Alienware M11xR2 performance

Are you in stealth mode? This is the usual course, when i first got my m15x i must have accidently pressed the stealth mode button on the touch controls and everythings performence went aweful. If not then temperature will be the issue, the cpu may be throttling down to try and cool down. Im getting the problem with temperature at the moment and immtrying to get it fixed.

Thanks for the suggestion.  The M11x doesn't have touch-sensitive buttons on the top so don't think that's a problem.  However, I don't even know how to turn stealth mode on or off but don't think it's on stealth mode on at the moment...

AFAIK, there isn't a 'stealth mode' on an M11x.

Do you have your system overclocked in the bios?  That might help.

Assuming you did a spyware/virus scans as well, right?

I had it overclocked to 160 before which was stable but didn't seem to help.  I did spyware and virus scans as well.

Thanks for the advice.  Hopefully I can get some response from Alienware directly or I will just reformat my computer or something.

I'm just wondering how you was able to get a m11x with a regular intel core i5-520m and not the lower voltage ones the usually comes with them. I have a

m11x-r2  i7-640um over clocked at 167 and I play SC2 at extreme settings with no lag at all. Something is definitely not right with your setup.

I checked computer properties and have a Intel Core i5 U520 1.07 GHz.

I guess I will call support to get this worked out.  My roommate plays at better setting on his old Thinkpad T400, which is what I got rid of to get this computer :(

I'm having a similar issue with my M11xR2.  About a month ago it started stuttering and lagging while playing games.  Now stutters every 3-5 seconds, and makes it unplayable.  I've called AW, and the only suggestion was "reinstall windows."  So after backing up everything, reloading windows, reloading drivers, reinstalling a game or two...it still happens.  No matter what game I play, SC2 or Tropico 2, it stutters right from the start.  I can still watch DVDs, Skype, check the Internet, play music and so on.  Only games.  Still no solution.

Perhaps its you motherboard- I understand that Quite a few R2s have issues with their motherboard.  Mine was delivered new with a faulty motherboard, it would not play any games, with Dell Graphics drivers it just froze and with Nvidia drivers ( from NVidia's site ) I got blue sceens.

It took me several weeks to convince Dell that I had a hardware problem- they blamed everything else but!!

They have now replaced the motherboard and it works fine, I can even overclock the CPU, which just made the situation worse before!!  I know that some people have downloaded GPU overclocking software from EVGA and UNDERclocked the GT335 card- in fact I did this on my old motherboard and by reducing the clock speed from 450 to 400 it played games fine, but a bit slow!!  I think you should try both the latest GT335 drivers from Dell, and from Nvidia and see what happens.  If you get any blue screens then this will create a minidump file that you can send Dell ( attach the file to an email ) and they can analyse it to see whats wrong ( thats what I did ).  It seems that some people are getting a good motherboard with no problems and others are not.  If you can get Dell to replace your motherboard then this should sort all your problems out.  It seems that Dell know about these faulty motherboards.  I believe it is a power issue, not enough is getting to the graphics card, and overclocking the CPU just makes the situation worse by draining more power!

I've even read answers from Dell technicians who say 1. never overclock the CPU when gaming, and 2. never play games on battery power! M11x R2 i7 U640 320gb HD 4GB ram.

I would reinstall the OS. Just clear it all out and start from scratch.