VOGONS


First post, by Pm148

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Hello !
I read this forum for years, but i've created an accound only recently, so now it's time to introduce myself. I'm from France, 26, and i've started using computers with an 8086 XT compatible Olivetti and a 486 in the early to mid 90'.
Now I've several vintage machines to play old games, from 8086 to P3.
So i've uploaded some pictures of several computers...
Here is my first computer, an Olivetti M24. It had originally an 8086 at 8 Mhz, but I upgraded it recently with a NEC V30. It has 640 KB ram, 20 MB ST-225 MFM drive, CGA-compatible Olivetti graphic card (with 32 KB ram so it can go up to 640x400 in mono mode), Realtek 8019 ISA network (works only with IPX, i'm unable to make it to work with TCP/IP), and a CMI 8330 SB clone sound card. It is now able to run some dos games like Rise of the Dragon, Commander Keen CGA, Prince of Persia, Eye of the Beholder... It can even play 4 CH MOD files with galaxy music player, midi files with Voyetra DOS FM driver, and mono 8 bit 44.1 kHz WAV (through LAN). At the moment, the proprietary mono monitor doesn't works anymore, i've to repair it.
Here is the pictures :
The BIOS was recently upgraded to the lastest 1.43 ROM and mainboard was previously repaired, a logic chip was bad in the ram refresh stages (blank screen) :
Picture%20281_zps7qbkqazk.jpg
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IMG_20120903_121708_zpsxc3laqzk.jpg
Here is some sysinfo/benchs :
IMG_20120903_155548_zpspoppknwn.jpg
IMG_20120903_155531_zpsj38dhzeh.jpg
IMG_20120901_145236_zpsmrlyi5fl.jpg
IMG_20120901_145157_zpsksw9yota.jpg
IMG_20120826_205912_zps8zu4p8wj.jpg
IMG_20120819_130759_zpsthh15h0d.jpg
Running Win 3.0 ! :
IMG_20120906_165108_zpsl0qau5jw.jpg
IMG_20120906_171214_zpsajsjexvh.jpg
IMG_20120906_171033_zpsumsxnayb.jpg
FRACTINT in 640x400 mono mode, seems to support 8087 FPU :
IMG_20120824_160308_zpsj8rajbcs.jpg
IMG_20120825_160819_zpsrtzcigsl.jpg
IMG_20120818_154348_zpshw6gqirh.jpg
IMG_20120818_154322_zps6kvgaur1.jpg
My AST Bravo LC, original specs : 486DX-33, 8 MB RAM, 200 MB HDD, cirrus logic 5428 onboard local bus. Now upgraded with a new mainboard with socket 3, WB support, and VLB slot, Pentium overdrive 83, 48 MB ram, 4GB HDD, SB32, AMD LAN board, Win 98 SE.
POD 83 on the original socket 2 mainboard:
IMG_20120217_190257_zpsriofnauy.jpg
New mainboard:
Photo2922_zps9e7f9b5f.jpg
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Running Tomb Raider 2 with the POD (not very fast, but acceptable for me...)
IMG_20120217_221130_zps6xbufxzb.jpg
My 486 DX-2 66 : FIC socket 1 with Am386 DX-40 onboard, ISA only, 16 MB ram, 6 GB HDD, Tseng ET4000 1MB VGA (before : Acumos AVGA2, 512KB), Realtek 8019 LAN, SB AWE 64, Win 95 :
IMG_20121020_072742_zpsdmaesa0z.jpg
IMG_20130622_213705_zpscnsrkvfe.jpg
Compaq Prosignia 200 server, upgraded for retro gaming : P II 300 Deschutes, 440FX chipset, 128 MB ram EDO ECC, SIS 6326, Voodoo 2 12 MB, SB PCI 128, 18GB SCSI 7200 rpm hard drive. Original proprietary PSU failed some years ago, so i've put an ATX PSU in the original PSU case, and wired it to the MB connectors (standard AT, and a proprietary connector for + 3.3V); Need to take more pictures at the occasion. Bios setup is not in ROM, you have to load it from floppies or CD !
Photo%202860_zpschxbti3j.jpg
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IMG_20120222_230600_zpso7cmzd1u.jpg
With ESS ES1869 sound card:
IMG_20130223_152810_zpsyhojtq3u.jpg
My Socket 7 rig : originally P133, 16 MB ram, S3 trio 64V+, now upgraded to the following specs : P200 MMX, 64MB ram (had 128MB on the picture), QDI Explorer 2 430VX board with 512KB L2 cache, ATI mach 64 VT 2 MB, Voodoo 1 4MB, 6GB HDD, 3COM ISA LAN, SB AWE 64 Gold :
Photo%202883_zpslhgvm30f.jpg

Last edited by Pm148 on 2015-02-16, 20:32. Edited 2 times in total.

Reply 1 of 6, by Skyscraper

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Nice systems!

New PC: i9 12900K @5GHz all cores @1.2v. MSI PRO Z690-A. 32GB DDR4 3600 CL14. 3070Ti.
Old PC: Dual Xeon X5690@4.6GHz, EVGA SR-2, 48GB DDR3R@2000MHz, Intel X25-M. GTX 980ti.
Older PC: K6-3+ 400@600MHz, PC-Chips M577, 256MB SDRAM, AWE64, Voodoo Banshee.

Reply 2 of 6, by RacoonRider

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Great post! Tell us more! What's the compaq daughterboard doing?

Reply 3 of 6, by Pm148

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The daughterboard on the Prosignia 200 mainboard ? It's a 100 Mbps LAN upgrade, the onboard lan support only 10 Mbps without it. Here is a picture with the board removed :
IMG_20120226_113158_zpsqu2y6jkp.jpg
Here is a bench of the Prosignia 200 before some upgrades (with an IDE drive since the original 4GB SCSI failed, and cirrus logic 5446):
IMG_20120224_224204_zpsppd96dja.jpg

Reply 4 of 6, by RacoonRider

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I guess the soldering points for a bigger chip around the 10Mbps LAN are for stock 100Mbps 😀

P.S.Funny how speedsys has the word "Deschutes" misspelled:)

Reply 5 of 6, by chinny22

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Some very nice PC's! I love the Olivetti. The 486 is more my style but that thing has so much character!
Do you play games on them much or is the building the PC more the enjoyment?

Reply 6 of 6, by Pm148

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Both. I like to play some games on these computers and to repair them. At the moment, i'm using sometimes the AST Bravo plugged in the VGA port of my 22" LCD, so it's easy to switch with my main rig (a core 2 duo, 4GB ram, Win7 x64, recently upgraded with a Geforce GT740 in a early 2000's beige case ^^ It first housed a celeron coppermine/GA-6BXC/GF2 MX 400 that was upgraded until now ^^)

I wanted to put a VGA card in the M24, but without sucess. The bios was updated from 1.36 to 1.43 (EGA support), correct PALs on the mainboard, dip switches were correctly configured, and "integrated" CGA board disabled. But nothing. I tried a acumos AVGA2 and a trident 9000B (with jumpers in 8 bit mode !), with a 8086 and a V30. It seems that the M24/AT&T 6300 has a "bug", the odd/even bytes are in the wrong order or something like that (not 100% IBM compatible ^^).
A 3rd "bus correction kit" was sold but it is very rare nowadays. Some guys at the vintage computer forum tried to build new kits but it seems there is still some work to do.
http://www.vintage-computer.com/vcforum/showt … Olivetti-M24%29

I wonder if the TCP/IP problem is not related to this "bug", as the packet driver doesen't show correctly the MAC adress of the LAN board. But with IPX the network works fine, and it's nearly as fast as the hard disk (but use conventional memory, I don't have an EMS card 🙁 ) Very fun to map directly a 2 TB drive on such a old computer ^^
When I have free time to repair the monitor, I want to try 8088 domination on it 😀