Throttle for ALi Aladdin 5 Socket 7 boards

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Throttle for ALi Aladdin 5 Socket 7 boards

Postby gerwin » 2014-3-13 @ 16:23

For the select few who would like to use Throttle on an Asus P5A, Gigabyte GA-5AX or similar Super Socket 7 board: I slapped together this tweaked version of the Throttle slowdown utility. For now I only tested it with a Chaintech CT-5RSA0 board, with a South Bridge labeled M1543 revision B1. With throttling, Speedsys scores as low as 2 points are reachable.

Throttle with ALi Aladdin V patch v0.9
(65.81 KiB) Downloaded 110 times

    Throttle with ALi Aladdin V patch.
    Version 0.9

    Throttle is a computer slowdown utility, It uses the Motherboard southbridge ACPI
    functions to introduce wait states.
    This package allows one to use Throttle on ALi Aladdin V motherboards.
    It comes with the normal Throttle as well, for usage on non-ALi motherboards.
    Just start T.BAT and select the desired amount of slowdown.
    Or pass a parameter to directly select the matching slowdown, without prompt.
    This package is for MS-DOS and Windows 95/98/ME.

    The original Throttle does not work with tested ALi Aladdin V based motherboards,
    such as the Asus P5A, Gigabyte GA-5AX, Biostar M5ALA, Chaintech 5RSA, BCM VP1543.
    There are four parts that needed to be tweaked to make things work:
    - ALi m7101 PMU* needs to be enabled, if the BIOS has not done this already,
    by setting a bit in the ALi m1533 Bridge Device.
    - Unset ALi m7101 PMU registers write protection bits.
    - At every run of throttle, BIT9 of the ACPI I/O space is now set.
    This is just outside of the range of the normal Throttle routines.
    - The ALi 5 Throttle I/O space address register was changed to 0x10h.
    *PMU= Power Management Unit

    ALI5ACPI.EXE - Enables ALi Aladdin V Southbridge Power Management Unit (ACPI).
    ALI5THT.EXE - Modified Throttle specific for ALi Aladdin V Southbridge.
    ALI5.TXT - This text file.
    THROTTLE.EXE - Original Throttle, for completeness.
    THROTTLE.TXT - Original Throttle Text File.
    CWSDPMI.EXE - Required for ALI5ACPI.EXE.
    T.BAT - Run this to automatically select either of the 2 Throttle versions,
    T.Bat is set not to disable L1 cache by default.

    Original Throttle by Jeff Leyda, Dec 15, 2007.
    ALi 5 Specific files by G. Broers, March 2014:
    -ALI5ACPI.EXE Based on PCI.C by Chris Giese.
    -ALI5THT.EXE Based on Throttle assembler source.

    I noticed a nasty lockup when using 'SetMul' to toggle the AMD K6+ multiplier while
    Trottle was enabled. Using SetMul prior to, and after closing Throttle is fine.
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Re: Throttle for ALi Aladdin 5 Socket 7 boards

Postby Jolaes76 » 2014-3-14 @ 16:23

Great work, truly appreciated!

The lack of support for the Aladdin V drove me to buy Bremze (for a GA-5AX) pretty long ago. If only I could spare some time to properly compare Bremze vs your build of Throttle... maybe dropping Mo'Slo Deluxe in the pit as well...
"Ita in vita ut in lusu alae pessima iactura arte corrigenda est."
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