scouser321

iTrader: (1)

I have a Acer 7738g laptop.

Spec was:
17.3 inch HD LCD, Core 2 Duo T6600 , 4GB RAM, 1TB HDD, NVIDIA GeForce GT240M (1GB), Windows 7.



I have decided to swap the cpu for a Intel Core 2 Quad Q9000, which i put in to the laptop last night.

I have put the machine back together again and now when i start the laptop up, it POST's and then i get an extra beep. The extra beep now switches off the LED that indicates the power is connected.

The laptop gets to the desktop and is running on battery power. If i unplug the charger and plug it back in.. nothing. No LED, still running on battery power.

If i switch the charger off at the mains and back on again. The charger is briefly recognised for between 10-20 seconds and then goes off again.

If i power down the latop and plug in the charger, it will charge the battery as long as i dont power it up. If i unplug the battery i can run it on the mains for as long as i like.

I know the Q9000 is compatible as the Acer Aspire 7738g was produced with both the T6600 and the Q9000.

The only thing i can think of is maybe the laptop is now asking for more power than the charger can give it?.

Maybe the charger given with the 7738g with the Q9000 from factory was more powerfull?

Any help on this would be appreciated.

brendy76

iTrader: (6)

double check that the motherboard has the correct firmware for the faster cpu, also, make sure that your revision of cpu has the same fsb etc.

scouser321

iTrader: (1)

I will check if there is a bios update, there is a difference in FSB Speed.

T6600:800MHZ
Q9000:1066MHZ

Lee

brendy76

iTrader: (6)

Apparently there are two models of motherbord, the dual core one doesnt look to support the quads, especially with the faster fsb. Double check with Acer support though.

jaytc2003

iTrader: (1)

as above. It is misleading when they produce the same model number but with different specs. Its similar to some versions having dedicated graphics and others not (I found this with acer) Most of the internals between models are totally different, if the processor was to a new dual core then it would probably work, but different cores sometimes mean different fsb, have different power requirements etc.

I would open it back up again though to make sure everything is still connected where it should be. My old acer 6935g had lots of little connectors that was easy to damage. Funnily with the 6935g and an older acer 5612 both suffered from power supply problems (down to the jack on the motherboard coming loose - both had different designs as well)