I7 2760qm performing poorly - HELP

Hi all,

I have just upgraded my Asus U46SV from an i5 2410m to an i7 2760qm. I have been performing a number of benchmarks and all of them seem to be coming out low. One thing I have noticed is when all cores are stressed using Prime 95 instead of it running at 2.4GHz (100 x 24) it runs at 2.1GHz (100 x 21). The turbo boost seems to work ok when one core is stressed but its really doing my head in.

HELP!

What were your previous scores (and with what), and what do you get now?

Your GPU in that laptop is quite weak BTW.

Your laptop also seems to be smallish - 14". Does it seem to get really hot with your new chip?

In your task manager in performance tab - do you see 4 "CPUS" or do you see 8 "CPUS"?

ASUS U46SV specs
Only dual core CPUs were on the spec sheet for this model.
Did you find an outside source that led you to think i7 2760QM was a compatible upgrade?

So whats the problem? Your new processor probably won't be able to do much more than your old one as programs still don't really take advantage of more than 4 cores.

For video editing - encoding depending on the program you might see an advantage with your 4 core + 4 thread CPU (for 8 threads).

Everything else will probably be about the same.

Have you been monitoring your temps?
What were they when you were running Prime95 x4?

the chances are that the thermal limits of the old cpu's hsf have been reached causing your new cpu to throttle. its only worth upgrading a laptops cpu is the new chip doesn't run as hot as the old. why? because laptops are built to specific tolerances for heat dissipation... thats why most lappys tend to slow down to a crawl after 6 months or so as the accumulate dust, causing them to throttle... there are some thing that you can do to help this...
1) use higher quality paste, good paste can enable faster transfer of heat leading to lower overall temps... thus bringing the new cpu in line with the old for heat dissipation.
2) try to fit a compatible higher tolerance heatsync for the new chip... you may get lucky and find theres enough space to fit a larger 1.
3)if you can go into bios and reduce the voltages a little on the new cpu. with luck it will lower temps to withing the hsf's thermal envelope while maintaining stability.

To add to HEXiT's options list:
See if you can change your cooling fan's speed profile.

Alright try these as well in addition to hexic's and WR2 reccomendations:

http://www.intel.com/support/detect.htm

Download the latest INF drivers by using the detect, you have the HM65 Express chipset. If it finds a new INF - install it.

Is your BIOS up to date?

http://support.asus.com/Download.a [...] &p=3&s=342

In your BIOS - does your BIOS have the options for Turbo boost? For example - mine has "normal" and "turbo" options. Try the other one if it does.

For your RAM, is it 1 stick, or 2 sticks (this can possibly be important)?

One last thing...most likely won't work though, and you have to be willing to try it out.

Not sure how hard it is to take apart your laptop, but have you tried taking out the CMOS battery for a good 1/2 hour? You would have to take out the laptop lithium ion battery first, then hold down your power button for 15 seconds to drain any risidual power.