'm thinking "no", based on the age of the laptop, and the price of new models.

 

All Pentium M's are socket 749. Anything newer is Socket M or P.

Only Pentium M's will work in your machine. I believe there's an error with Newegg reporting that as socket M.

 

Ahhhh, so a "Pentium M" is a "Socket 479", which is not the same as a "Socket M"?

 

No, Intel kept the same socket but changed the pin configurations on the processor which basically means a system designed to run Pentium M wont run a Core/Core 2 series processors. The same is true when comparing Socket M with Socket P.

Also the Core/Core 2 are only supported by i945 or above chipsets. The 915 does not support the Core series processors.

 

Thanks for your reply.

So basically, there is no way I'm going to get a dual core into this laptop?

My only upgrade path is the single core "Intel Pentium M 780 Dothan 2.26GHz 2MB L2 Cache Socket M Processor"?

I think I have it sorted now, but I want to be sure I did not miss anything.

 

The only way would to buy a new laptop or see if Sharp offered the same laptop with a Core series, then you have a slight possibility of replacing the motherboard with a newer one supporting Core series cpu. But the model should be exactly identical to your for this to work since laptop MB's are custom built to a specific model.

Unfortunately yes, but its definately not worth it to spend $635 on the P-M 780. I would look for cheaper places if you really want to upgrade.

 

OK. Thanks for all of your help. I'll give up on the processor upgrade route.

I have the memory maxed out, and I have a 250GB Western Digital Scorpio on order, so I think that will be it until it is time for a whole new system.

Thanks again to all the responders on this thread. I really appreciate it.

 

just curious baxsie, exactly when do you notice your system is being slow?

ps. you may find this interesting http://cgi.ebay.nl/Intel-P4M-755-Do...ryZ99251QQrdZ1QQssPageNameZWD2VQQcmdZViewItem

 

correct that system cannot be upgraded past the pentium m.. the chipset you have will not support it nor will the socket..

 

XxLblinkxX you have a pentium DUAL CORE totally different than the pentium m

 

Ummmmm . . . . when I compare it to newer systems, LOL

Just trying to give it a "mid-life kicker". Seeing what can be done. I did come across that auction . . . .

 

I was asking because there's only very few application that will really be faster with a 2.0Ghz instead of 1,7Ghz.

Only some applications like ripping a DVD to avi, or games will be noticably faster.

I read you already ordered a faster harddrive. Have you tried installing a clean OS? that usually speeds up things alot.

 

Correct. The chipset and socket of your laptop can only support Pentium-Ms and Pentium-M based Celeron-Ms. You could I believe get up to 2.33GHz but it won't be a cost-effective upgrade. I'd get more ram, a faster hard disk and re-install windows for more responsive performance.

 

you can sell your laptop can get one that has a core 2 duo

 

Well, I went ahead and got a "Intel Pentium M 780" off e-bay for $200. I am not totally sure if that is the brightest upgrade in terms of $ / MHz, but if the processor works it should satisfy my "upgrade urge".

That combined with the new HDD should work out OK.

 

That's a lot of cash for not a huge amount of upgrade power but it's up to you. You should see a nice improvement. Make sure you clean out the cooling and use some good thermal paste on the new cpu to make sure your machine doesn't heat up.

 

i misunderstood, i guess

 

Quick update for anyone thinking of upgrading the CPU of a Sharp PC-M4000 Widenote CPU, it is pretty much impossible. The CPU is a BGA package soldered directly to the PCB, and unless you happen to have some super high-tech rework tools, there is no way to swap out the processor.

On the positive side, the 250GB WD drive is working great.

 

In case anyone is interested in the processor that I could not install, I have listed it back on e-bay:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190165991584