HP Compaq nx7400: nx7400 CPU Upgrade

Hello!  I am a happy owner of this portable 10 years old and you want to upgrade the processor.

I've already put the Max of 4 GB RAM amount, cleaned, replace thermal paste and it works like a charm with Linux on it after the deletion of XP.

I just want to be sure to get the right CPU when ordering and don't completely understand how to be SAFE! that one will work.  A lot of research but still a little uncertain, so any help would be great.  I know an SSD could do wonders for it but want to see how a better CPU will help.  I see a CPU will be much less expensive too.  Some PCs, I've worked on that sometimes show the CPU maxing out as with this one, so it would make sense to have one a little better just for fun.  One thing that concerns me is to get one with a larger number of model who perform no better.  I looked at several CPUs in general and always see more low spec cpu that are better/more fast that the newest lol?

With the processor I look at you, the largest number of model I see that might work is the T7600, mine is Intel Core Duo T5500 (1.66 GHz) processor.  They have essentially the same features on the Intel Site, and I'll leave the link.  But cpubenchmark.net, it seems that the catches could be a little different.  Can someone shed some light on how I can be positive that I have order the right one?  Here are a few links to make it easier.

Again, mine is the:

Intel® Core™ 2 Duo Processor T5500
(1.66 GHz front side bus at 667 MHz, 2 MB Cache)

I would go with what would be the best upgrade.  I'll give a bunch of info, hope it isn't much.

The one I'm looking at:

Intel® Core™ 2 Duo Processor T7600

(2.33 GHz, 667 MHz FSB, 4 MB Cache)

1. manual repair, Page 9 shows all the cpu that came with an iteration of this laptop

http://h20565.www2.HP.com/hpsc/doc/public/display?sp4ts.Oid=1847094&docLocale=en_US&docid=emr_na-C01...

2. link to the HP official site

http://h20565.www2.HP.com/portal/site/hpsc/public/PSI/home/?sp4ts.Oid=1847094

3 Intel comparisons

http://Ark.Intel.com/products/27253/Intel-Core2-Duo-processor-T5500-2m-cache-1_66-GHz-667-MHz-FSB

http://Ark.Intel.com/products/27257/Intel-Core2-Duo-processor-T7600-4m-cache-2_33-GHz-667-MHz-FSB

4 cpubenchmark comparisons: "But cpubenchmark.net, it seems that the catches could be a little different."

http://www.cpubenchmark.NET/CPU.php?CPU=Intel+Core2+Duo+T5500+%40+1.66GHz&ID=922

http://www.cpubenchmark.NET/CPU.php?CPU=Intel+Core2+Duo+T7600+%40+2.33GHz&ID=929

5 Intel Product list: 'product of order Codes for Intel Core™ 2 Duo processors.

http://www.Intel.com/content/www/us/en/support/processors/000005673.html

6. in addition, it is important that the MHz is the same: "667 MHz - FSB.

It's all the stuff very interesting to me, thanks in advance, pcpunk

Yes the T7600 will work, but I get it by the HP part number:

Processor Core Duo T7600 (2.33 GHz) 439225-001

It is a processor Socket M, and they are very abundant on eBay for about $25.

Thet are all shipments to Hong Kong or China, I'm afraid:

http://www.eBay.com/ITM/SL9SD-Intel-Core-2-Duo-T7600-2-33-GHz-4-MB-667-MHz-Socket-478-us-free-shipping-/131562377794?hash=item1ea1ba9242:gQIAAOSwPcVVsETE

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