Re: Searching for redemption with my LS-486e (need help with MB repair)

Posted on 2020-07-19, 14:45

by

by gerwin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Finally installed the D45H8G as the voltage regulator chip. Measured Vcc: 3V jumper setting gives 3,40V (both with and without a CPU) 4V jumper setting gives 4,14V (only tested without CPU, this is WITHOUT modded resistor) 4V jumper setting gives 3,56V (only tested without CPU, this is WITH modded …

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Re: Doom 'MBF' for DOS, Maintenance release 2.04

Posted on 2020-06-20, 21:36

by

by gerwin

in Release Announcements

in Release Announcements

Thanks for the effort, and for sharing. Can you also provide the source code please?

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Re: Doom 'MBF' for DOS, Maintenance release 2.04

Posted on 2020-05-03, 19:28

by

by gerwin

in Release Announcements

in Release Announcements

Original Doom had only one graphics mode to support. MBF has VGA 320x200, Mode-X 320x200, VESA 320x200 and 640x400 with different methods of paging. MBF 2.04 has routines for transferring complete screens to video memory in these modes, and it requires different code in each case. MBF 2.04 does not …

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Re: Doom 'MBF' for DOS, Maintenance release 2.04

Posted on 2020-05-03, 17:37

by

by gerwin

in Release Announcements

in Release Announcements

Yeah. Add the "universal read-from and blit-to screen procedure" by writing code from scratch. For every mode. Thus expanding VGAVESA.C.

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Re: PCEm. Another PC emulator.

Posted on 2020-04-20, 16:53

by

by gerwin

in PC Emulation

in PC Emulation

Thanks for the new version! Much appreciated. As for the disk images discussion. I can access them reasonably well, but would have preferred an image format that does not take up physical disk space for unused/empty bytes.

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Re: ReactOS 0.4.0

Posted on 2020-04-12, 18:00

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by gerwin

in Release Announcements

in Release Announcements

ReactOS 0.4.13 was released on the 10th. https://reactos.org/project-news/reactos-0413-released/

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Re: CPU Cache disabling software?

Posted on 2020-03-06, 02:41

by

by gerwin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Maybe there is a K6-2 specific bug in SetMul that I need to fix... I am looking into this now, though not on actual K6 hardware, but I don't see the problem. Use "SetMul L1D" and "SetMul L1E" to toggle the L1 cache. Without (back)slash in front of the parameter. Text case does not matter. The …

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Re: UMC UM85C418F RAM - 2MB possible + desirable?

Posted on 2020-03-04, 22:06

by

by gerwin

in Marvin \ Video

in Marvin \ Video

Nice card there. So the IDE functionality is actually in that UM85C418 chip. Just a crazy thought: Can it be solder spots for memory to use instead of the two SMD SOJ chips? My card also has solder spots for two types of memory, but they overlap, so that only one type can actually be used.

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Re: Pentium 2 @ 133 mhz project ,done

Posted on 2020-03-04, 18:28

by

by gerwin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Understood, sort of.... When you write: [2.0x was not intended for customer use.] you mean by Intel ? Do you happen to have spec sheets for this kind of multiplier that you can share ? In this older topic I explained the same thing: https://www.vogons.org/viewtopic.php?f=46&t=28279&start=20 There I …

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Re: Pentium 2 @ 133 mhz project ,done

Posted on 2020-03-04, 16:48

by

by gerwin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

@ PARKE / lordmogul / UV: In case L2 cache gets disabled with such a 2.0x Klamath core setup, then the wrong multiplier request signal is being send. There are only two proper request signals with working L2 cache , which I posted earlier. On a jumperfree motherboard the proper options may not be …

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Re: Pentium 2 @ 133 mhz project ,help

Posted on 2020-03-02, 23:05

by

by gerwin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Klamath core CPU multiplier 2.0x with functional L2 cache should be like this: 1-2-3-4 ON-off-off-ON or ON-off-off-off Before i will start messing around :) Do you guys think i can broke something if i try to set some random ratio on this motherboard? Sometimes you get a non-booting combination and …

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Re: Dutch Ziggo webspaces will be closed

Posted on 2020-02-27, 17:14

by

by gerwin

in Milliways

in Milliways

My pleasure. By the way, Ziggo newsgroups services will be shut down as well.

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Re: Are Cyrix 6x86(MX) CPUs multiplier locked?

Posted on 2020-02-26, 16:56

by

by gerwin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

IIRC these MX and MII versions run at their default multiplier and lower ones. Like the 2.5x model above does 2.0x as well. They kinda support 1.5x and 1.0x multiplier, but crap out at bootup when caches are enabled. The 6x86L seems to run fine at 1.5x and 1.0x, with caches enabled. I noticed that …

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Dutch Ziggo webspaces will be closed

Posted on 2020-02-26, 03:00

by

by gerwin

in Milliways

in Milliways

Webspaces that were originally provided to customers of Dutch internet service providers Ziggo will be closed. The target date is april 1st, regardless it does not appear to be a joke. This includes webspaces of Service Providers that were acquired by Ziggo, like Quicknet. To illustrate, this …

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Re: Gigabyte GA-Z77M-D3H 1.1, Intel Core i7 3770K, MSI GeForce 960

Posted on 2020-02-25, 17:28

by

by gerwin

in Marvin \ System Specs

in Marvin \ System Specs

Interesting and well thought out choice of parts there. In several ways similar to the setups which I have at home and at the office. But instead of Z77 these are Gigabyte Z68 models. These come with Etrontech USB 3.0 chip, which is also functional in Windows XP. These Z68 boards are Ivy Bridge CPU …

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Re: CPU Cache disabling software?

Posted on 2020-02-19, 23:01

by

by gerwin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Maybe there is a K6-2 specific bug in SetMul that I need to fix... Until then maybe cacheoff.com works for you. Found here: A question about speed

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Re: Moslo with a Pentium 4? Any experience?

Posted on 2020-02-14, 16:15

by

by gerwin

in Marvin \ Software

in Marvin \ Software

Here is my observation on Throttle, back in 2009, on an i440BX system: (edit: Darn, seems my final verdict there was based on the VIA system) Re: Slowing a 440BX based PC Here is the observation of ux-3, Athlon XP system: Slowing an Athlon based PC - PCI audio causes trouble

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Re: Moslo with a Pentium 4? Any experience?

Posted on 2020-02-14, 15:09

by

by gerwin

in Marvin \ Software

in Marvin \ Software

I know about 'Throttle'. I even modified that program to make it work on ALi Aladdin V chipsets. Throttle is nice to have as an option, but for many games and programs it does not give smooth results: Stutters in framerate and sound output. It is msred.com that is new to me.

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Re: Moslo with a Pentium 4? Any experience?

Posted on 2020-02-14, 14:48

by

by gerwin

in Marvin \ Software

in Marvin \ Software

Revolter wrote on 2020-02-14, 14:38: Of course there are: CPU Tuning, Throttling Admitted, I missed that throttling functionality of the Pentium 4. Will look into it when I have some time.

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Re: Wht's the fastest unlocked PII?

Posted on 2020-02-10, 22:25

by

by gerwin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes what I meant is because I asked two questions, one is missed. Is there a reason to slow down PII to run SVGA games or need more processing power? For several DOS SVGA games; more power will help framerate. See the benchmark table here: https://www.vogons.org/viewtopic.php?f=46&t=28279&start=68 …

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