Picked up a pair of Roland MPU-401AT cards. These are my favorite internal MIDI cards and have been challenging to find, so I was glad to acquire a couple more.

Industrial PC motherboard with ISA, PCI, DMA support and Compact flash slot (6x USB 2.0, 6x COM, FDD support with 5.25’ and 3.5’ floppies 360Kb - 2.88Mb). Brand NEW.

i850 based ASUS P4T-E

This arrived today - Canopus Pure 3D IILX

It came with original cables, including an internal pass through cable to the Spectra 2500 TNT card.

debs3759 wrote on 2023-05-08, 17:10:

I would guess it's a memory expansion card, as it has 8 RAM chips on it. Possibly for a specific motherboard.

I only see 4 RAM chips.

Is there anything on the other side of the card?

I was looking for a KT333 motherboard, but instead this listing turned out to be a Super Socket 7 board - the 1st one I have owned since 1998. A loose 256K async cache module was also included. I thought the fan was bare, but attached was a bill for building a 486, heh!

BreakPoint wrote on 2023-05-08, 16:55:

Can someone identify this ISA card? I do not want to plug it to a PC before i know what it is.

Delay line in upper left corner, thats how some people designed dram controllers back in the day. AST six pack plus uses same method. 4x MB81464 64kbitx4bit rams, 128KB in total.

rasz_pl wrote on 2023-05-09, 03:10:

Delay line in upper left corner, thats how some people designed dram controllers back in the day. AST six pack plus uses same method. 4x MB81464 64kbitx4bit rams, 128KB in total.

This controller came in a box with this memory card. May Be they somehow related.
And no, there is nothing on a back side.

BreakPoint wrote on 2023-05-09, 05:52:

rasz_pl wrote on 2023-05-09, 03:10:

Delay line in upper left corner, thats how some people designed dram controllers back in the day. AST six pack plus uses same method. 4x MB81464 64kbitx4bit rams, 128KB in total.

This controller came in a box with this memory card. May Be they somehow related.
And no, there is nothing on a back side.

this is same thing, delay line in center of the card and also 128KB 😀

chrismeyer6 wrote on 2023-05-08, 11:50:

Brawndo wrote on 2023-05-08, 05:00:

chrismeyer6 wrote on 2023-05-07, 19:47:

Stupid question did you use a new bios battery? I've had a large number of motherboards old and new either not power on/post or just behave and strange unpredictable ways with missing or dead/low bios batteries.

I did not try a new CMOS battery. I've never had a board not boot with a dead or missing battery, they just don't retain settings or date/time, so that would be news to me. Worth a shot I guess. I'm going to try a few more things before throwing in the towel though. I really want it to work.

I was totally dumbfounded the first time I figured that out. So I went back through my container of non-working motherboards and trying new batteries had 15 suddenly spring to life. I did as a control pull the battery and try again and sure enough they all played dead. So it's one of my go-to troubleshooting steps. My sons socket A system with a Abit KT7a-raid gets weird blue screens or hangs at post when it's battery gets low and my EVGA 680i based XP system will not post with a dead battery.

I think I was angry for a week 🤣 ... be another week getting over it if I find dallas boards doing it.

chrismeyer6 wrote on 2023-05-08, 11:50:

Brawndo wrote on 2023-05-08, 05:00:

I did not try a new CMOS battery. I've never had a board not boot with a dead or missing battery, they just don't retain settings or date/time, so that would be news to me. Worth a shot I guess. I'm going to try a few more things before throwing in the towel though. I really want it to work.

I was totally dumbfounded the first time I figured that out. So I went back through my container of non-working motherboards and trying new batteries had 15 suddenly spring to life. I did as a control pull the battery and try again and sure enough they all played dead. So it's one of my go-to troubleshooting steps. My sons socket A system with a Abit KT7a-raid gets weird blue screens or hangs at post when it's battery gets low and my EVGA 680i based XP system will not post with a dead battery.

It's a thing, I had it happen to me more than once.

chrismeyer6 wrote on 2023-05-08, 11:50:

I was totally dumbfounded the first time I figured that out. So I went back through my container of non-working motherboards and trying new batteries had 15 suddenly spring to life. I did as a control pull the battery and try again and sure enough they all played dead. So it's one of my go-to troubleshooting steps. My sons socket A system with a Abit KT7a-raid gets weird blue screens or hangs at post when it's battery gets low and my EVGA 680i based XP system will not post with a dead battery.

that's interesting, i really thought that without the battery the board would just forget settings and start up as for the first time

have others experienced that too?

Dell Pentium 4 era machines were known to do this as well. Dead battery and you get no POST at all.

PcBytes wrote on 2023-04-19, 10:58:

@ATi_Loyalist You'll probably love this. […]
Show full quote

@ATi_Loyalist You'll probably love this.

Scored these from another forum (which me and @Robert B usually frequent). ABIT IS7-E v1.2 + HIS Radeon X1950 Pro 256MB w/ Sapphire HSF.

The X1950 just needed a slight reflow of the bridge chip and it's now back in business, I'll be also pasting a heatsink over that bridge bugger so it won't die again, now that I also added a thermal pad from a dead X1650 Pro.

Fan on the IS7 NB isn't original btw, it's from a dead ASUS K8N4-E northbridge cooler.

Oooooh yeah! Always wanted an IS7, they were excellent overclocking boards but didn't sell the volume that Asus did, not easy to find these days!

I have a couple AGP X1950s I need to test, @PcBytes how did you reflow the bridge chip?

BreakPoint wrote on 2023-05-08, 18:18:

i850 based ASUS P4T-E

Interesting! Did it come with ram?

ATi_Loyalist wrote on 2023-05-09, 15:50:

Interesting! Did it come with ram?

No. It's mine.
It was saved from recycling. Had to purchase 28 kilos of scrap. But it was worth it.

BreakPoint wrote on 2023-05-09, 16:03:

ATi_Loyalist wrote on 2023-05-09, 15:50:

Interesting! Did it come with ram?

No. It's mine.
It was saved from recycling. Had to purchase 28 kilos of scrap. But it was worth it.

That's dedication!!! Nice work!

gerry wrote on 2023-05-09, 14:20:

chrismeyer6 wrote on 2023-05-08, 11:50:

I was totally dumbfounded the first time I figured that out. So I went back through my container of non-working motherboards and trying new batteries had 15 suddenly spring to life. I did as a control pull the battery and try again and sure enough they all played dead. So it's one of my go-to troubleshooting steps. My sons socket A system with a Abit KT7a-raid gets weird blue screens or hangs at post when it's battery gets low and my EVGA 680i based XP system will not post with a dead battery.

that's interesting, i really thought that without the battery the board would just forget settings and start up as for the first time

have others experienced that too?

I wonder how many 'dead' mainboard this conversation revives 😁 I didn't know that, too

cyclone3d wrote on 2023-05-08, 23:06:

debs3759 wrote on 2023-05-08, 17:10:

I would guess it's a memory expansion card, as it has 8 RAM chips on it. Possibly for a specific motherboard.

I only see 4 RAM chips.

Doh! My bad, guess I'm not the mathemagician I once was 😀

Took a chance on a listing for an i810 board that mentioned a Tualatin was already installed. Amazingly I got it without any other bidders, and surprisingly the seller didn't go in a huff and cancel the listing for not clearing an unstated reserve price. So that's the second PIII-S 1.4 I've obtained this much cheaper way.

The CPU is bound for a Compaq server board (hope the differing S-Specs don't matter), while the GA-6IWFL isn't entirely junk as The Retro Web says it supports VIA C3. I like to see if I can put these old i810 boards back to use in low-power roles. i386 Pi-hole, baby!