Foxconn A79A-S (AMD 790FX)
Author:
Date: 12.10.2008 |
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BIOS
The BIOS of Foxconn A79A-S is built on the AMI BIOS version.
The extended pack of memory settings is gathered in the "Advanced Chipset Features" section:
The parameters in charge of selection of the memory frequency and the 1T/2T are also over there:
Now move on to the section to do with the system monitoring.
The board keeps track of the CPU's and system's current temperatures, as well as rotational speeds of the two fans. Besides, the user can control the rotational speed of the CPU cooler with the Smart Fan feature.
Overclocking and stability
Now let's look at the power converter. It uses a 5-phase power scheme, in which there are four 330 mkF and thirteen 560 mkF capacitors.
Now on to the overclocking features:
First off, Foxconn A79A-S allows adjusting the HTT speed within 190 to 400 MHz in 1 MHz increments. Secondly, the user can adjust the HyperTransport bus multiplier between the NB and CPU:
Here are the remaining overclocking tools:
| Motherboard |
Foxconn A79A-S |
| CPU multiplier adjustable |
+ |
| HTT adjustable |
within 190 to 400 MHz (1) |
| Vcore adjustment |
within 0 to +0.6V (0.024V); |
| Vmem adjustment |
within 1.776 to 2.64V (0.048V) |
| Vdd adjustment |
within 1.68 to 2.355V (0.045V) |
| Vht adjustable |
within 1.1V to 1.55V (0.03V) |
| Vpll adjustment |
within 2.3 to 3.24V (0.06V) |
| PCI-E adjustment |
within 90 MHz to 250 MHz (1) |
We attained the maximum stable HTT frequency which amounted to 246 MHz:
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