Overclocking and Conclusion
Well, EPoX sure doesn't disappoint in the benchmarks or the overclocking arena. First off, we will give a run down of the overclocking.
Like the EPoX 4SDA+ motherboard, you have the option to change just about every voltage and option on this board through the BIOS. CPU Ratio is selectable if you have an unlocked P4 CPU (doubt many of us do). The major overclocking component is the ability to change the FSB in 1MHz increments. This is pretty much the requirement to make any kind of overclocking board, 1MHz steps allows you to get the most out of the CPU without having to deal with pre-defined FSB settings. The FSB of the 4BDA2+ was amazing! We were able to set our P4 2GHz's multiplier back and raise the FSB all the way to 168MHz. Not to shabby for a P4 system.
Vcore settings are another major requirement for any good overclocking motherboard, and this one is no exception. Allowing you to set the voltage from 1.1v all the way up to 1.85v in 0.025v increments this makes for better overclocking, and this board isn't limited to the Northwood 1.6v limits. We set out Northwood 2GHz to 1.85v and tested with a multimeter and software, and yes, the CPU was getting the 1.85v. DIMM voltage for DDR memory while not super necessary is a welcomed feature. This allows you to change the voltage supplied to the DDR SDRAM modules. EPoX allows you to set the DRAM voltage from 2.5v up to 2.9v; good enough for the reasonable overclock. AGP I/O voltage is extremely important if you have high speed AGP cards like Geforce3 or Geforce4 video cards and want to run the FSB well out of specs. EPoX allows you to change the AGP voltage from 1.5v up to 1.9v.
In the end, the EPoX 4BDA2+ is the ultimate i845 motherboard. While lacking some of the newer features we have seen from other companies such as Flash media readers and USB 2.0, it does have what is needed to make a good system. Overclocking, RAID and above all super stability under pressure.
Designed for the most hardcore of users the 4BDA2+ is a welcomed edition to the TweakTown fleet.
Most overclockable i845D board to date
No USB 2.0
Rating - 9.5/10 and TweakTown's Editors Choice Award
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