XFX N780-ISH9 (NVIDIA nForce 780i SLI)
Author:
Date: 08.04.2008 |
|
Overclocking and stability
Now let's look at the power converter. It uses a 6-phase power scheme, in which there are three 1000 mkF, one 470 mkF, and seven 820 mkF capacitors. There are radiator on all the power components.
All the overclocking tools are gathered in the "Advance Chipset Features" section:
First, XFX N780-ISH9 allows adjusting the FSB within 100 MHz to 625 MHz.
We found no features to adjust the multiplier of the HyperTransport bus on the section between the NB and the CPU, but revealed the option to adjust the multiplier on the section between the north and the south bridges (in both ways).
If needed, the user can adjust the HT bus speed on this section (within 200 MHz to 500 MHz).
It is also possible to adjust the PCI Express bus speed within 100 MHz to 200 MHz (in 1 MHz increments), but for some reason - only for the second (central) PCI Express x16 slot.
If necessary, the user can change the processor's multiplier (which is locked towards the increase in all Intel processors):
The next feature allows adjusting the CPU voltage (Vcore) within 0.5V to 1.8V in 0.00625V-0.0125V increments.
The next feature raises voltage on the memory modules:
The adjustment range for Vmem is rather wide (from within 1.8V to 2.5V in 0.025V increments). There is also a couple of useful features for adjusting voltage on the chipset. The voltage adjustment range on the north bridge is within 1.3V to 1.55V in 0.05V increments:
The voltage adjustment range on the south bridge is is within 1.5V to 1.75V in 0.025V increments:
Then, XFX N780-ISH9 allows adjusting voltage on the HyperTransport bus within 1.2V to 1.55V in 0.05V increments:
Besides, the user can adjust the CPU VTT voltage within 1.2V to 1.5V in 0.1V increments:
Finally, there is a feature for adjusting the MCP Aux voltage within 1.5V to 1.7V in 0.1V increments:
Now on to the practical overclocking.
Without any issues we attained 530 MHz, whereas 500 MHz was possible to attain through only adjustment of the FSB speed. That became possible due to the fact the at 400 MHz the motherboard itself raises all the required voltages. In other words, even the beginner overclocker will be able to attain stable operation at 500 MHz without much effort.
 |
Content: |
 |
|
|
Top Stories: |
|
 |
|
MoBo:
|
|
|
|
VGA Card:
|
|
|
|
CPU & Memory:
|
|
|
