Can i upgrade from a T4300 to a T9300?

I don't think you can upgrade a laptops processor.

It is only .4ghz so you are unlikely to see any performance difference. Any higher cpus are not worth the price. What is your reason to upgrade?

Sorry, you can't

Only this processors are compatible with your chipset GL40 :

Intel® Celeron® Processor 575 (1M Cache, 2.00 GHz, 667 MHz FSB)
Intel® Celeron® Processor 585 (1M Cache, 2.16 GHz, 667 MHz FSB)
Intel® Celeron® Processor T1700 (1M Cache, 1.83 GHz, 667 MHz FSB)
Intel® Celeron® Processor T3100 (1M Cache, 1.90 GHz, 800 MHz FSB)
Intel® Celeron® Processor T1600 (1M Cache, 1.66 GHz, 667 MHz FSB)
Intel® Celeron® Processor T3000 (1M Cache, 1.80 GHz, 800 MHz FSB)
Intel® Celeron® Processor 900 (1M Cache, 2.20 GHz, 800 MHz FSB)
Intel® Celeron® Processor T3500 (1M Cache, 2.10 GHz, 800 MHz FSB)
Intel® Celeron® Processor T3300 (1M Cache, 2.00 GHz, 800 MHz FSB)
Intel® Celeron® Processor 925 (1M Cache, 2.30 GHz, 800 MHz FSB)

Sorry, i was wrong. If you see intel website specifications, only appear this processors (for this i was wrong). But surffing Internet i found this forum: http/www.cpu-upgrade.com/mb-Intel_(chipsets)/GL40_Express.html
Altough intel web site specified that GL40 chipset only works for few processor, many people has run powers processor like T9300 in GL40 motherboard.
Summarizing, i'm not sure if T9300 will work or not in your laptop

Would there be any risk in buying one and trying it?

yes , the risk is that your bios may not sopport this processor.

That wouldn't cause any damage to my hardware would it? just cost me the price of a T9300

The worst situation is rhat the new CPU not works in your laptop, but the new CPU not cause physical damage.

Ok is there anyway of seeing what my current bios are/support ?

If there is a way, i dont know it.

The only way is to contact the manufacturer for a support list. Also game performance is mostly gpu related not cpu. Intel gma are seriously underpowered for any decent graphics game in the last decade.

Sorry to TechyNoobz for kinda hijacking his thread but I have the same laptop

Hi

SERIOUSLY dont....(look at my sig)

Most people who have never stripped a Lappy end up with a drop in bin lappy, afterwards...

And its a TINY unnoticeable gain if you manage it....

NOT worth the risk...

All the best Brett

I guess this thread is dead by now, but I wanted to let anyone else who's been wondering about upgrading their laptop processor know that there are options. I have a budget laptop, namely the Compaq CQ50 series. It's kind of out of date compared to the newest models, but honestly I don't have the cash to go buy a new one.

So I looked into upgrading the processor and after buying a T7500 to replace the single core Intel Pentium 575 I can tell you from first hand experience that you can upgrade the processor. Depending on your notebook type it may or may not be easy to access the processor. In the case of my Compaq it was fairly easy to get to the chip and the system itself was fairly light on the number of screws and flex cables, making reassembly much easier than I expected.

The GL40 chipset can support a processor up to but not exceeding the T9500 dual core Penryn series processor (based on my current research on the topic). The Core2Quads are also socket Socket P (478pin) but there TDP is higher at 45W so it may work but with the limited cooling options of a laptop it would probably become problematic with over heating issues. I plan on buying one last processor for mine, to take it from the T7500 (working with it right now) to the T9300. The reason for this is that the T7500 utilizes the 65nm production method whereas the T9300 is 45nm and has other extended features and a larger L2 cache, plus a few 100 more mhz on the core speed.

Like the others have said there isn't much difference after the upgrade. Windows 7's processor and memory subscores improved by a full point from 4.2 something to 5.5 each but the graphics capabilities remained pretty much the same. The GPU is a ball grid array so removing it is very difficult and would require special tools, plus I don't think any other GPU/SB chipsets will work in place of the GMA4500 hub. I wanted it to run Dungeon Siege II so my nephews and I could play it together over a LAN game. Which it does that now after upgrading the processor, but I still have to run it on low/lame settings to get any decent frames. Your best bet to squeeze out any more performance would be to update the system RAM to 800mhz DDR2 with the tighest timings you can find. If you're already at the DD2 800mhz level then there is nothing else you can do for this chipset and its limited GPU. The Intel GL** series is for use on budget laptops and low power systems. It was never built with the intention to use it for high end gaming.