Re: This video card connector used for?

Posted on 2013-02-04, 00:33

by

by Anonymous Coward

in Marvin \ Video

in Marvin \ Video

like the one on this impression? http://mail.lipsia.de/~enigma/neu/pics/matrox_impression_lite.jpg Sorry, but for whatever reason I can never see photos on your server. I am using a VPN behind the great firewall of China, but your site is still blocked. In anycase, the name of the connector I am …

---

Re: This video card connector used for?

Posted on 2013-02-02, 14:27

by

by Anonymous Coward

in Marvin \ Video

in Marvin \ Video

I've seen a 3rd kind of feature connector that existed between VGA and AMC. It used a really proprieary long plastic connector. I think I've mostly seen these on 1994-95ish number 9 and matrox cards. I think it was functionally similar to AMC but with an expensive connector.

---

Re: This video card connector used for?

Posted on 2013-02-02, 11:15

by

by Anonymous Coward

in Marvin \ Video

in Marvin \ Video

That's usually known as the "vga feature connector" or "vga passthrough". You can hook other things in there like a TIGA or 8514/A high resolution card. Those were used by professionals in the olden days before VGA cards integrated graphics accelerators. I think feature connectors were sometimes …

---

Re: Intel-built 486/Pentium/PPro/PII motherboard guide

Posted on 2013-02-01, 15:30

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I want to know where I can get one of these: http://home.att.ne.jp/alpha/pcboard/0216-1NN.jpg with matching CPU card: http://home.att.ne.jp/alpha/pcboard/0216NN.jpg [/img] :shocked: holy heck what is that monstrocity? on another not i hate that proprietary BS but, some times it's part of the fun. …

---

Re: Pentium Restoration Project

Posted on 2013-02-01, 15:12

by

by Anonymous Coward

in Marvin \ System Specs

in Marvin \ System Specs

Interesting. What are those two rectangular chips next to the DIP sockets? I can't read them from the glare, but they *really* look like pipelined burst cache chips. *update* Ah, I see now. Those are Intel 82438FX "data path units".

---

Re: Don't Buy This Board

Posted on 2013-02-01, 15:09

by

by Anonymous Coward

in Milliways

in Milliways

He must have caught the error. It originally said Cyrix 5x86 100 (not Pentium 100). Soo....it's safe to buy now 😁

---

Don't Buy This Board

Posted on 2013-02-01, 13:09

by

by Anonymous Coward

in Milliways

in Milliways

http://www.ebay.com/itm/Jamicon-KM-T5-V-Socke … =item27cf46c0e6 Somebody stuck a Cyrix 5x86 heatsink on a socket7 chip. This is not a socket3 486 board.

---

Re: Some questions about 2 386DX-40 mobos

Posted on 2013-01-31, 04:49

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think I've seen this one on TH99 before. From what I recall it can support an obscene amount of memory for a 386...128MB if memory is correct. Of course you only have 128kb cache, so I don't know how useful having all that memory would be. You are correct about the FPU being present. It appears to …

---

Re: Pentium Restoration Project

Posted on 2013-01-31, 01:13

by

by Anonymous Coward

in Marvin \ System Specs

in Marvin \ System Specs

Looks like your board already has 256kb pipelined burst cache soldered on (with a COAST module to expand to 512), but then you seem to have plugged an extra 256kb into the async cache sockets. Very weird combination. Does the system actually report 512k installed?

---

Re: Upgrading a 386SX - some advice!

Posted on 2013-01-30, 00:00

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think it might be M5.EXE. For the most part the DLC and SXL utilities are interchangable...except that you won't be able to turn on clock doubling if you use a DLC utility on a SXL.

---

Re: Upgrading a 386SX - some advice!

Posted on 2013-01-29, 02:09

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There are two chips on the adapter. One is a triple input NOR gate. Have no idea what that would be for. The other appears to be a VRM, which is strange since the chip doesn't appear to be a 3.3V model.

---

Re: Upgrading a 386SX - some advice!

Posted on 2013-01-28, 12:05

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can you show me a picture of one of these upgrade chips?

---

Re: Upgrading a 386SX - some advice!

Posted on 2013-01-28, 09:48

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've used TI486SXL as a direct replacement for 386DX in several boards. Some work okay and others don't. I suppose it's a bit more of a pain in the ass if you solder in an SXLC chip to your 386SX board and it doesn't work. At the very least all of my boards booted up just fine, some just didn't like …

---

Re: Upgrading a 386SX - some advice!

Posted on 2013-01-28, 03:31

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

2.31.7 Texas Instruments TI486SXLC-PAF CPU (Potomac) Intel i80486 CPU instruction compatible, no FPU (Floating Point Unit). Intel i80386SX CPU bus interface. 8 kbyte cache: write-through, 2-way set-associative, 1024 sets, 4 bytes per line. 33 MHz: february 1994. Package: QFP (Quad Flat Package). …

---

Re: Upgrading a 386SX - some advice!

Posted on 2013-01-28, 02:01

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I used to have this information, because at one time I needed to track down the information on programming the CPU init registers which are slightly different than the cyrix chips. As far as I know if the part is 3.3V it will be printed into the top of the chip.

---

Re: Upgrading a 386SX - some advice!

Posted on 2013-01-27, 03:26

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

http://www.ebay.com/itm/RARE-486-50MHz-TI-NEW … =item2a0f336ae6

---

Re: Upgrading a 386SX - some advice!

Posted on 2013-01-25, 23:59

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

SMD soldering is a piece of cake. Just make sure you're using a low power iron.

---

Re: Upgrading a 386SX - some advice!

Posted on 2013-01-25, 12:08

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I am quite certain there are 5V versions, because I own two of them, and I remember checking them in the datasheet to confirm. I bought them as direct replacements for 386sx chips some time ago but never got around to soldering them in. https://lh4.googleusercontent.com/-PPMlLKj2N5k/RqLW4V5IW3I/ …

---

Re: Overclocked ISA Sound Cards

Posted on 2013-01-25, 12:02

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I wonder if there would be a way to add an extra divider to only one of the ISA slots so that it worked at exactly half the speed of the others.

---

Re: Upgrading a 386SX - some advice!

Posted on 2013-01-25, 11:35

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

More or less good, but with a few minor problems IBM 386SLC has 8kb cache, but the IBM 486SLC, SLC2 and SLC3 all have 16kb cache. You are correct they are 386SX bus compatible, but not pin compatible (as far as I've been told at least). I don't know of any Tx486SLC2s. Do they exist? Can you show me …

---