Re: ET4000AX ISA - swap 80ns DRAM for 70ns?
Posted on 2021-12-06, 21:20
Only relevant if you overclock the graphics card to get higher refresh rates on CRT. But usually increasing decoupling capacitance is sufficient if problems occur.
Re: When will high power supplies become single ICs?
Posted on 2021-12-03, 21:32
I guess it is only a matter of time until we get complete hybrid switching regulators in the TO-220 package that can replace linear regs and electrolytics. OT: I quite like the idea of house level 24V DC distribution. Not so good if there is humidity somewhere. There are still most tramways using DC …
Re: Anybody has info on this monitor: Reuters CMV123NE?
Posted on 2021-12-01, 21:38
The outside is meaningless, Reuters is a news agency. I guess it's an OEM VGA thingy. Just open it and look at the circuitry to find out who made it and what it does.
Re: How over powered are modern PCs?
Posted on 2021-12-01, 09:16
While I can't agree on the 4570 (I use one myself), I definitely agree on the RAM. 8GB is about the minimum now. After I upgraded to 32GB (2400MHz) I'm quite happy again. Now I can have >100 tabs opened again. Only thing that needs an upgrade is the GPU (GTX 560 lol). But not at the current prices. …
Re: On various cards, video, controllers, EIDE, SCSI, BUS speed, DOS, Win 3.xx, etc.
Posted on 2021-11-30, 23:27
Was UW SCSI already a thing in 94/95? Isn't PIO mode slower than busmaster DMA (SCSI)?
Re: I got a new 486 motherboard today. Couple of curious questions.
Posted on 2021-11-30, 23:18
Using a multimeter, find out which ones are GND and +5V, you don't want to have these wrongly connected. Clock and data, there are only two possibilities and it should not be critical if being connected wrong way for a brief test.
Re: What's the dumbest retro mistake you've made?
Posted on 2021-11-30, 23:12
Ouch 😿
Re: What's the dumbest retro mistake you've made?
Posted on 2021-11-30, 03:08
cyclone3d wrote on 2021-11-28, 05:15: That's an easy fix. Not really if you have two left hands and are a coffee addict. Maybe I could manage LGA 775, but this was LGA 1366. The damage was limited however, the pin affected controlled a bank of RAM, so the board was still usable, just with a bit …
Re: can't write CD image to DVD media
Posted on 2021-11-29, 12:45
DVD have a smaller sector size, don't support the raw audio CD sector size of 2352 bytes.
Re: Running GPUs and soundcards from different generations on one motherboard
Posted on 2021-11-28, 21:38
@cyclone3d Ah I see... too sad neither of these seem to be an easy way to use DOS Soundblaster on non-ISA board without DDMA connector :crying_cat_face: You can have a PCI and an AGP video card in the computer at the same time. You can use the BIOS setup to select the primary video source at boot …
Re: Running GPUs and soundcards from different generations on one motherboard
Posted on 2021-11-28, 03:34
a 32PCI to 16ISA adapter Never seen this. What is this? Does such an adapter support ISA DMA? The major downside to this is not being able to “Restart in MS-DOS mode” and just WIN yourself back into the GUI; Best way is to configure Windows so that it does not power off when "shutting down". And do …
Re: What's the dumbest retro mistake you've made?
Posted on 2021-11-28, 01:01
Handling a mobo without dummy CPU in place.
Re: IBM 5151 Horizontal Linearity Adjustment
Posted on 2021-11-27, 11:37
Or it was of metal. Only plastic tools should be used for adjusting coils.
Re: Possible to replace 1MB BIOS ROM with 2MB ROM?
Posted on 2021-11-26, 19:21
Don't use EPROM, its programming works totally different. The first one (EEPROM) should work. But you can also take any used 2Mbit chip for this which you salvaged from a dead/useless mobo.
Re: Possible to replace 1MB BIOS ROM with 2MB ROM?
Posted on 2021-11-26, 17:01
just make sure the extra address pins' levels don't matter: copy /b source.bin+source.bin target.bin
Re: IBM 5160 earlier model motherboard repair question
Posted on 2021-11-25, 21:22
Maybe rocking the switch one or two dozen times could help scratch off some oxidation layer?
Re: FPS Games: REQ Reducing head-bob (preveting nausea)
Posted on 2021-11-25, 16:23
I guess back then the bobbing effect was sort of kind of programmer's art, with the aim of pretending "action", just because it was possible. They must have been even proud of that. The seizure problems probably was what cured this idiocy. And I agree, source ports usually are preferrable just to …
Re: IBM 5151 Horizontal Linearity Adjustment
Posted on 2021-11-25, 16:07
Maybe just get a worn-out 5151 and take its inductor. If it also has this nail polish, you can try softening/dissolving it. But first try at another place whether the material can resist ethanol, IPA or even acetone. Using ethanol is safer, but takes some time to soften the glue.
Re: [486DX2-66 VLB] No POST if S3 Vision864 VLB + VLB Multi-I/O controller cards are connected
Posted on 2021-11-25, 15:57
One of the reasons why I don't consider VLB good. It's just gambling, especially if you use cards from inferior manufacturers like Miro, in this case. Maybe try a Spea Mercury VLB instead? Spea usually made outstandingly good stuff. (Miro bought cheap Taiwan stuff and sold it as "German quality". …
Re: AT Powersupply Wiring
Posted on 2021-11-24, 20:34
Normally there are two pairs of wires, colored and non-colored. I do not recall which pair connects to mains and which connects to the PSU. But for a power switch this is quite irrelevant. This is all what one needs to know.
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