First post, by Anonymous Coward
I've been working on this system for what seems like forever. I've made a few small changes recently. Here's what I've got so far:
-Inwin H500 ATX Chassis
Converted to AT using an ebay kit. I previously used a huge full tower case, but I decided to downsize since I moved overseas. The Pentium that previously occupied this case was decommissioned.
-Nice/Lion/MCCI SuperEISA V1.2 w/1024kb cache
My favourite 486 board. 8 EISA slots, 1 VLB. Supports up to 256mb RAM (fully cached???). I upgraded the three 64kx4 TAG rams to 12ns. This is a very fast board for such an old design.
Here's a closeup of the 128kx8 cache chips:
-AMD 5x86-133ADW @160MHz
My ADZ didn't cut the mustard at 160MHz, but the ADW did. (Now running a 486DX5-16BGC with 2000 date code). It's currently sitting on a VRM, which sits on an interposer to force WT cache mode. I use a very nice industrial style clip on heatsink with a fan just to be safe. Here's a breakdown of all the components. Transposer + VRM + CPU + Bracket + Clip + Heatsink + Fan:
This is the CPU after all the adapters are installed:
-128MB 60ns FPM 30pin SIMM
I don't think this much memory is really necessary, but 16mb 30-pin SIMMs are niftyt. I would like to upgrade to 256MB if I ever find the modules at a low price.
-Hercules Dynamite Power VL w/2MB DRAM
I've tried just about every VLB card worth trying, and I always come back to the ET4000W32P. It's quite fast in DOS (but just so-so in Windows)....which is why I have a SuperMac Spectrum/24.
-SuperMac Spectrum/24 w/3MB VRAM EISA
This card is an accelerator only, no VGA core. It connects to the VGA passthrough on the Hercules card (also needed to build a VGA terminator). It only does 24-bit colour modes, but for the the Windows programs that require 8-bit, I can still fall back to the Tseng just by changing the driver in windows setup.
-Adaptec AHA-2742W Wide SCSI EISA
I didn't feel a caching controller was necessary as I already have so much main memory. Bus mastering on EISA is supposed to work pretty well.
-STB ECP & 16550 I/O
-3com 5c597TX 10/100mbps EISA
I still haven't really gotten much use out of this card, so I am not totally sure if it can get up to speed.
-SoundBlaster Pro 2.0 (Now replaced with Yamaha YMF-719)
I sacrifice sound quality for good DOS game compatibility. I also considered SB16, AWE32 and AWE64 (which I have), and CS4232 +OPL3 (which I couldn't find)
MPU-401AT + DB60XG
I finally got one of these damn Roland cards, which solves the hanging notes problem on creative cards, or in the case of the SB Pro the lack of MPU-401 header. I would have preferred LAPC-I, but I couldn't find it. For now this DB60XG seems to do what I need. Perhaps I can upgrade to Soundscape later.
BAY1: 5.25" 1.2mb FDD
BAY2: Plextor PX-32CSI 32X SCSI Caddy loader
BAY4: 3.5" 1.44mb FDD
BAY6: Seagate Barracuda 2GB Wide SCSI HDD (loud as hell)
This is an older photo I had on file of the motherboard, before I installed the new cache chips and added the CPU fan. Last year "lamcsales" on eBay was selling a bunch of these boards, but they all had the Everex BIOS installed. Mine has the regular AMI 6/6/92 BIOS installed with all the bells and whistles: