Does the switch color represent if the PC is a 286 or a 8086 ? No. The correct way to identify them is with the sticker at the left "IBM Model 30" or "IBM Model 30 80286". Historically an 8086 would be worth more than a 286 ? or the 286 is worth more because it is more hardware compatible? Model 30 …

Technically any 486 CPU bellow 50Mhz. does not require a heatsink. But heat is a big enemy of electronics so it would be nice to have some cooling. What I do with older systems not intended to have passive/active cooling systems (heatsinks/fans) it's use double sided velcro tape to fix a fan to the …

I recently got an U5SX @ 40Mhz and installed it on a Chicony CH-498B mainboard (Socket 2 and no VRM) replacing a 486DX/2-S. This board has an UMC chipset and 3 VLB slots. I havetwo VLB cards installed on this system: a Trident TGUI9400Cxi graphic card and a Promise DC-4030VL IDE caching card. Both …

Never saw one in the wild, but I've seen mainboards with them soldered on, like the U5SX motherboard I have and use as a 486 system. The U5SX CPUs are also supposedly around as installable discrete CPUs, but I have yet to see one myself. I actually have one. Haven't tested it (got it with a big lot …

Maybe you didn't know this, but there is a company that manufactured MIPS R3000 and also (briefly) x86 processors: IDT. Here is a list of processor manufactured by this company: http://www.chipdb.org/cat-idt-261.htm The IDT WinChip is a Pentium-like processor whose design was inspired by RISC …

It's a shame that nobody did make a lightweight TSR for file sharing over TCP/IP for DOS, all you can use basically is microsoft's network client and this takes loads of RAM Well there is an alternative to share files between linux and DOS using only a packet driver: http://etherdfs.sourceforge.net …

I have the same board, it's a Pinetech PT-321. It was a late 386 board, by then the 386 was "value" processor so they decided to save on SIMM slots. Unfortunately this made the memory configuration really inflexible. You must populate the 4 simm slots to make it work since the CPU FSB it's 32 bit …

when windows is running in 386 enhanced mode vshare.386 replaced share.exe in protected mode. See this: https://www.xilinx.com/support/answers/715.html and this: http://seamons.com/projects/infobase_tech/oldsol.htm#folio you have and updated version (for M$ Office 4.2) here: http://vetusware.com/ …

AcuMOS released two video chips before being buyed by Cirrus. The AVGA1 is a low cost VGA solution that only supports 256KB of video memory . It supports all VGA standard video modes plus 800x600@16 colors and 132 columns in text mode. AVGA2 is a low cost SVGA solution that supports 512KB of video …

Neither a Realtek 8019AS nor a 3Com Etherlink III 3C509 board are fully functional in my tandy 1000TL running DOS 6.22. The Realtek card works fine with packet driver; after installing Microsoft network client 3.0 and installing the NDIS drivers, system hangs at "net initialize" in autoexec.bat. …

Try disabling memory relocaton in BIOS setup. As last resort you can have UMBs using the generic EMS 4.0 support of TLBMM, QRAM or Invisible RAM. I have used all of them successfully with my 286 mainboard and a SUNTAC Chipset.

I'm not an expert in old Olivettis, but the M240 is an improved version of the M24 (aka AT&T 6300) and so it's and XT clone ... the RTC was a new feature of the IBM AT, the IBM XT does not have a RTC. What this means is that your M240 has a _non-standard_ RTC and you need a specific utility or a …

SB16, both PnP and non-PNP ones, work on a 286. I'm using a SB16 PnP (CT2950) currently on my 286. DIAGNOSE and MIXERSET work fine but I don't recommend you to use any of those utilities. * SB16 non-PnP: simply setup jumpers as required/desired and enjoy * SB16 PnP: Creative CTCM does not work on a …

I bought this neat VLB caching controller yesterday (paid e-bay price :(): http://i1262.photobucket.com/albums/ii603/tikoellner/_57_zpstbedayzs.jpg It's Longshine LCS-6941 Rev. C. It's allmost identical to my Promise DC4030VL but mine has an AMD 286@12Mhz processor. I also have 4MB of memory …