Hey westygw - You probably already know this (I am assuming due to your familiarity with CRT terms, etc), but I just wanted to make sure you are aware of how to properly discharge a CRT (and that it involves more than just the anode from the flyback). Or perhaps for someone else that stumbles …

I'm gonna carefully remove that circuit board here soon and check everything over. Hopefully it is just a cracked joint that I can fix easily. The loud noise is definitely coming from this little plastic container (not sure what's inside) on the circuit board, or from underneath it. It doesn't …

Hi. This is a real shot in the dark.. but maybe someone can help. I've got this new CRT I picked up- a Compaq P1210 (HP P1210). On my DOS PC the image is flawless and stunning. On my Windows 10 PC, the image has dramatic vertical foldover on the top 1-2" of the display. This folding is associated …

After much trial.. and much error.. it all works. I found an archived copy of the mobo manufacturer's website.. and got a copy of their config utils.. and ran them in Windows 3.11 in DOSbox.. ..to get the correct jumper settings. Now everything is working and things are great. Thanks for all the …

Jo22 wrote: Uhm, do you say your are using two separate cards (IDE and FDC) ? I'm using one host card that has IDE and FDC onboard. I think I mentioned that I have two cards, but they're just two separate Host cards that I was trying. They both seem to work okay.

http://www.elhvb.com/webhq/models/486vlb3/4dms.txt.html This is the manual (or something) for my Motherboard. It says that it supports an "Enhanced AMD DX4", but I can't find any of the jumper settings for it. The mobo isn't well documented on the actual hardware, so I'm at a loss. My suspicion is …

Geforcefly wrote: I had a related issue with a Biostar MB1433 VLB motherboard + Cyrix DX4-100 in which the floppy drives would be flaky with L1 cache on. Annoying because of the MASSIVE performance hit for everything else it caused. Were you able to find a solution besides simply running no L1 …

Sorry I haven't been responsive or posted any pictures. I'm diagnosing everything remotely, so it's causing slowness. What I've discovered is that the issue is corrected when disabling L1 cache. L2 cache seems fine and if L1 is enabled and L2 is disabled, the PC constantly reboots. So, once L1 cache …

Could a memory problem really be causing this sort of deal? I'm not sure if I have any more 72-pin SIMMs around, but I'll surely find some to test with, somewhere. I'll double check the ISA bus clock and memory timings as well as try some new things.

Have you tried moving the controller card to different ISA slots? Have you confirmed the IDE/floppy cables are properly oriented? Is there plenty of slack in the cables? (I once had an issue that was because my cable was slightly too short, causing the tautness to pull it out of the drive slightly) …

I haven't tried disabling the external cache. This Motherboard was brand new and this is the first time it's been used. Fresh CMOS battery. The two controller cards I've tried (on multiple ISA slots) work fine in a different PC and the jumpers appear to be configured correctly by the manuals. I …

So, this is a pretty strange issue and after scouring the Internet I haven't quite identified what it is. I thought maybe, through some expertise, someone here might know more about what's going on. I've got a later 486 motherboard w/ only ISA and VLB slots. In it is a am486 DX4 100MHz. No matter …

I was able to acquire a Cirrus Logic 5429 expanded to 2mb, thanks to this forum's help. Also, as for why I was wanting >1MB DRAM.. it was more for personal gain and as a collectable. Thanks for all the livelihood and responses, everyone! It's been a good/informative read.

meljor wrote: kixs wrote: meljor wrote: At least the 2nd, 3th and the last one has 8x 256k chips of ram and look like 2mb cards to me? Those are all 1MB cards. Ok, my bad. Haha Meljor you got my hopes up. I was trying to zoom in to read the chips.

I feel like I remember seeing a ton of these things a few years back. Now they've become uncommon/expensive like everything else from the era. 😵

Here are a few: Can't say for sure if they actually have at least 2MB, but that is what they are listed as having, and/or are upgradeable. https://www.ebay.com/itm/Daewoo-9910102800-VLB-Video-Card/192358637014 (ATI Mach 32) https://www.ebay.com/itm/Cirrus-Logic-CL-GD5428-80QC-A-VESA-LOCAL-BUS-VLB- …

Hi, this is my first post. I've lurked for multiple years, but gotten so broken-down that I finally decided I had to ask a question. Does anyone know an source for a 2-4Mb VLB card (that isn't a trident)? It seems like tons of these things were made with many differing varieties, but somehow I can't …