Core i7 2960XM - Alienware M17xR3 - Unstable frequency and low fps in game

[zysmo]

dears, actually i have a modified Alienware M17x R3 with:

- Intel Core i7 Extreme 2960Xm
- Nvidia GeForce GTX 780m 4gb DDR5
- 16GB Ram DDR3

And playin games i saw that the FPS has low performance every some second and using the HWiNFO 64 i see that the CPU is unstable and down from 3,388 Mhz to 797,4 (aprox). Every time that the frequency down i have low fps.
How can i stabilize the CPU frequency?

 

[COLGeek]

It sounds like your system is getting too hot and throttling back to protect itself from damage. How hot is your CPU and CPU at idle and under load?

 

[zysmo]

60º C idle and in facto, also in idle the frequency is unstable, down from 2,691 Mhz to 79h7,4 Mhz every two seconds aprox

 

[COLGeek]

That is too hot for idle. What CPU did your Alienware originally come with?

 

[zysmo]

i don´t remember but it was something like a i7 2xxxx

 

[COLGeek]

It would appear to me that the system's heats ink is just not enough for the hotter CPU.

 

[zysmo]

but what if isn´t the temperature? why i have that unstable frequency?

 

[COLGeek]

Sorry, but heat and power are your problems. The original CPU was a 45w device. The new CPU is a 55w device. The new CPU runs hotter (and faster) and it is more than the heatsink can handle. You can try using a premium thermal compound and making sure your intake and exhaust ports are clean, but I really think you need to go back to the original CPU to have any chance of stability.