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Amazing work!

Just saw a basket case one on eBay sell for $65, would have bought it but the middle rear capacitor (or where it was) had a torn trace.

From what I remember the 2000's were the years of the pentium 4. It's amazing how these chips had to be profitable against the pentium, pentium II, pentium III and pentium 4 all at the same time not mentioning AMD itself and Cyrix and the others.

Grazie.👌

There were very uncommon high end servers in the late 80s/early 90s that had an AMP architecture (asymmetric multiprocessing.) I think it was Compaq that had a server with a main CPU that was a 486 and an I/O processor that was a 386. So technically you could have both an AMD and Intel CPU in the same machine working at the same time. Some high end disk controllers and video cards used 808x processors, so the same could be said for those as well.

These sounds were so mystical in my childhood. Part of the overall computer magic. The young uns wouldn't get it.

It IS cheating! In the video description is writen "Taking ISA CARD ...." so my question is: have you done the test with an ISA card?

80Mhz X 4, imagine ANY 586 / 686 running such high

Curious result 🧐🤨? Interesting 🤔

I also had voodoo 1's and 2's. SLI voodoo 2's with a Matrox Millennium for 2d. Sound was a SB AWE 32 I think. The super long card. Never got anything from 3dfx after that. I think I got a geforce 2 or something to replace the v2's. And as others have mentioned, unreal absolutely blew my mind at the time.

An unbranded SD card like that is a pretty sketchy red flag. Definitely do a fake flash test. It might report that it has 64 gb of capacity, but that doesn't mean it really does.

I sold my Voodoo5 5000 ten years back for a measly $250 after securing it for less than $100 in fully working condition. To me this card is not worth much, unlike the Voodoo 1 or Voodoo 2 which can run all older 3dfx games compared which the Voodoo 5 can't due to compatibility reasons. Also anything decent from Nvidia from that era destroys this thing in modern games of that time, so why bother. I'd rather get a Nvidia 6600GT or ATi 9800 Pro AGP which can be had around $100 today.

Great video. Adding the additional SRAM also improved the memory performance for my FIC 486-VC-H board, which is quite similar to the HD variant. Continue the great work. Thanks a lot.

There's a video of a guy running it literally on potatoes lol.

Does anyone know where I can download the English version of CTCM v1.5 (like the one in the video) ?

A tip on how to solder these wires and not melt the insulation: ruclips.net/video/7a3dA4r8rxc/видео.html

Interesting issue. I guess it wouldn't even be noticed by someone who is a compulsive socket/slot filler, so it's good to know it exists. As cache became cheaper later on in the 486 era, these kind of 'options' weren't as economical as they used to be and only one tag socket was required. I have one with two sockets and it's a pain.

sounds just like i remember even with the different crystal .

I am thrilled to exclaim that I picked up one of these today inside a complete build.

you did very well. thanks for showing. 😊

Awesome!

I don’t understand 80% of what you’re saying, but I like your videos.

Works good. Stuck a Cyrix Cx486 in it. We have one around here as part of a test and burn-in station for our legacy products.

Thank you for the information! ^_^ I have now found these topics on Vogons forum and read them. How lucky I was at the time that my first Am386DX-40 computer was on the ALi M1429/1431 chipset and I overclocked through the BIOS of all timings on the Fastest and ISA bus up to 16 MHz, with an AVGA2 video card, even watched MS Video 1.1 videos normally. ISA overclocked to 20 MHz (yes, there were such dividers are in the bios), but the sound card on the ESS688 chip was already starting to wheeze. Although Doom still started to slow down towards the end of the game, and Doom 2 severely slowed down, starting from the 5th level. But maybe they lacked 8Mb of RAM..

486 SX 25 was the very first CPU on the very first PC I ever used so very nostalgic! I think that board had no cache to start with, we added some later but don't really recall seeing much difference in games. It was an IBM 486 SX 25 system.

Most folks would never have never found that missing performance.. Well done.

6:54 0KNAB and 1KNAB.

Looking forward to more videos!

Nice find with the cache! Spoiler: This probably goes for ISA doom records?

this is my first PC as well.

Great to see more FIC boards of that era getting attention! I have a similar board, the FIC 4386-VC-HD (and you do, too ;) were I did not have these cache issues. When I found the board in my attic, it had the same amount of cache as yours (128K without the Alter RAM, maybe it was some kind of factory default configuration). First thing I did was upgrade it to 256K without Alter RAM as my manual also says that it's "optional" and I didn't really pay it more attention. After reading about Alter / Dirty RAM I realized that it has a performance impact and so I added an Alter TAG chip as well. While the performance did increase, it wasn't nearly as impactful as yours: Memory throughput increased by about 2 MB/s from 16.22MB/s to 18.21 MB/s on my 386DX40 according to speedsys. Sadly I don't have cachechk values from before I added the Alter TAG anymore. Maybe you can test with your 4386-VC-HD as well and see if it was just a peculiarity (or BIOS bug?) on the 486-VC-HD

Thank you for sharing this! I think I might have this issue on a Forex 386/486 board suffering also from low performance. I might just pop in one extra cache chip and see if it makes a difference! Great video and thanks for sharing this information!

You can install pentium overdrive on this board ( even with a lack of contacts in the socket! )

running the isa bus at the "proper" speed feels very tame now.

Nice to see this. I have a couple of 486 motherboards from the same manufacturer also with VIA chipset and both behave the same way you're describing here... I'll see if they support AlterRAM.. thanks for sharing!!

I used to sell those boards when I was a PC repair tech back in the early to mid 90's. Even owned one for a short time. I turned 47 on the 15th, and seeing this is what makes me feel old!

Vogons is always good

Yeah, back in the day always make sure write through is enabled.

Never knew about alter ram..

Necroware also did a video about how to properly de-pot the integrated modules so you can properly desolder the old battery, instead of Dremeling through the epoxy and soldering a career battery to the old battery, which i can't imagine is good since it'll charge a non rechargeable battery.

First thought when seeing a surface mount 486SX 25 - I wonder how much it can overclock? Excited to see what it can do! Sure sometimes not much, but other times... they can surprise you. Bonus if you can hedge the voltage up a touch if needed. Always fun to see what some of these "unloved" later budget "fill in parts" like this can do if you can get the shackles off, since technically they were also made on the "latest" process at the time. Pentium 75 is another one that's fun to see - a "back fill" part sure but the core is the same ;)

Awesome vid. Far too long between dinks. But thankful for the content. Can’t wait for the next one. Keep it up. 😊

To fix devices, you must have an activated win version with uts wn dvd, code, and the amount of win istalled that us allowed. A satellite does the fix offline. Maye your hair dryer comes first on the list, later the 486. My amd x2 cache took 6 monts to become fixed. It's like an ssd, and when clicking on icons, the hdd desn't move, the cache opens the windows, the cpu is at 0%. When the cache runs out, the hdd opens the files. About I can get used to 2x 512 kb cache.

Very cool! Looking forward to seeing what your "true purpose" of this board is =D

squeezing every last bit of performance out of these old rigs is like a drug!

another excellent video! I also happen to have this board in it's 386DX configuration (actually inside an olivetti system) and I have bought the bits to add the 486 socket and missing jumpers/resistors - it is very nice to find we can have some more speed from it :)

Nice! Looking forward to the secret project with this motherboard! :-)

This video sucks. Uninteresting board? HA! In 1992 you would have been robbing the piggy bank to make sure you got one because 386's got pretty stale, and the thoughts of something faster, at least smoother that could handle win 3.1 multitasking sounded like a godsend. But nooooo, some content creator in the future has to diss it and downplay it's significance. Modern snobbery just because it's molasses now doesn't mean it wasn't worth a crap, or "uninteresting" back then. Just sell it to someone who appreciates it, and go on to something you find more worthwhile.

Wow! Another very nice video! Thank you for your great content! 👍

Great show!