Zepto 6625 CPU Upgrade

Hey, I have a Zepto 6625 (see sig for details) and my friend wants to buy my Intel T7500 off me to upgrade his slow-*** T5250 in his laptop. I now want a Penryn CPU (yes, laptop is compatible with them), but I'm having trouble deciding which.

I'm looking at the following: ( EDIT: I found some more prices)

T9300 - 2.5Ghz, 800Mhz FSB, £223.44 from Scan (£212.63 from LambdaTek)
T9400 - 2.53Ghz, 1066Mhz FSB, £234.99 from Overclockers (£212.48 from LambdaTek)
P9500 - 2.53Ghz, 1066Mhz FSB, £252.61 from Overclockers
T9500 - 2.6Ghz, 800Mhz FSB, can't find price or supplier D:

The questions are as follows:

1. How do the T9400 and P9500 differ?
2. Can you give me alternative suppliers which sell these CPUs cheaper (and anyone got a link for T9500)
3. Which CPU would be best for my system? (money is not an issue)

 

Your Zepto 6625 is based on the Santa Rosa Platform (PM965 chipset), so T9400 and the P9500 are out, as they may not be supported by the BIOS, and will in any case run at a reduced BUS speed, which will be more of a handicap for the CPU.

Your Penryn options are the T8100; T8300; T9300 and the T9500.

I guess you're in the UK, so I would consider buying from an overseas seller who is seeling you a Retail Version of the above CPU alongwith with a proper invoice (proof of purchase). Else the T9300 is fine, but it seems to be really expensive.

You could get an OEM/Non-Retail T8300 for under £120 on Ebay. CPUs don't really go bad, you just need to buy from a good seller, and stress the CPU when you get it to rule out any faults in it.

 

Just came across the Intel X9000 Extreme Edition on eBay, would there be any problem with slotting this into my laptop? The seller states "for GM965、PM965 Chipset，not support 945GM、945PM" (my laptop has a 965)

 

That CPU is an ES (Engineering Sample).
The X9000 has a higher TDP.

The X9000 is supported by the PM965 chipset, but not sure if it is supported by your notebook's BIOS, as extreme CPUs are meant for 17"+ notebooks with a good cooling solution.

 

Ok, in that case I'll avoid extreme processors.

What does it mean that a CPU is an engineering sample?

 

Checkout this link..

 

Stolen? :O Omg thanks for the heads-up lol.

Btw, why is it so hard to find retailers who sell mobile processors? Just as easy to change out as a desktop processor imo (once u get the cover off obviously)

 

I think it's because:
1- less people upgrade their laptop CPU compared to those that upgrade their desktop CPU.

2- with a Desktop, you could buy one ready from dell or else, or just buy the part and build your own one. But for laptops, only few options exist to build your own laptop.

What I'm trying to say is that the demand for desktop CPUs (for new build and aftermarket upgrade) is much higher and thus justify storring them and selling them. This is not the case for laptop CPU, hence the are rare and expensive.