Re: RTC Battery Hack Cut Wires Help

Posted on 2018-10-11, 07:55

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I asked about the difference with the plus version and someone said the plus version is just the lead-free version and that its the same Yes, this seems to be correct. I checked the datasheet from Maxim (who obviously bought DALLAS at some point) and it states exactly this. While checking the …

---

Re: RTC Battery Hack Cut Wires Help

Posted on 2018-10-10, 18:59

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Maybe it is about time you give more information about the board and a few pictures of the chip in the board, boot screen, etc... Could be that you damaged the original chip and the replacement is not conpatible. Is the replacement one exactly matching the type of the original?

---

Re: RTC Battery Hack Cut Wires Help

Posted on 2018-10-10, 13:45

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It could work with 4.5V as well. The CMOS clock chip itself is most probably a standard one that can take up to 5V. But why taking chances? Just short the contacts for one cell in your 3xAAA battery holder and put just two AAA cells in.

---

Re: SB PCI128 or SB AudioPCI ESS1371 - Which is better?

Posted on 2018-10-10, 11:13

by

by realoldguy23

in Marvin \ Sound

in Marvin \ Sound

Which leads to the interesting question which sample rate the early Win98 games used, 44.1kHz based or 48kHz based? Maybe an interesting research project when I find the time...

---

Re: RTC Battery Hack Cut Wires Help

Posted on 2018-10-10, 11:03

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cutting one wire is enough. The circle is "broken". 😀

---

Re: Bought these (retro) hardware today

Posted on 2018-10-10, 07:47

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My 2 cents: possibly a Socket 5 to Socket 7 adapter to allow the use of the Pentium MMX or K6 processors (correct me if I'm wrong here). Either this or a single-voltage Socket 7 to split-voltage Socket 7 adapter. Maybe the adapter covers both use cases. P55C is the Pentium MMX and K6 is its …

---

Re: Help to find + and - on RTC Chip

Posted on 2018-10-09, 08:49

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This is where the battery pins are: ODIN 12C887 small.jpg I think you can get these for around 10€ brand new, at least in Germany: https://www.reichelt.de/uhren-kal-ic-real-time-clock-ram-edip-24-ds-12c887-p188831.html?&trstct=pos_0 Maxim still seems to make them. But I went for the "tinker route" …

---

Re: ECS Elite UM8810PAIO REV:2.1

Posted on 2018-10-09, 08:41

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks, i had a feeling it would require a programmer. Is it possible to pick up a programmer for a cheap price? Is there a specific one i would need to get? Is it possible to switch out an EPROM for an EEPROM? Yes, it is possible if they are compatible and you program them outside of the board. …

---

Re: SB PCI128 or SB AudioPCI ESS1371 - Which is better?

Posted on 2018-10-08, 13:02

by

by realoldguy23

in Marvin \ Sound

in Marvin \ Sound

The 5507 is a relabeled ES1370. That was the information I missed! I guess most of the differences between these cards can be found here: https://en.wikipedia.org/wiki/Ensoniq_AudioPCI#ES1370 Looking at this, I guess the ES1371 is the way to go. So basically your choice is between some or other …

---

Re: Roland SCB-7 , thoughts?

Posted on 2018-10-08, 08:30

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

SRAM is "Static RAM" as opposed to DRAM "Dynamic RAM". SRAM is fast and expensive per bit and mostly used in caches and as RAM for controllers like such sound chips. DRAM is inexpensive per bit but in general slower as SRAM. It is used as RAM for PCs and servers. You can find it on SIMMs and DIMMs. …

---

SB PCI128 or SB AudioPCI ESS1371 - Which is better?

Posted on 2018-10-08, 08:09

by

by realoldguy23

in Marvin \ Sound

in Marvin \ Sound

Background: I'm going to rearrange my vintage PC landscape consisting of a K6-200/Matrox G200 based box and a PPro 200/Voodoo3 based box. The PPro will run only Windows 98 while the K6 will get my DOS6.22/Win3.11 "workload" - I noticed that the K6 can even run Wing Commander I at the right speed if …

---

Re: ECS Elite UM8810PAIO REV:2.1

Posted on 2018-10-08, 05:47

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

How do i go about flashing the bios on this? If it possible to flash it using software or is it a chip out into a programmer jobbie? https://i.imgur.com/MzjnsxXl.jpg The BIOS chip looks like it has a ceramic package, which is usually pointing to an EPROM, so no Flash chip. You would need to program …

---

Re: Roland SCB-7 , thoughts?

Posted on 2018-10-08, 05:30

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks a lot. Re: the SCB-7, I wonder if the two smaller Roland chips contain the 4MB ROM (2MB each?) wavetable sound sample set? The Roland chip on the top left (IC9) is most probably a ROM. The one on the lower right is most probably not. I've never seen ROMs with 80 pins. I'd think it is the bus …

---

Re: some questions about ps/2 mice

Posted on 2018-09-29, 16:18

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

and sure, PS/2 mouseport needs IRQ 12, but that could be surely be just reserved by hand in the BIOS anyway in many cases? No it doesn't work like that. When the hardware reports a mouse event via IRQ12, the driver needs to get the data (i.e. mouse moved, button pressed) from the keyboard …

---

Re: I de-CQMed my AWE32 PnP CT3990...!

Posted on 2018-09-28, 06:07

by

by realoldguy23

in Marvin \ Sound

in Marvin \ Sound

Offtopic, but really interests me ...is U8 original from factory or something you added? Asking because ZMD is one of the very few (formerly east) German IC manufacturers. I find that interesting, too. Just checked Wikipedia: https://de.wikipedia.org/wiki/Zentrum_Mikroelektronik_Dresden?wprov=sfla1 …

---

Re: Logitech Wingman gamepad ?

Posted on 2018-09-27, 16:53

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

One last thing you could try. I have Logitech Wingman Extreme (not 3D) joystick. The Logitech software from the FTP side works great but only versions 3.x and below, although version 4.x and 5.x still state in their readme files that they should support my joystick. Maybe you hit the same issue?

---

Re: some questions about ps/2 mice

Posted on 2018-09-27, 16:05

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

1. what's so special about ps/2 that it can't be just added to a PC without needing a driver? ISA i/o cards can add serial, parallel and game ports without needing any driver, but the only cards with ps/2 seem to be PCI cards that are basically USB devices needing a driver. 2. is there any …

---

Re: XT clone with 16-Bit slots ?

Posted on 2018-09-18, 15:39

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Of course they did use DOS software before, but plain CP437 textmode software such as Norton Commander, Turbo Pascal or dBase (-NC apparently was very popular over there; it was claimed that no russian/eastern DOS user ever saw DOS without NC-) did run on various DOS compatibles all over the world. …

---

Re: HP Vectra XA6 > Pentium Pro Motherboard

Posted on 2018-09-14, 16:30

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My PPro system has the same chipset (440FX Natoma). You don't need chipset drivers per se for Win3.11, only EIDE drivers. I installed the Triones DMA (Bus Mastering) EIDE drivers from http://www.vogonsdrivers.com/getfile.php?fileid=398&menustate=35,0 . They work without problems and provide 32bit …

---

Re: HP Vectra XA6 > Pentium Pro Motherboard

Posted on 2018-09-14, 12:30

by

by realoldguy23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

but i will never understand whats the deal with this pentium pro era to build a retro gaming PC, because the cpu is supposed to be really bad for 16bit WIn3.11 and Win95 &98. The CPU is not "really bad for 16bit". I use it mainly with mid-90s DOS games and early Windows games together with a Voodoo …

---