Re: 440BX memory detection / SPD hacking
Posted on 2014-12-04, 16:07
I realize that, but I don't think that's a valid reason for it to ignore the SPD data altogether...
440BX memory detection / SPD hacking
Posted on 2014-12-04, 14:06
I was wondering how memory detection works on a 440BX board. From experience I know that most 256/512MB DIMMs are often detected as half their actual capacity. I never understood how that worked, and never really cared either. But now I'm getting curious. Earlier this week I bought some SDRAM …
Re: Short on ISA slots? Try this.
Posted on 2014-12-04, 14:02
here is pretty much same idea as yours had used this and encounter issues described above. there is exists termination resistors, but on bridge card, not on extension card. also i know of one case of using same connections as yours on mb with soldered it8888 chip, but issues is same. shorter cables …
Re: Bought these (retro) hardware today
Posted on 2014-12-02, 15:37
Got some SDRAM DIMMs today. Kingston 512MB PC133 CL2 ECC/registered 😀
Re: Short on ISA slots? Try this.
Posted on 2014-12-02, 15:36
Have to mention that chipsets with native isa support is much more tolerate to ribbon cables connection. Think it's due to more signal strength on isa lines. If you will try same thing (backplane connection thru ribbon cable) on pci-isa bridge chip (ite or winbond at least) you'll face with some …
Re: Short on ISA slots? Try this.
Posted on 2014-12-01, 20:49
P3b-f has a version with 2 isa slots, just like p2b and p2b-f. Back in the days i bought the p3b-f new and could choose between both versions: one extra isa slot or one extra pci. Google ''p3b-f 2 isa slots'' and you will find pictures of it. That's right, and I already knew: you can clearly see …
Re: Short on ISA slots? Try this.
Posted on 2014-12-01, 19:53
Also, since it's all being powered through the motherboard, aren't you worried that something's going to fry or blow up? Digging some more into this: I can't find any specifications online about maximum power draw from the ISA bus, so I presume there's no real standard for this (does anyone know?). …
Re: More text on screen
Posted on 2014-12-01, 18:46
Tried out some of those fonts, histd.com is great (I have a feeling I already made a similar thread). Cols and rows? I used cols and lines :dead: Thanks for the values and the link, i will check it out. Is it complicated to import existing fonts as dos fonts? [E] Still error when i write: MODE CON …
Re: More text on screen
Posted on 2014-12-01, 17:59
MODE CON: COLS=xxx ROWS=yyy should get you pretty far, at least for the standard resolutions like 80x50, 80x60, 132x50, 132x60, etc. Japhet wrote a set of programs to set some funky resolutions like 100x37 with 8x16 font. His website's been down lately so here's an archived link: http://web.archive. …
Re: Short on ISA slots? Try this.
Posted on 2014-12-01, 14:21
Doesn't running that many cards on the ISA bus all at once slow things down a lot? That's right, it'll slow down a bit if you run several cards simultaneously. Realistically though, under normal use, how many cards would you use at once? For myself, I might fill the backplane with sound cards but …
Re: Short on ISA slots? Try this.
Posted on 2014-12-01, 02:31
I think I'll bolt two small ATX cases together, and cut holes for the cables to run through.
Re: Post your 'current' PC
Posted on 2014-12-01, 02:22
Wow I thought this was a crappy monitor because it's fuzzy with text It shouldn't be, with a 0.20mm horizontal dot pitch :O and such BUT HOLY COW on video games its freaking amazing, gone are all those Jagged lines and edges that you see on an LCD monitor. :O Now try that again on 800x600 at 160Hz …
Re: Short on ISA slots? Try this.
Posted on 2014-12-01, 02:15
Uh......That's my worst nightmare with IRQ's. lol Yeah, IRQ hell is more or less inevitable if you'd fill all those 20 slots.. I didn't try it with that many cards yet, just filled it up to take that picture :) The reason I came up with this idea is because I'm looking to upgrade from an Asus P2B …
Short on ISA slots? Try this.
Posted on 2014-11-30, 23:10
- THE PROBLEM: Do you always keep swapping cards around all the time? Have you ever discarded a mainboard, just because it only had one single slot? Do you have trouble deciding which cards to install in your time machine? Wouldn't you rather be able install ten sound cards in one machine? Nope. …
Re: Voodoo 3 2000 125MHz?
Posted on 2014-11-28, 17:20
Maybe the previous owner clocked it down? How could he've done this permanently while still having a 2000 BIOS? Plus, sorry I forgot to tell you guys, there is a second identical card. Looks like a standard 2000 with some ancient BIOS version. Clock settings are stored in the BIOS, flash it with a …
Re: Voodoo 3 2000 125MHz?
Posted on 2014-11-28, 16:23
Looks like a standard 2000 with some ancient BIOS version. Clock settings are stored in the BIOS, flash it with a normal 2000 version and it'll run at 143 😉
Re: Data recovery help
Posted on 2014-11-28, 14:19
Believe it or not, I got my files back. Using a hex editor, and this web page: https://www.pjrc.com/tech/8051/ide/fat32.html Some file was apparently written on the wrong sector offset, overwriting the first sector of the GAMES directory. Then, since the directory seemed empty, the second cluster …
Re: Macintosh Plus analog board not regulating voltage
Posted on 2014-11-28, 11:27
I have no experience with these (andnot too much with switching power supplies in general) but I found a schematic/manual here: http://home.earthlink.net/~gamba2/images/plus_analog.PDF I'd check for a switching signal from U3 first. If there is none, the fault lies somewhere in the feedback circuit. …
Re: IBM 5151 monitor repair
Posted on 2014-11-27, 17:26
I'd replace C603 and C409 just in case. The regulation stage is so simple that there's very little that can fail, and using the shotgun approach might be quicker than actual troubleshooting. Yeah I've replaced all the electrolytics already, and will leave them in. I think it'll be good as new again …
Re: Does anyone know some stuff about old stereos?
Posted on 2014-11-27, 01:24
Here's a pic of my 5010: http://i.imgur.com/eaW8pZJ.jpg There's a four-channel version of this receiver too. Look up the JVC 4VR-5445 ;) My friend, who is into quadrophonic sound, has one of these: http://i.imgur.com/SplzqDf.jpg The JVC 4VN-990. This one has a very interesting design. The whole …
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