Overclockability is going to depend completely on your CPU. Unless you have an unlocked multiplier, or can unlock the multiplier on your Athlon, your Iwill XP333R is just a mediocre overclocker. This is because the only way you are going to increase the speed of your CPU, if you cannot change your multiplier, is to inch up your front side bus.
The only saving grace that the Iwill has in this category is the fact that if you have a FSB that causes the PCI bus to run beyond the capabilities of certain PCI cards, the Iwill will allow you to manually knock down the PCI bus speed.
Of course, once the problem in the BIOS concerning running the RAM asynchronously with the CPU bus is solved, there will be one more notch in the XP333R's belt to attest to the overclockability of this board. Although I can't say exactly how much the performance increase may be, I would venture to guess that it may be an average of 4% just as we saw when PC133 RAM started running asynchronously on 100 MHz system bus Athlon systems when the first VIA chipsets for the Slot A came out.
The Iwill XP333R was an all around great motherboard to play with for a week. The pros far, far out weighed the very, very few cons.
As stated throughout this review, the board features a 3-phase voltage regulation, 166 MHz FSB (the FSB is actually adjustable up to 233 MHz in the BIOS), easy multiplier adjustment, easy core voltage adjustment, an adjustable PCI bus divider, ATA133 a RAID controller that can be used to either stripe drives or add an additional pair of IDE controllers, and 6 channel on board sound that, for some, eliminates the need to install a third party sound card.
The only "cons" where menial at best. Sure, the board has only two fan headers. I admit that this bothered me somewhat. But, the location of the floppy controller and the lack of an AGP retention device were nothing to me. The "problem" with running the memory asynchronously causing the PC to run slow is just a BIOS program limitation and not a chipset limitation, so this isn't a strike against this board.
So as you can see, this board made quite an impression. And if you could not tell from my last two reviews (the Kinyo speaker set and Targus Handcam), I grade on a very tough scale. But this board is going to have to receive the first Editor's Choice that I have ever given. I'm giving this motherboard a 9.5/10 faulting only the aforementioned cons as reason for not giving it a perfect 10.
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