Asus M4A89GTD PRO/USB3 Review
The Asus M4A89GTD PRO/USB3's BIOS has very much in common with it's predecessors. The structure of menus are suitably intuitive even for those who are less familiar with BIOS in general.
The BIOS offers just about all the parameters you will need for a successful overclock.
As per usual with an AMD based system, we wanted to determine the board’s overclocking ability in terms of both Maximum HTT Base frequency and Maximum CPU Northbridge frequency. On the basis of what we attained with those parameters, we will then try and determine the best compromise between them and overall CPU frequency.
Maximum HTT & Northbridge Frequency
As per usual, we began our overclocking adventures by dropping memory frequencies, HT Link and CPU multipliers then raising base HTT frequency. With our particular AMD Phenom II X4 965 C3 Black Edition processor, we were expecting to run into trouble at around 240-250HT but we didn’t. Infact, we were left feeling very surprised as the motherboard successfully booted into windows with every 5MHz increment. All in all, our journey ended in BSoD glory at no less than 350MHz Base HTT. We were able to verify our Maximum Stable HTT just 10MHz shy of this and with a CPU Northbridge Frequency of 2720MHz.
I would also like to take this opportunity to point out that this was achieved at default voltages.
Maximum CPU Overclock
Based on our findings, we decided to operate our AMD Phenom II X4 965 at a resultant frequency of 3885MHz, with a Base HTT of 242MHz, a Northbridge Frequency of 2640MHz and a memory frequency of 1604MHz. This will be our overclocked parameters for the following benchmarks.