The ASUS P5GDC-V Deluxe BIOS and Overclocking
The BIOS of the ASUS P5GDC-V Deluxe came pretty well equipped. ASUS included enough tweaking options to keep you busy for a while. With the main focus being overclocking, ASUS offered several takes. The first option is the AI NOS which adjusts the system speeds on the fly based on profiles. This is a good novice option or a way to get a little boost without locking your system into a set clockspeed. The other option is to roll up your sleeves and do it one setting at a time. Naturally, we chose to focus on the latter.
For starters, the FSB had a very broad range from 100-400MHz. 400MHz seems a bit lofty in our opinion, but dare to dream. The memory could be set to run at 333, 400 and 600MHz or by AUTO. The PCI-E Frequency was also adjustable, ranging from 90 to 104MHz. Memory voltage could be adjusted from 2.6 through 2.9v in increments of .10, while the chipset could be set for 1.5 or 1.6v. The CPU voltage ranged in .025 increments from 1.525 through 1.7v, giving a minute set of adjustments for fine tuning.
The Memory Timings were in line with what we would expect, allowing for manual settings or BY SPD. The CAS latency could be set to 3, 2.5 and 2, whereas the Precharge and RAS-to-CAS ranged for 2 to 5 in increments of 1.
As a whole, the BIOS that came with the P5GDC-V Deluxe was fairly robust, offering a good selection of adjustments for fine tuning the system to your liking. Next, we'll put some of these settings to the test to see how the system faired in the overclocking arena.
When it came to overclocking the ASUS P5GDC-V Deluxe, the process was quite easy. Starting out at 200FSB, we moved forward in big chunks each time, first to 225MHz, then right to 250MHz. As it turned out, 250MHz was the peak for this board, or perhaps even a limitation of the CPU. However, the P5GDC-V pushed our 3GHz processor up to an impressive 3.75GHz. With our DDR memory, we had to reduce the divider, resulting in the memory running at 416MHz, for a gain of 4%. In the end, we managed decent gains with Wolfenstein:ET, climbing from 116 to 126FPS. With UT2004 we posted a nominal gain of 2FPS from 69 to 71.