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DFI AK-74AC KT133A Motherboard Review

DFI AK-74AC KT133A Motherboard Review - PCSTATS
Abstract: DFI has released a series of Socket A boards based on the VIA KT133 and the KT133A chipsets the past few months. These being the AK74-SC, the AK74 EC and the AK74-AC. Although these boards look almost identical, they have some very significant differences.
 85% Rating:   
Filed under: Motherboards Published:  Author: 
External Mfg. Website: DFI Jun 26 2001   P. Masrani  
Home > Reviews > Motherboards > DFI AK-74AC

Winstone Performance

We used Business Winstone 99 and Content Creation Winstone 2000 to evaluate the performance of the tested boards. Winstone 99 (Business Winstone 99) v1.2 is used to test the overall business performance of the computer system by using applications such as MS Office 97, Lotus Smartsuite 97, etc. Content Creation Winstone 2000 is a system-level, application-based benchmark that measures a PC's overall performance when running today's Windows-based Internet content creation applications. The test focuses on top-selling Internet content creation applications. Each test was run 3 times with the result being the average value of the 3 test runs. Higher scores indicate better performance.

The AK74-AC offers excellent business performance, especially on Business Winstone 99.

Gaming Performance

In terms of gaming performance, the tested board stays close to other top performers.

Sound Quality

Sound reproduction of the integrated AC97 CODEC is adequate enough only for low priced PC speakers. There are a number of details we observed with sound quality: there's background noise and interference in medium to high volume levels. Bass output didn't fare to well either considering its rather weak response.

For simple purposes, the on-board CODEC should perform quite well. If you take your sound even somewhat seriously, it is best that you go in for an add-in PCI sound card.


While the tested board lacks the presence of multiplier adjustments, overclocking is very easily done through the CPU FSB jumper. By setting this jumper, we were able to obtain a healthy 133MHz FSB straight away.

The board remained rock stable up to the 140 MHz mark. In effect, our Duron 600MHz chip reached a pretty healthy 840MHz and ran stable at this speed. Not bad for overclock without multiplier adjustments.

Although this board does not permit for more than a 0.1 volt increase over normal voltage, in most cases this should not be a limitation while overclocking. Naturally, further voltage adjustments could be applied by shorting the CPU bridges but this is just something that some people are simply afraid to do.

Here are our AK74-AC & overclocked Duron scores.

DFI's AK74-AC outperforms Soyo's offering in Quake III by 4% and in business Winstone 99 by a small margin as well.

The DFI AK7-AC proved to be a rather nice surprise. This product gathers everything from what one can ask for: a solid and stable platform, feature rich and great overclockability for a board without multiplier adjustments. The support of 133MHz FSB processors allows all users to easily overclock their chips without any hardware modification and allows installation of AMD's future processors equipped with a 133MHz FSB as well. While DFI focused on making this product a very stable platform for mainstream use (they have obtained AMD's certification for this board), their choice of the KT-133A satisfies a few overclockers as well.

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Contents of Article: DFI AK-74AC
 Pg 1.  DFI AK-74AC KT133A Motherboard Review
 Pg 2.  — Winstone Performance

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   12 / 15 / 2018 | 10:24PM
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