i7 920 overclocking thread

[AJLarson]

Can someone explain QPI on the i7 cores?

[XFreeRollerX]

try it

[zlojack]

Originally Posted by {core2duo}werd

that's disabled, but that has been there since the late p4 days. i asked Asus when i called and they said that was not the option i was looking for anyways.

Hrm...ok.

(I don't have the board, just asked someone who does.)

I guess I'll find out later this week.

[bowman]

Originally Posted by AJLarson

Can someone explain QPI on the i7 cores?

You mean the base clock which a lot of people illiterately call the 'QPI clock' or the QPI system bus?

Base clock (the 133MHz figure): http://en.wikipedia.org/wiki/Reference_clock

QPI link: http://en.wikipedia.org/wiki/Intel_Q...h_Interconnect

[CDMAN]

Nice work man. I was thinking of going to water cooling, but I see that your temps are just about what I have at 4.1 so I may hold off if I done need to. I will take a reading tonight at 4.4 to see what my temps are.

[XFreeRollerX]

That picture is horrible dude post it in a better res. I cant read anything on CPUZ

[Toonshorty]

I can, but only just. I think thats 4.1GHz.

[bowman]

Originally Posted by XFreeRollerX

That picture is horrible dude post it in a better res. I cant read anything on CPUZ

1.448V, 4142.7MHz, multiplier x31, refclock 133MHz, QPI link 3207.5MHz

[gooddog]

Careful on voltage.
The new max is NOT really 1.55. That is the absolute max voltage. See quote below.

It is around 1.375.

1.55 is the voltage after which you may not recover, even when you drop the voltage below 1.375 again.

From the PDF
http://download.intel.com/design/pro...hts/320834.pdf

Table 2-6 specifies absolute maximum and minimum ratings, which lie outside the
functional limits of the processor. Only within specified operation limits can functionality
and long-term reliability be expected.
At conditions outside functional operation condition limits, but within absolute
maximum and minimum ratings, neither functionality nor long-term reliability can be
expected. If a device is returned to conditions within functional operation limits after
having been subjected to conditions outside these limits, but within the absolute
maximum and minimum ratings, the device may be functional, but with its lifetime
degraded depending on exposure to conditions exceeding the functional operation
condition limits.
At conditions exceeding absolute maximum and minimum ratings, neither functionality
nor long-term reliability can be expected. Moreover, if a device is subjected to these
conditions for any length of time then, when returned to conditions within the
functional operating condition limits, it will either not function or its reliability will be
severely degraded.
Although the processor contains protective circuitry to resist damage from Electro-
Static Discharge (ESD), precautions should always be taken to avoid high static
voltages or electric fields.

[zlojack]

So basically, this is the 1.45v limit that the Penryns had.

1.36 were "operation condition limits" and 1.45 was absolute maximum (though a lot of people went up to 1.4v+ for 24/7 and were fine)