Will this PSU work?

Hello, Im considering upgrading my stock PSU 120W to 180W.
I own a MSI GX660 with a 2.5mm*5.5mm plug adapter, 19V 6.32A.
Would this work with mine? 19V 9.5A AC Adapter Fit Alienware Area-51 m9750 m 9750 - eBay (item 370426645055 end time Jan-27-11 19:03:49 PST)

Considering they got the same plug, but just another manufacter + different ampere for higher Watt?

 

That's a waste of money imo, at least as long the old PSU is still working... You won't gain any performance with a higher rated PSU.

 

Yeah, I know. But I dont think 120W is enough for i7 920XM + 5870 OCd.
I dont wanna buy new cores etc, before I know the psu can handle it

 

The problem is that the maximum power which the hardware can draw is limited by the Mobo, so I really doubt you will have any advantage with a new PSU...

 

Ahh, I see.. but do you think that the PSU I linked is compatible?

 

Well, as long as the connector works it should do the job imo...
For example the Alienware M15x comes with a 150W PSU, but can also be used with the 240W PSU from the M17x... but as I said, it wont draw more power, the only "advantage" is that the PSU runs a bit cooler.. disadvantage is that the PSU weighs more and is bigger.

 

its always better to have a higher wattage PSU.. Like in the G73 , the 150W PSU is actually not enough... on heavy load , it almost draws 170-180W so the Targus Universal PSU runs cooler and is actually better.. i don't see why the PSU you have chosen doesn't work but its better not to mix brands... try looking for a universal PSU like the targus.. it has a lot of tips so it might work.

Panther214

 

You're not 100% correct...

Since we're giving examples and the OP has an MSI laptop... look at the MSI gx620. Comes with only a 90w adapter because it has a 9600m GT, but of course, you can put some powerful 75w cards in it and you need a 120w adapter.

Just because other notebooks aren't as cool as MSI and don't use the same motherboard for midrange and high end models doesn't mean that this doesn't apply.
Overclocking and upgrading beyond specification is all about excess, just think about it. if all chips were actually running at their operating limit in your notebook it would not only be a pain in the for manufacturer, but nothing would be overclockable at all unless you downgraded the part first or something.
Voltage ICs are not chips that have been excluded from this theme of excess in manufacturing. They could be the same used in some desktops, for all we know.

So, yes it is worth it to get a better adapter sometimes. Otherwise, if you are overclocking and your notebook shuts off because it is drawing too much power, you have no way of knowing if it is in fact your adapter acting up with safety functions or if it really is the limit of your voltage IC.
Check out this adapter http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=390255156413&ssPageName=STRK:MEWNX:IT I just bought one.