Hi all, I do have an update - several of you hinted at using industrial grade CD card, which left me intrigued. So I bought one, specifically Transcend CF200I 4GB card https://uk.transcend-info.com/Embedded/Products/No-521 And it worked, now all programs and games I tried so far loaded and are …

So today I tried the following: I hooked the following to a same setup - Pentium 166 computer: 1) Old seagate 2GB drive which was in the 486 originally, with DOS 6.22 and bunch of games and few programs (all works okay with exactly the same configuration (and BIOS settings)) - primary slave 2) New …

Hi guys, So I am in final steps of building my 486, latest step being swapping old an noisy 2GB HDD for CF-to-IDE disk. I followed several guides for partitioning, formatting and installing DOS 6.22, eventually making it boot. I was happy as a clam, with the computer being all fast and quiet - right …

This morning, I worked on my new old acquisions from this week, Cleaned and PTFE lubricated Cherry G84-4100 keyboard (and found that not only it was made in my home country, Czech Republic, but assembled by some guy named "Šindel", as hand-signed on a sticker under a spacebar) Then cleaned and …

We shall see So...an update is due, Well the 32k x 8 chips arrived a few weeks ago. I replaced all SRAM chips on board with these (4x in Bank 0, 4x in Bank 1, and 1pc tag ram) for 256kB cache configuration, set the jumpers as per manual, enabled external cache in bios - but the computer would not …

Does the HOT419 support 1MB of 2nd level cache? I follow the manual I link to in my post above, HOT-419 DZ R2 supports up to 512K cache. 256K is done by 4pcs 32k x 8 chips in BANK 0, 4pcs 32k x 8 chips in BANK 1, with 1pc 32k x 8 chip for Tag RAM 512K is done only by 4pcs 128k x 8 chips in BANK 0 ( …

Hey guys, Let me add fresh info on this topic, as I am currently- in 02/2019 - building my 486 nostalgia machine based on Shuttle HOT-419 DZ R2 motherboard http://www.elhvb.com/supportbios.info/Archives/MANUAL/SHUTTLE/HOT-419htm/419dz.htm#hd001 My board was, as I bough it, fitted with full banks of …

Sorry that was supposed to be A80486DX4-120SV8B CPU...120mhz Well, I could not find a specific mention of OPTi 895 supporting EDO, only a past rig sale on Ebay claiming that with same board as mine, there are 4MB EDO SIMMs, apparently working https://www.ebay.ie/itm/Shuttle-HOT-419-OPTi-895-486-VLB- …

-Are you sure your 486 can handle EDO RAM? 486s normally insist on FPM. -You can check whether or not your sticks are EDO or FPM yourself. Reading the markings on the memory chips and enter them in a search engine to look for a datasheet. The chips are marked HY5117405BJ-60, I could not find an …

Hi all, My first post here - Nostalgia got to me recently, so I decided to build myself a shiny new-ish 486 setup to play with I got a PC with Shuttle HOT-419 DZ R2 mainboard with Intel DX20DPR66 CPU accompanied by 2pcs of not-identical 4MB 72pin SIMM in banks 0 and 1. With a faster CPU being is on …