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Underclocking Pentiums?

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Reply 20 of 22, by 5u3

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h-a-l-9000 wrote:

You can play Wing Commander 1 on a 500MHz PC, provided you put in an 8-bit VGA card, preferrably one without memory FIFOs.

Heh... Perfect task for those Trident 8900 VGAs - you can't go much slower than that! 🤣

Reply 21 of 22, by gerwin

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MartinC wrote:

CPU-Z Lowest Frequency Reached :
* Nº 1 : viili reached 8.18 MHz with an AMD K5 (0.0 µm)

Details

MB : Asus P/I-P55TVP4 (Intel i430VX rev 02) - RAM : 32 MB
* Nº 2 : Szpecu(ocsystems.org) reached 10.19 MHz with an Intel Pentium (0.35 µm)

Details

MB : ALADDIN5 (ALI Aladdin 5 rev 04) - RAM : 256 MB
* Nº 3 : trodas reached 10.74 MHz with an Intel Pentium (0.35 µm)

Details

MB : Asus TX97-XE (Intel i430TX rev 01) - RAM : 64 MB
* Nº 4 : WoOx3r[Pt] reached 10.82 MHz with an AMD K6-2 (0.25 µm)

Details

MB : ALADDIN5 (ALI Aladdin 5 rev 04) - RAM : 128 MB
* Nº 5 : Supercoolin86 reached 15.4 MHz with an Intel Pentium (0.35 µm)

Details

MB : Asus TXP4 (Intel i430TX rev 01) - RAM : Hyundai Electronics 64 MB

I don't know what they did, but in most of these results both the FSB speed and the CPU multiplier read zero. How did they do that? Did they load windows first, then pull the FSB to zero? or is it just a fake reading...

h-a-l-9000 wrote:

You can play Wing Commander 1 on a 500MHz PC, provided you put in an 8-bit VGA card, preferrably one without memory FIFOs.

That is a cool idea.... 🙄

Today I disabled the L1 cache on my Pentium III-S system that currently runs at 1045MHz/110FSB. It gets benchmarks and game-performance a little faster then a 386DX-20+387. 😀

Reply 22 of 22, by gerwin

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gerwin wrote:

I don't know what they did, but in most of these results both the FSB speed and the CPU multiplier read zero. How did they do that? Did they load windows first, then pull the FSB to zero? or is it just a fake reading...

By accident I stumbled upon this: Story behind the 10.74 MHz CPU-Z score As submitted by trodas.
Summary: Asus TXP4-X Mainboard, Socket 7, Intel 430 TX chipset. Pentium 90 CPU at 1.5x locked multiplier, FSB set to 7.14Mhz with jumpers.