Re: Looking for the latest Acorp 5VIA77 BIOS

Posted on 2023-03-24, 21:39

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Great to hear the A7 BIOS works fine. 😀 I've send it to The Retro Web and it is now available on the Acorp 5VIA77 page as well. https://theretroweb.com/motherboards/s/acorp-5via77 Jan

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Re: Can´t enable Write Allocation on a Soyo SY-5TEO and a K6-2+

Posted on 2023-03-24, 15:49

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello Jan, that would be great! The latest BIOS I found is this one: 5te2.zip Thanks in advance! Hi majestyk, Thanks for the latest SY-5TE BIOS. The patched version of this BIOS is ready and I send you a copy by PM so you can test it. When tested, I will put it on my Unofficial K6-2+ / K6-III+ page …

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Re: Looking for the latest Acorp 5VIA77 BIOS

Posted on 2023-03-22, 13:10

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi watson, Thanks for the link to the Acorp 5VIA77 Rev. A7 BIOS. Back in 2003 I’ve patched the Rev. A5 BIOS for K6plus, WA, and 128GB HDD support. This patched BIOS was successfully tested with a K6-2 and a 40GB drive, but I couldn’t find anyone with a K6-2+/-III+ CPU to test the K6plus support at …

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Re: Evergreen 586 & Biostar MB-1433/50UCV-E

Posted on 2023-03-20, 12:36

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Allright, the Biostar MB-1433/50UCV-E PCB VER:2 motherboard it is! ;) This board is very well suited for the Evergreen586 Am5x86 upgrade kit. You even got it up to 150MHz! The BIOS recognizing this CPU as a 486DX is fine. Because the UM82C491F chipset needs the CPU to run in L1 cache WT mode, …

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Re: Evergreen 586 Troubleshooting

Posted on 2023-03-19, 16:46

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Okay, now you got me confused. ;) You linked to Phil’s page about the Biostar MB-1433 UCV-B/C/D/E board. But earlier you said that you have an MB-1433/50 UIV board… These are different boards that use different chipsets. I believe the 491/493 chipset on the UCV board doesn’t support L1 cache WB. If …

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Re: Evergreen 586 Driver Disk

Posted on 2023-03-19, 12:49

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi sniper257, I found the ET9616.EXE file in my archive! :) Looking at the date/time stamp on this file, I must have downloaded it in April 1997 when I was researching the various Am5x86 upgrade kits for my http://www.steunebrink.info/amd5x86.htm article. This ET9616.EXE file appears to be a self- …

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Re: Can´t enable Write Allocation on a Soyo SY-5TEO and a K6-2+

Posted on 2023-03-17, 14:30

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

@NostalgicAslinger, Thanks for the heads-up. Yes, I believe I can help with this BIOS. @majestyk, Looking into this 08/21/97 BIOS is see basic K6support, so patching for K6-2/-III/-2+/-IIII+ support is possible. This includes Write-Allocation support for the CXT core. Let me know if you like to have …

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Re: BIOS image collection - requests, discussion etc

Posted on 2023-03-16, 22:35

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi Mamba, Awdbedit is a nice program to view various Award BIOS details, but it still has bugs and can produce a corrupted BIOS when saving changes. I prefer the good old MODBIN V4.50.82a DOS tool from Award for editing the Setup menus of 1997-1999 BIOSes. I took a look at the GA-586DX Rev 2.x board …

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Re: Faulty TMC PCI54PV (VER. 1.2A) motherboard - need help

Posted on 2023-03-15, 15:09

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Half-Saint wrote on 2023-03-15, 13:40: I have an EEPROM programmer so maybe I'll use that to overwrite the original BIOS chip. I don't know why I haven't thought of that. Thanks for the idea 😀 If you read the original BIOS from the EEPROM first and post it here, I can check it for you so you know …

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Re: Pentium-s 166 halts at post screen

Posted on 2023-03-14, 12:28

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Great to hear it works now and that the 60613 BIOS did the trick! 😀 Cheers, Jan

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Re: Octek hippo vl+ 3.02 no POST no Beep no Code

Posted on 2023-03-12, 13:06

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for the BIOS. An MR BIOS, allright! I did various checksum calculations on this 64KB file and the regular 8-bit checksum produced a nice 'zero' result. Then I put the BIOS in 86Box and this is what I got: Hippo VL+ Rev3 MR BIOS.png I also got POST codes, running through the numbers during …

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Re: Can somebody tell me how the clock generator circuit works

Posted on 2023-03-12, 11:23

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I took the bios chip off and read it with my tl866 and it shows data, keyboard controller is showing voltages and no shorts, can't verify signals without a scope. Please put the BIOS dump you made with the TL866 up here. If it is an AMI or Award BIOS, I should be able to tell you if it is valid or …

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Re: Pentium-s 166 halts at post screen

Posted on 2023-03-10, 12:57

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have the .bin file but where can i put it? Its not allowed. I tried it in zip folder but also not possible. I did however try to rom dump it to the retroweb discord server. Its the one with my user name vacatedboat Hope it works. Thanks Hi vacatedboat, Thanks fort he BIOS file. I got it from The …

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Re: Pentium-s 166 halts at post screen

Posted on 2023-03-09, 15:06

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The 35-8212-32 marking cleary identifies your board as a Vtech / PCPartner MB500N. Also both pictures on https://theretroweb.com/motherboards/s/pcpartner-mb500n-35-8212-32 look identical to yours, including the double J6 jumpers and the J38 jumper near the keyboard controller. So the documentation …

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Re: Pentium-s 166 halts at post screen

Posted on 2023-03-08, 14:58

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There are so far subtle differences with the pcpartner mb500n like I have jp38 and its not in the manual. Was thinking of using my meter and buzzing it out. Also j6 only has one row of pins. Mine has 2. With these subtle differences and the hang at POST 63 where all the detected motherboard …

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Re: ABIT AB-AH4 / AB-AH4T Write Back L1 Cache

Posted on 2023-03-02, 19:17

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Okay, this is great news! :) Yes, it makes sense indeed, to connect CPU “CACHE*” to Chipset “PCD” because this chipset pin 118 changes function to “CACHE*” when both DACKs are pulled high. I use the same jumper settings when running an Am5x86 in L1 WB mode on my SiS471 board; - CPU “CACHE*” to …

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Re: ABIT AB-AH4 / AB-AH4T Write Back L1 Cache

Posted on 2023-03-02, 10:52

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Still no luck with AWARD :( I tried version "AH4_J1" and the system hangs right before finishing loading DOS from floppy. This floppy boot hang still looks a lot like a L1 cache WB coherency problem. For the Am5x86, the SiS471 chipset needs to work in the Intel POPD/DX4-WB protocol and this is set …

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Re: ABIT AB-AH4 / AB-AH4T Write Back L1 Cache

Posted on 2023-03-01, 18:30

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi majestyk, In addition to mkarcher’s excellent information, I like to contribute some info about the BIOS on this AB-AH4 board. I’ve looked into your Award 08/30/95-SIS-85C471E/G-2C4I9A12-02 BIOS and found precisely what mkarcher writes: this BIOS has no support for the Am5x86-133 and won’t set …

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Re: Need Help Azza PT-5VMX Motherboard BIOS

Posted on 2023-02-28, 13:58

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi TimWolf, Just use the 07/04/2000 BIOS from https://theretroweb.com/motherboards/s/azza-5vmx-pt-5vmx#downloads I’ve checked this BIOS and it has full K6-2+/K6-III+ support, and also supports drives up to 128 GiB. :) Note that a K6-III+ will be indicated as an AMD K6-III CPU. This is true for all …

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Re: Confused about CPU Speed, Multiplyer and Cache K6 2/2+/3+

Posted on 2023-02-18, 18:57

by

by Chkcpu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just found another K6-2+/570 L2 cache mod video at https://www.youtube.com/watch?v=MFKW55fzDNk At time index 7:40 you can see a 05CC CPUID when the L2 is disabled! Curious, Jan Oh, I think I see what’s going on here. In Fritzchens Fritz example, the 128KB -> 256KB L2 cache mod was already done when …

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