90W vs 65W power supply for Dell laptop?

I want to buy a Dell Vostro 1510 at the following specs.





Intel庐 Core鈩?2 Duo Processor T5670 (1.8 GHz, 2 MB L2 Cache, 800 MHz FSB)


Memory 2048MB (2x1024) 667MHz DDR2 Dual Channel


Video Card 256 MB NVIDIA庐 GeForce鈩?8400M GS (64 bit)


Hard Drive 160GB (5400rpm) SATA


Optical Devices Fixed Internal 8X DVD+/-RW Slot Load Drive


Wireless Networking Dell鈩?Wireless 1395 (802.11 b/g) MiniPCI Card


Cables 1 Meter Power Cord (3 Wire) - UK





The graphics card is an upgrade from the original option of IntelJ Integrated Graphics Media Accelerator X3100.


When I choose to upgrade it gives a message saying the 65W power adapter is not compatible and I need to change to a 90W.


I do a lot of travelling and don't want to be carrying around a massive power adapter so I was wondering if I stuck with the smaller 65W adapter, would I run into issues?
90W vs 65W power supply for Dell laptop?
Graphics cards are one of the biggest power consumers in a computer. I imagine that if they force you to upgrade to a larger power supply it's for a reason. You could try it but it's possible you could damage your computer, and most likely you just wont have any video.
90W vs 65W power supply for Dell laptop?
Same lines as what Jstep said, you need the extra power to run the PC with the hardware you have selected. If you aren't doing anything graphics intensive (heavy video or games) I would stick with the integrated graphics. Otherwise you might look for the more power friendly line of processors, they will be the T8xxx series and the T9xxx series. The former being a bit slower, but more power friendly.