1.Внимательно читаем!2.Причём здесь чипы памяти?

FX Core Slowdown temperature:
-----------------------------------------
You can edit the temperature threshold at which the core
slows down here, for GeforceFX and early Geforce6 cards.

Core and Ambient thresholds:
--------------------------------------
These are the threshold temperatures found in new Geforce6
and 7/8 series cards.
The threshold temperatures are used by the driver to protect the
card from overheating.
There are up to three levels of threshold defined in a BIOS:

- Critical threshold
When this limit is reached, the card is drastically slowed down to
bootup clock speeds, until the next reboot.

- Throttling threshold
When this limit is reached, the driver forces the card into a lower
performance level.

- Fan boost threshold
When this limit is reached, the driver forces the fan to run at
100%

Typically the order of threshold temperatures is
critical>throttle>fan boost (critical=highest temperature, fan
boost= lowest)
But it may also occur that this order is not met, this is to 'disable'
some threshold levels.

Fan speed:
---------------
Here you can edit the fan speeds for different performance
levels.
These values can be used by the driver to set fan speed.
They may have no effect on fan speed if the card uses driver
independet fan speed regulation.

Enable 6600GT temp monitor trick:
---------------------------------------------
This box can enable the temperature monitoring on some cards.

Disable temp. monitoring:
---------------------------------
This box can disable the temperature monitoring on some cards.

Fanspeed IC:
------------------
Here you can edit some of the initialization parameters for the
fanspeed regulator ADT7473 found on newer Geforce8 cards.
On some cards (8600s) you may find the parameters, but
the card not physically having the regulator.
For further understanding of the parameters refer to the
ADT7473 datasheet.

Compensation:
-------------------
This value compensates for differences in core temperature
readings along different boards. It is added to the original
temperature reading and this value is then reported as
the current temperature by the driver.
Since 3.8 this value is also used in the calculation of fan
speed IC settings.

Что за Thrtl

Once you’ve backed up the BIOS settings, you can change them. The default tab shows four different sets of frequencies – "Extra," "3D," "Throttle" and "2D." 3D and 2D need no explanation, but Extra and Throttle are more mysterious. Throttle designates the frequencies the GPU is to drop to when it detects a temperature that’s too high. Extra is in fact a new mode introduced by Nvidia with the GeForce 8 series, which made the preceding ones obsolete. It’s because of this Extra mode that the latest GeForce 8s no longer automatically change their frequency for 2D and 3D. Of course we tried to get around that. First we tried adding 2D frequencies in addition to Extra, and then even deleting the "Extra" frequencies and replacing them with 2D and 3D frequencies, but none of those tactics worked. The card kept operating at the "Extra" frequencies all the time.

http://www.tomshardware.com/reviews/ove ... 916-6.html