Re: Configuring a PCChips 486 Motherboard with single banked cache

Posted on 2024-02-20, 22:31

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Alright everyone, Currently I have everything stable but some people were saying I'm losing performance and also asking to see pictures of my cache chips and if my RAM was EDO. I'm attaching my current chipset configuration as well as a picture of my cache chips and a picture of the 32 MB RAM stick …

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Re: Tell about your country

Posted on 2024-02-20, 19:35

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by CoffeeOne

in Milliways

in Milliways

Whenever I read about a country or watch something on it, it usually feels something from the view of a travel agent. Things often feel forced, half-informed, hidden behind scenes. How the country operates on a normal basis, the culture, the behaviour, the food, laws, daily life, etc. from a …

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Re: Integrated Trident TVGA 9440AGi Memory expansion

Posted on 2024-02-20, 19:32

by

by CoffeeOne

in Marvin \ Video

in Marvin \ Video

Thanks guys for all your effort :) i don't wanna waste time, energy asking for a handmade 1mg vram expansion for my PC :D It's strange there's no any info online about this, probably it's based on Olivetti's design... I share the manual where there are the specs, mainboard layout description and …

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Re: Need help with this socket 3 board

Posted on 2024-02-20, 19:15

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I only have one AT keyboard and when I press the escape key on the keyboard in the bios setup like for example, leaving the standard settings menu with the hard disk and such, it already takes me to the prompt save to cmos and restart when i only pressed once on the escape key. I was using windows …

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Re: Cannot enable Write-back cache mode on 486 DX4

Posted on 2024-02-19, 22:29

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks, I just updated the BIOS to the latest one (E5), and now it correctly detects 486DX4 in WB! Now I will have to dig a little bit about L1 and L2 cache settings (WB /WT) to understand which one gives better performance. The board curently has 256kb cache installed and also 32Mb RAM. Any …

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Re: Attempting to add larger RAM support to a 486 board

Posted on 2024-02-19, 21:35

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes 4 X 32M won't work as that's 8 banks of RAM which the chipset doesn't support. 4x64M is only 4 banks of RAM, even if half isn't used because of a hard 128M limit of the chipset. But A11 is needed for 64M SIMMs or they'll be seen as 16M (or not boot if A11 is floating). I am certain a new BIOS …

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Re: My mid-life crisis 486 vintage DOS/Win 3.11 PC buy

Posted on 2024-02-19, 21:20

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So I know its been a long while on my 486 crisis. But figured since I had time I would update everyone if you care :) 1) I upgraded the cpu to a AMD 5x86 133 with a cpu cooling fan with no issue. 2) As last mentioned I got the 1mb chip for the onboard video upgraded to 2 mb 3) I eventually got a …

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Re: Ram Expansion for S3 Virge PCI Card

Posted on 2024-02-19, 21:00

by

by CoffeeOne

in Marvin \ Video

in Marvin \ Video

Hi I am in the process to build a 486 rig. I have a S3 Virge pci videocard. With emplty ram expansion slots..Wich i would like to populate. I searched the forum, and i found an older post where someone linked az aliexpress link claimed that these chips would work with all types of s£ Virge card. …

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Re: Attempting to add larger RAM support to a 486 board

Posted on 2024-02-19, 20:44

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Interesting thread for me, because I own both a VL/I-486SVGOX4 Revision 1.2 and a VL/I-486SV2GX4 Revision 2.0. I found out the correct jumper setting for the SVGOX4 for Am5x86 L1 write back mode, it was really cumbersome: https://www.vogons.org/viewtopic.php?p=1195162#p1195162 By the way, you know …

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Re: Attempting to add larger RAM support to a 486 board

Posted on 2024-02-19, 20:32

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've been having some fun with 486 overclocking. I have two boards, a Biostar MB-8433UUD , and an ASUS VL/I-486SVGOX4 . The Biostar (BIOS UUD2014) is great, and is a well known board. It even POSTS and can run some of the DOOM benchmark running at 2x83=166MHz and one of the 2X-capable Am5x86 chips …

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Re: Configuring a PCChips 486 Motherboard with single banked cache

Posted on 2024-02-19, 20:18

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PCChips M912 in order for the motherboard to actually see the cache correctly I figured out after poking around in the manual the chipset auto config fuction must be turned off, and the "Cache Read Hit Wait State" must be set to "3-2-2-2". Setting it to that makes the cache work correctly but now …

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Re: Cannot enable Write-back cache mode on 486 DX4

Posted on 2024-02-19, 20:10

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Bump! Refloating this thread :D I have the same board and also the same behaviour. Enabling WB jumper in the board it refuses to post. While enabling WT, it posts. Any thoughts? Maybe try a newer firmware https://theretroweb.com/motherboards/s/dfi-g486vpa-rev.-0-rev.a Thanks, I just updated the …

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Re: Need help with this socket 3 board

Posted on 2024-02-18, 22:16

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I tried unsoldering the battery and adding in fpm ram but no luck. I still get the weird keyboard issue. Is there anyone who may be able to solve it? I have a vesa local bus controller card, cirus logic diamond speedstar pro and sound blaster 16 isa. Also it feels awfully slow despite having 256k …

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Re: 486 Build, I'm at a loss! Write failures on Drive C. But why?

Posted on 2024-02-18, 18:55

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Maybe I've missed this but I've had the same thing a few times. For me the solution was: - get the cf into a modern computer, clean the partition table (diskpart ie). Do not create any new partition yet. - put the cf back into the old computer, there partition it. Reboot. Run fdisk /mbr. - then …

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Re: 486 Build, I'm at a loss! Write failures on Drive C. But why?

Posted on 2024-02-18, 11:53

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Have another computer? Or different motherboard. BTW, please no EDO memory. Cheers, All my other systems are stable and I don't want to mess with them. This is the only 486 motherboard I have. I guess I could try finding a PCI 486 motherboard and abandon the VLB stuff altogether. Yeah that EDO …

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Re: Cannot enable Write-back cache mode on 486 DX4

Posted on 2024-02-18, 11:03

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

foxzflow wrote on 2024-02-18, 10:23: Bump! Refloating this thread 😁 I have the same board and also the same behaviour. Enabling WB jumper in the board it refuses to post. While enabling WT, it posts. Any thoughts? Did you try this setting for i486DX4 &EW? Filename 486wb.png File size 38.43 KiB …

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Re: While initializing device VXDLDR Windows protection error. You need to restart your computer

Posted on 2024-02-17, 22:49

by

by CoffeeOne

in Windows

in Windows

ohh yes i see them now.. but according to that manual it supposed to be on the other side of the sis chip. but yes i can see them now. Thats a relief.. Anyway , one of my friend told me he have 15ns 512 k cache cips Heres a photo of it.. Do you think this should work with my board? Also which one …

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Re: While initializing device VXDLDR Windows protection error. You need to restart your computer

Posted on 2024-02-17, 22:19

by

by CoffeeOne

in Windows

in Windows

https://i.postimg.cc/N0pPXY0K/423455111-1103039234380934-3130460869817721441-n.jpg Here is the picture from my motherboard EDIT: The guy whoom i am buying the cache cips from said, that if i dont have jumpers, it means that it might only support 256 k and eighter doenst gonna work with 512k or only …

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Re: 486 Build, I'm at a loss! Write failures on Drive C. But why?

Posted on 2024-02-17, 19:31

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've been trying to get a 486 build but I have run in to some issues that I just can't figure out. There is the system specs: AOpen Vi15G-4 CPU: Intel 486 DX2-66 RAM 72 MB (2x 4MB + 1x 64MB) Cache: 256KB video: Chips F64300 (1MB) (Rather fast card) The BIOS Version: R2.2 (date 12/15/93) The BIOS …

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Re: While initializing device VXDLDR Windows protection error. You need to restart your computer

Posted on 2024-02-17, 18:10

by

by CoffeeOne

in Windows

in Windows

hay .. just a few more thing i noticed.. I keep testing the motherboard if it got damaged, and i cant really tell.. if i take out the 4 cache chip it boots normally (well it boots to dos and Win 3.11.. still not in Win 95), altrrough i read the manual provided in retro web... where it says the 4 …

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