Processor replacement/upgrading in future

Does anyone have any information about upgrading from Celerom M to Core Duo or maybe even Core 2 Duo processors on the same MLB?

There are some really good deals on the HP NX7400 with C M 420 processors now on the intenet ($649 or so) and its a great chassis and keyboard. ( I just bought one for my wife)

When Intel first released the Core Duo chips their press releases said it was a direct replacement for the C M series with only a BIOS update.

Anyone tried it yet?

 

Depends on the chipset the Celeron M 4xx series ship with. Most of them use either the ATi 200m or the i940GM, no idea about the ATi but if it is the 940GM then it wont support any of the Core/Core 2 Duo's. Only the i945 support the Core/Core 2.

 

I don't think that the Celeron M and Core Duo/Core 2 Duo are drop in compatible.

I could be wrong, but I don't think they are.

 

The 400 series Celeron M's are based on Yonah. So, they are pin compatible.

 

Ah, right.

Like I said, I could be wrong, and apparently I am, or at least when it comes to the 400 series.

 

First of all:

Thanks for the help Jon-Michael and Miner!

The nx7400 in question appears to use the
"Mobile Intel 955XM/945GM/PM/GMS/940GML Express Processor to Dram Controller". At least that what System devices reports in Device Manager.

My wife is very happy with her new nx7400. She's a Nursing Prof and will be giving it a ton of use with PowerPoint presentations so I think the 40gb Fujitsu HD will fill up fast. That will be the next thing I will upgrade and will probably switch her to XP Pro so she can get fully authenticated to her internal domain.

Good to know that there is apparent compatibility for a future upgrade to Core Duo or Core 2 Duo. I expect there will also need to be a BIOS update at that time but thats just a download and borrowing an external floppy and I can handle that.

So it appears the nx7400 may be a good little base unit for future expansion...

Wonder if my nx8430 will be able to do the same - processor wise? I'll check the same listing under Device manager on it after I post this.

Thanks again.

 

Just checked my 8430 and the processor to Dram Controller is the same exact entry as on my wife's nx7400.
(Mobile Intel 955XM/945GM/PM/GMS/940GML Express Processor to Dram Controller).
Are we sure that's the only conformation info necessary.
Is anyone aware of a HP document that might further confirm this. Of course I don't expect them to come out and say "save money...buy the CM420 based model now and just replace the processor and BIOS 2 years from now."

That would be very detrimental to new notebook sales wouldn't it....?

 

Try Intels chipset identification utility. That should give you more clearer info. The device manager just lists the chipsets which belong to the same family and so the actual chipset can either be the 945 or the 940...
http://downloadfinder.intel.com/scripts-df-external/Product_Filter.aspx?ProductID=861

Alternately you can also use other sytem info utilities like CPU-Z, Everest or Astra32.

 

This might help to id a chip, etc

http://www.zhangduo.com/udi.html

Unknown Device Identifier 5.02


Freeware

Unknown Device Identifier enables you to identify the yellow question mark labeled Unknown Devices in Device Manager. And reports you a detailed summary for the manufacturer name, OEM name, device type, device model and even the exact name of the unknown devices. With the collected information, you might contact your hardware manufacturer for support or search the Internet for the corresponding driver with a simple click. With this utility, you might immediately convert your unidentified unknown devices into identified known devices and find proper driver on the Internet and contact the hardware device manufacturer or vender. Known devices recognized by Microsoft Windows will also be analyzed independent of the operating system.

You are suggested to do a thorough driver backup with My Drivers after you have identified all the unknown devices with their proper device drivers software installed.


Supported OS: Windows 95, Windows 98, Windows 98SE, Windows Me, Windows 2000, Windows XP and Windows 2003. Future OS are supported via the online update. You might even run the small freeware utility from CD or floppy.

 

Accordig to Everest, my chipset is:

So, will I be able to upgrade my CPU?

 

hi,i'm Gianfry from Italy,sorry for my bad English,i'm looking for an cpu-upgrade for my nx 6310 and nx 7300,both with celeron M 4xx and chipset-video 945GM FAMILY.
i bought two new intel cpu t2400 and t2500 fsb667,yonah socket 478,the same one of my hp Celeron M.
But when i re-boot my hp with new cpu duo-core,the bios 0.8-last one, see new cpu but both notebook made same problem,they not boot after 1page.
anyone can you help me to solve my cpu upgrade?
from celeron M to duo core T2400 AND/OR T2500 !!
THANKS MUCH.....i downloaded also KB896256 pacht from windows update,hotfix and more but doesn't go !!!i not see 2page.....f11ripristino....

 

Anyone succesfully upgraded from a single core CPU (like a Celeron M) to a dual core CPU (Core 2 Duo) on a nx7400 yet?

 

I'll probably get my hands on a T2600 engineering sample this weekend

Will test if it will work in my nx7400 and report back.

Anyone with a nx7400 and C2D cpu willing to send me his bios?

Regards, VidKo

 

I just replaced my Celeron M430 with a T2600. CPU is recognized in the bios and I even get a new bios option: Dual Core CPU (enable/disable)

no matter what settings are set, my nx7400 hangs after the first initial screen. Any ideas?

 

I spoke with a HP service guy. He said that HP enables only certain steppings of CPUs in the bios. If you don't buy a mobile CPU from a HP store, it won't work in your HP notebook.

HP is such a rip off.

 

So let me get this straigh. If you have a Core 2 Duo T5450 you can upgrade to the Core 2 duo T7300? Right Since they use the same chipset? On a dv9500t series of course.

 

Depends on the chipset in your notebook. But you have to buy the CPU from HP, or it won't work.

 

So, you mean that if I have a T5200 (1.66 Core 2 Duo) I can upgrade it to Sant Rosa? I ordered directly from HP (is a DV6000t) I can upgrade my processor later? Thats good to know!!!

Im not too much into gaming and my 7400 video card is doing very well with the games that I have being playing (old games) so, it is possible to upgrade the processor in the future?? The T5200 to Santa Rosa?_?

 

Upgrade the processor is a yes but not to the Santa Rosa based procs. You will be able to upgrade to any Socket M - core 2 Duo(T7200, T7400, T7600). The Santa Rosa based core 2 duos(T7100, T7300, T7500..) are Socket P and are not pin compatible with socket M even thought they have the same pin count.

Yes.

Thats common practice...When a product reaches its EOL they wont add support for newer steppings. Try an older stepping of the Core Duo and see if it works. Also since you have opened up the notebook have you looked at the markings on the chipset, that might help you out determining ehich chipset is used.

 

On the HP page, it clearly states that the T2600 should work in my nx7400 (RH411EA#AKN) notebook. The compatible CPUs are:

And the newest bios also adds support for T5xxx and T7xxx processors:

So, because my T2600 (which by the way wasn't bought from HP, but from a friend which had it in a Toshiba notebook) won't work, my only conclusion is that HP enables only certain steppings of above mentioned CPUs. I am also getting a T2400 (which comes from an HP notebook) and will try it in my nx7400 to prove that I am right.

By the way, my chipset:
Northbridge Intel i945GM rev. 03
Southbridge Intel 82801GHM (ICH7-M DH) rev. 01

 

Very interesting mate!!! thanks!!!

I realized that I travel a lot with my notebook, so I would be thinking in purchase a DV2500t, but I would keep reminding myself that I can upgrade my processor... thats good news... my NVIDIA 7400 is doing the work....

THANKS MAN!!!

 

Ok, now I have proof that only those CPUs that are bought from HP work in the nx7400 series. I bought a T2400 which comes from a HP nc9xxx series of a notebook and works without any problem in my nx7400.

 

http://www.aldenassociates.net/Sales/PriceLists/LenovoMatrix.pdf

If you read that pdf it states that the core duo lenovo notebooks (only two i believe) are running on the 940gm chipset. i hope this helps move the question along.

 

HP Compaq nx7400 Notebook PC Maintenance and Service Guide

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01035648/c01035648.pdf

you can opdate to old core2 due processer

 

Guys please start reading.

I know which CPUs can be replaced. BUT THEY HAVE TO BE FROM HP!!! That's the main problem.

You can't go to a local store and buy a vanilla mobile T2600 for your HP notebook. You have to buy one from HP store, and of course they are alot more expensive.

 

Vidko, I agree and I read what you said, but I have somewhat of a different problem than you do. I have the 940gm chipset. That's why I listed the above PDF. I have no problem finding a T2050 core duo on ebay out of an hp/compaq, I just want to make sure it is going to work. As I stated before I know the core solo works with that chipset (someone else already did so) but I want to know if the duo's work also. The bios update from hp lists the T2050 as compatible but they obviously aren't very good with specifics.

 

here
http://www.preis.de/produkte/Intel-Core-Duo-Mobile-T2600-216GHz/83105.html

http://www.ncix.com/products/index.php?sku=18335&vpn=BX80539T2600&manufacture=Intel

http://www.google.dk/search?hl=da&q=mobile+T2600&btnG=Google-s%C3%B8gning&****=

 

notebook mobile Processor core duo

http://www.netgiganten.dk/shop/intel-core-duo-1356c1.html
http://cgi.ebay.com/Intel-Core-Duo-...6168017QQihZ015QQcategoryZ31532QQcmdZViewItem

 

I am not sure if the 940gm/gml chipset supports anything other than Celerons. At least according to Intel. I will try and look into it.

 

Thanks, I appreciate it, I have read previously that the T1350 Core Solo will work, so I don't see why an OEM T2050 (which is listed in the manual) would not work. Let me know if you find anything else through PM. I would appreciate it.

 

Too bad you don't live somewhere in my vicinity. We could try my T2400 in your notebook as I got very good in dismantling the nx7400 series. And we would obtain first hand results.

 

haha yeah you're just SLIGHTLY far. I've been trying to get my hands on an oem t2050 to see if it will work or not but I haven't gotten around to it yet.