VIA C3 Samuel 2 step 1+: 3.0x to 12.0x, 16 choices VIA C3 Samuel 2 step 0: 3.0x to 8.0x, 11 choices VIA C3 Samuel 1: 3.0x to 8.0x, 11 choices This table shows the available options for each supported processor: For example: 66 MHz FSB times 5.5 = 366 MHz. The resulting net processor speed is the Front Side Bus speed times In all cases it is about temporarily decreasing the processor multiplier by VIA/Centaur called this feature Longhaul, but later renamed it to PowerSaver. Intel called this feature (Enhanced) SpeedStep. 'mobile' processors specifically aimed for laptops, which had a new feature to Without any means to adjust this through software. Originally a classic Pentium processor multiplier was set through jumpers,

Having a means toĪdjust the processor speed is important for making a system suitable for a While other software benefits from increased CPU speed. Many DOS game and programs have issues with a CPU speed higher then expected, In addition it can enable and disable processor The main purpose of this program is to quickly change the multiplier of VIA C3Īnd AMD K6 Mobile x86 processors in MS-DOS and Windows 9X. Broers 2014, 2015 - Free for non-profit use. SetMul v1.2 - Multiplier control for VIA C3, AMD K6 Mobile and Cyrix 5x86 With the K6-2+ and K6-III+ only MXK6OPT worked for me under DOS. Under Windows you can use CTU, this is a very powerful tool with some other tweaks. The first is easier to use, the latter has more options to configure. With the K6-2, and possibly K6-III, under DOS you can use MXK6OPT or SETK6V3. Performance of DOS 320 x 200 games didn't improve and Windows 3D games such as GLQuake, Incoming or 3DMark2000 saw a measurable, but small, performance improvement. This was quite confusing at first and I tried various motherboards and other components.Īfter enabling Write Combining I saw a significant boost in DOS VESA games, such as Quake, Duke Nukem 3D or PC Player Benchmark at 640 x 480 resolutions. What we found was that some of these tools below, only worked with the regular K6-2, and possibly the K6-III, but not with the mobile CPUs, the K6-2+ and K6-III+. A friend who has a vast knowledge about the more technical aspects of computing, helped me with getting write allocation and write combining working on the AMD K6-2 processors.

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