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Bought these (retro) hardware today

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Reply 33280 of 34294, by liqmat

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derSammler wrote on 2020-04-05, 19:46:

Pentium 175, too. Doesn't exist.

Seems legit to me.

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Reply 33281 of 34294, by mpe

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Let's stay with the original....

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Reply 33283 of 34294, by Horun

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I do not think so...

Last edited by Horun on 2020-04-06, 13:15. Edited 1 time in total.

Hate posting a reply and have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. 🤣

Reply 33284 of 34294, by bjwil1991

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Bought me my childhood motherboard that I haven't seen or used in 8 years (old one lost the BIOS chip and wasn't Y2K compliant with many other issues). PCChips M912 V1.7 with real L2 cache and AMI BIOS (might be the WinBIOS). Has a broken latch for the CPU socket, but works otherwise, however, I have a spare from a beyond repair board, so that'll be an easy fix, plus I have 2 CPUs to use and some RAM, VLB I/O card, sound card, and video card (ISA Trident card). Might get a VLB video card that'll work with both MS-DOS and Windows 95, as long as it has good acceleration (CL-GD5428 won't do justice, but a Diamond Stealth 24VL would be).

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Discord: https://discord.gg/U5dJw7x
Systems from C64 to FX-6300.

Reply 33285 of 34294, by liqmat

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Intel486dx33 wrote on 2020-04-05, 18:38:

I want to find the sweet spot between the CPU speeds of the 286-10mhz thru Pentium class CPU.
Using just ONE Pentium CPU.

If you really want that range in speed the closest thing you're going to get, in my experience, is an early Socket 5 board with a "turbo" toggle. Usually it was CTRL-ALT-(+,-). The toggle, I believe and someone correct me if I'm wrong, was just disabing/enabling L2 cache on the board which had a dramatic effect on speed. I had a stack of these boards at one time and still may have a few, but I wont have access to them until the fall. With a Pentium 75 installed and de-turbo inititated it was about slow 486 to mid range 386 speeds. Just an idea.

Reply 33286 of 34294, by bjwil1991

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I have cache control programs I wrote using DEBUG and that makes my 486 go from 133MHz to 33MHz or 40MHz 386 speeds (some games are speed sensitive for the Roland MT-32) and the cacheoff command is called when I choose the MT-32 for the music, especially for Wing Commander 2 (use it for the Sound Blaster one as well) and calls the cacheon command to get it back to speed since pressing the Ctrl-Alt-(+/-) on my 486, but the key command on the Socket 5 board that you gave me works with the key press. Also, Ctrl-Alt-\ also toggles it as well, if my memory serves.

Discord: https://discord.gg/U5dJw7x
Systems from C64 to FX-6300.

Reply 33287 of 34294, by liqmat

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That's right, I gave you one of those boards. I think that type of board would serve his purpose. I think it's the Intel Zappa board iirc.

This is the board >> http://tulrich.com/tectrixvr/intel_pba-638995_manual.pdf

Page 26 - deturbo = similar to 25MHz AT speeds.

Reply 33288 of 34294, by PC Hoarder Patrol

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Finally got round to opening the (quarantined!) box on my Data General AViiON 2300 dual P3 server. Weirdly, it seems to have been packaged separately in bits (case frame, case bezel, board/cpus/memory & PSU). Sadly there's more issues with the bezel on the Astor II case than I had expected - I knew there was bad pillar damage but it turns out the outer hinged door, which covers the hot-swap SCSI drive bays, is a bit of a write-off as it's missing a chunk and the rest has some nasty cracks, so I'll either have to leave the case front open or consider making my own door.

Anyway, enough of the downers and onto the core of the system - the L440GX+. The board was pretty clean but the PSU needed quite a bit of cleaning. Once I've checked these fully I'll decide what to do about the case.

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Reply 33289 of 34294, by brostenen

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I bought this board, for my SixyClone project. It is cheaper to buy a complete board for parts, than it is to buy every connectors seperately.Especially the cartridge connector is really hard to come by, and the shield over the connector is impossible to source anywere these days. Yup... Going to build my own Commodore64 from scratch. 😁

https://www.ebay.com/itm/Commodore-64-motherb … ordt=true&rt=nc

(If anyone is interested, I can post the link to the SixtyClone again)

Don't eat stuff off a 15 year old never cleaned cpu cooler.
Those cakes make you sick....

My blog: http://to9xct.blogspot.dk

001100 010010 011110 100001 101101 110011

Jah ich will trynen... Die Leute wie macht scheisse in dem Grünen.

Reply 33290 of 34294, by Cyrix200+

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brostenen wrote on 2020-04-06, 06:58:

I bought this board, for my SixyClone project. It is cheaper to buy a complete board for parts, than it is to buy every connectors seperately.Especially the cartridge connector is really hard to come by, and the shield over the connector is impossible to source anywere these days. Yup... Going to build my own Commodore64 from scratch. 😁

https://www.ebay.com/itm/Commodore-64-motherb … ordt=true&rt=nc

(If anyone is interested, I can post the link to the SixtyClone again)

Ah cool! You're going to build a SixtyClone #250466 then?

They're reasonably priced I think. Looks like a cool project!

1982 - 2001

Reply 33291 of 34294, by brostenen

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Cyrix200+ wrote on 2020-04-06, 14:42:
brostenen wrote on 2020-04-06, 06:58:

I bought this board, for my SixyClone project. It is cheaper to buy a complete board for parts, than it is to buy every connectors seperately.Especially the cartridge connector is really hard to come by, and the shield over the connector is impossible to source anywere these days. Yup... Going to build my own Commodore64 from scratch. 😁

https://www.ebay.com/itm/Commodore-64-motherb … ordt=true&rt=nc

(If anyone is interested, I can post the link to the SixtyClone again)

Ah cool! You're going to build a SixtyClone #250466 then?

They're reasonably priced I think. Looks like a cool project!

Yup. I am going to build my self a brand new Commodore64, with the use of as many new parts possible. Of course there is a limit in terms of money, hence I will be using old ports like cartridge connector and DB9 ports. However, what is saved on ports, can be used on other stuff or even get the absolute best SID revision out there. There are actually only a few things that have not been replicated/made from new.

The main reason why I am building one, is of course to build it, and see the machine running for the first time.

Don't eat stuff off a 15 year old never cleaned cpu cooler.
Those cakes make you sick....

My blog: http://to9xct.blogspot.dk

001100 010010 011110 100001 101101 110011

Jah ich will trynen... Die Leute wie macht scheisse in dem Grünen.

Reply 33292 of 34294, by Horun

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bjwil1991 wrote on 2020-04-06, 05:36:

Bought me my childhood motherboard that I haven't seen or used in 8 years (old one lost the BIOS chip and wasn't Y2K compliant with many other issues). PCChips M912 V1.7 with real L2 cache and AMI BIOS (might be the WinBIOS). Has a broken latch for the CPU socket, but works otherwise, however, I have a spare from a beyond repair board, so that'll be an easy fix, plus I have 2 CPUs to use and some RAM, VLB I/O card, sound card, and video card (ISA Trident card). Might get a VLB video card that'll work with both MS-DOS and Windows 95, as long as it has good acceleration (CL-GD5428 won't do justice, but a Diamond Stealth 24VL would be).

s-l1600.jpg

Nice ! Those are actually very good motherboards. I could be wrong be think all with the black ISA slots had real cache and many with the white ISA were the ones with fake cache (of the v1.7's) but am sure that just a rumor.

Does it have 256k cache ? Some of them came with 256k as either a 9 chip or a 5 chip set (cannot read your cache chips). Any chance of a better pic of the cache chips ? Just curious because I have seen the 5 chip 256k but not the 9 chip 256k in detail on a v1.7. Thanks !

Hate posting a reply and have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. 🤣

Reply 33293 of 34294, by gdjacobs

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liqmat wrote on 2020-04-06, 05:44:
Intel486dx33 wrote on 2020-04-05, 18:38:

I want to find the sweet spot between the CPU speeds of the 286-10mhz thru Pentium class CPU.
Using just ONE Pentium CPU.

If you really want that range in speed the closest thing you're going to get, in my experience, is an early Socket 5 board with a "turbo" toggle. Usually it was CTRL-ALT-(+,-). The toggle, I believe and someone correct me if I'm wrong, was just disabing/enabling L2 cache on the board which had a dramatic effect on speed. I had a stack of these boards at one time and still may have a few, but I wont have access to them until the fall. With a Pentium 75 installed and de-turbo inititated it was about slow 486 to mid range 386 speeds. Just an idea.

There are a few unicorns out there that allow some amazing things to happen. Of course, that does require you to go unicorn hunting.
WIP 2: The 6-in-1 Turbo-switched Socket 7 - from XT to 500MHz; dual Tseng powered...

I'm not 100% clear what the board is altering. The chipset may be adding wait states or other sources of delay. Deturbo for this guy is clearly independent of cache configuration.

All hail the Great Capacitor Brand Finder

Reply 33294 of 34294, by bjwil1991

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Horun wrote on 2020-04-07, 00:38:

Nice ! Those are actually very good motherboards. I could be wrong be think all with the black ISA slots had real cache and many with the white ISA were the ones with fake cache (of the v1.7's) but am sure that just a rumor.

Does it have 256k cache ? Some of them came with 256k as either a 9 chip or a 5 chip set (cannot read your cache chips). Any chance of a better pic of the cache chips ? Just curious because I have seen the 5 chip 256k but not the 9 chip 256k in detail on a v1.7. Thanks !

Toshiba TC55V328AP-15 28-pin PDIP SRAM (3.3V 32Kx8), 9 of them, so 256KB L2 cache altogether. The board can take up to 1MB L2 cache, which was a lot for a 486 board.

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Discord: https://discord.gg/U5dJw7x
Systems from C64 to FX-6300.

Reply 33295 of 34294, by pan069

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Very happy to have acquired a Sound Blaster 2.0 CT1350B. I never had this one growing up, I had a Sound Blaster 1.5 with the add on CMS chips instead, but that one is loooong gone unfortunately.

I have been taking this one for a test drive the past day or two. It's in my 286/16, replacing my Blasterboard (sorry Blasterboard, you're awesome but the CT1350B is awesomerer...).

The card is is good condition, sounds great and the CMS chips are also working as expected. All in all, a great addition my collection of Creative cards.

nSKtRvD.jpg

Last edited by pan069 on 2020-04-07, 23:27. Edited 1 time in total.

Reply 33297 of 34294, by mpe

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Love the CMS beeps!

Bought ET4000 VGA for my 386 build

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