CPU Upgrade failure. Acer TravelMate 2480

Help?!

A friend ask whether we could upgrade his laptop to dualcore.
In addition, we managed to install a single 2Gb DDR2 simm and got success.

Ok, Ran CPU-Z, she's a Celeron M 420 1.6Ghz Yonah, 1Mb L2.

Therefore Socket M. 533FSB. 12x Multi.

Visited Acer, Downloaded & installed the Bios update to V.3216.

Quote Readme, "Support CPU microcode including Yonah and Merom".... so technically it even supports the early socket M Core2's.....

Anyway,
Found a Socket M, Dual Core Yonah T2450, 533FSB. SLA4M C0 chip on ebay.
Fitted chip, fresh AR5 etc....

No boot. I get 4secs of cpu fan running, and shutdown. Faulty CPU?

Chipset is GML940- and THAT could be my reason. Wikipedia thinks GML943 is the start of dual core support... But why would the bios update say otherwise?

Sean

 

Ah, 940/943. These are in some cases compatible with dual core but often that's not the case. Most of the time people have successfully upgraded to Core Solo chips but Dual Core depends on the laptop. Even with a Bios update it might well only accept Core Solo cpus.

I'd still say it was worth upgrading to a Core Solo for slightly better performance and speedstepping which will give you better battery life and cooler running.

 

I tried a upgrade from a 420 1.6 celeron m on the travelmate 2480.

With the latest bios a core duo 1.6 didnt post.( not core 2 duo)

Black screen. I imagine it is incompatible.

Any successful upgrades?

I use this as my work laptop. Seems silly to use a celeron M for an upgrade.

I had a core duo from another upgrade. I may have to trade it if anyone can confirm it worked.

 

While the GL960 has a good track record of supporting officially unsupported processors, I haven't heard much of the same concerning the 940GML, so I'd imagine you've run into an incompatibility issue. Officially the chipset only supports Socket M Celerons and Core Solos. The fastest officially supported processor is the 2.166GHz Core Solo T1600.