Re: Chicony CH-498B voltage regulator mod help.

Posted on 2021-10-20, 23:04

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This manual is the same I used to create the pdf. However like I said I own the entire manual, I scanned it, I now need to assemble it into a pdf (and perhaps ocr it) Edit : it's online on the win3x page ! Do you also have that 3.07 version bios? I see you made a pointer to it. But it doesnt seems …

---

Re: Last time ordering from electromyne :-(

Posted on 2021-10-20, 22:59

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Nemo1985 wrote on 2021-10-20, 22:23: To my experience when I enquired electromyne they replied in some hours. If they not respond, they have something to hide. Or already know what they have shipped.

---

Re: Chicony CH-498B voltage regulator mod help.

Posted on 2021-10-19, 21:58

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

R20 ? brown red blue black violet ? 126 R21 brown black red orange brown ? 102K R.. brown red brown silver silver that don's make sense other way round and silver is gray sigh... 881 Wait a minute... there's only place for 5 on OP's board, but deksor's board has six. silver red green red brown ... …

---

Re: De-Turbo AM486-DX4 120 Mhz

Posted on 2021-10-18, 23:40

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ok, I thought that it would be possible to use a 120Mhz part and de-turbo it to like 60 Mhz.. Should be ideal for games that would run fine on a 66Mhz clocked cpu. So after reading the second post, that wouldnt be possible..

---

Re: Chicony CH-498B voltage regulator mod help.

Posted on 2021-10-18, 22:15

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here is the BIOS dump. Bios string 40-E301-001116-00111111-121593-UMC498-H In the photo I can't read the model of the voltage regulator, maybe the resistors color but no the model of the MIC, thanks. Its a MIC 29152BT I guess that one is also used on their CH-471B motherboard. I think that the …

---

Re: Chicony CH-498B voltage regulator mod help.

Posted on 2021-10-18, 22:08

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Too bad I didn't see this post before, I have this exact same board (here http://www.win3x.org/uh19/motherboards/7821) Though I got mine this year, it wouldn't have been possible back in 2020. In the meantime, could you please dump your bios ? There seem to be many revisions and mine isn't the …

---

Re: Chicony CH-498B voltage regulator mod help.

Posted on 2021-10-18, 22:05

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here is the bios from my motherboard. Seems to be version 3.03 40-P303-001116-00101111-072594-UMC498-H

---

De-Turbo AM486-DX4 120 Mhz

Posted on 2021-10-18, 01:30

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What is the actually processor speed, when you de-turbo a AM486-DX4 120Mhz cpu?

---

Re: Chicony CH-498B voltage regulator mod help.

Posted on 2021-10-17, 23:58

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Did you already found your solution for this? I do have a Rev 2.0 with these resistors installed. I can make a picture tomorrow if you want.. But will post the picture to help others out as well. There seems to also be yellow small capacitors inside the cpu socket.

---

Re: How do i remove this f*cking heatsink?

Posted on 2021-10-10, 12:57

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If its to hard the remove the cooler. I would recommend to use a little grinding / cutting tool like a dremel and would cut the metal band on the edge of the motherboard where is the most space to do so. The mounting clip from the cpu socket could easilly brake of, when you trying to apply to much …

---

Re: creative 3d blaster annihilator pro CT6970 bios

Posted on 2021-10-10, 00:34

by

by Robin4

in Marvin \ Video

in Marvin \ Video

Hello, I know this is an old thread and my account is brand new, but I have the driver cd and the bios utilities are in it so I just copied it. It's for the Creative 3d Blaster Geforce 256 Annihilator and Annihilator Pro. In the CD they say the drivers and bios are for the CT6941 and CT6971 but I …

---

Re: Fic FTP site is gone. We lost most of the drivers

Posted on 2021-10-05, 00:05

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I also have a (very incomplete) AOpen FTP mirror from the same year, but it's not much of a priority right now. there's a ton of stuff on the AOpen FTP, and it could go dark any day now - might want to back that one up too Yeah, my backup stops at /pub02/drivers/ somewhere and I stopped since …

---

Re: Time to ask before I do some damage Gigabyte GA-486VF rev7

Posted on 2021-10-03, 23:43

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

thx for your response.

---

Re: Anyone recommend a good slot 1 mobo for a Pentium 2 cpu?

Posted on 2021-10-03, 22:41

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For me the brand doesnt matter. I follow these rules. + I would never go with LX chipset, only if you cant find anything better.. + If you go for BX then 100Mhz FSB would be supported as well. Further it depends on the cpu you want to use.. If its a 100 FSB one, any board should work fine. (bx only) …

---

Re: Time to ask before I do some damage Gigabyte GA-486VF rev7

Posted on 2021-10-03, 22:26

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I just Love old Tech in general Horun .. VCRs from the 80s ...PCs and Retro Computers in general ..Reel To Reel tape recorders etc etc.. but then I am a child of the 60s and 70s.. My motto..if it can be fixed..it should be fixed. ..and to prove that love... Here is the first snapped image of this …

---

Re: what kind of card is this ??

Posted on 2021-09-29, 00:39

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I dont think it is a gameport / joystick port.. I think its a industrial card. Maybe an interface card.

---

Re: Looking for information on an A-Trend ATC6240V-01 with 440BX chipset

Posted on 2021-09-29, 00:36

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have also this kind of motherboard. My Atrend board is called: ATC6240 without anything. Its a gold kind of board v2. Because its Intel 440BX it should be ATC6240M

---

Another ST JUKO motherboard V20. Cant identified it. Missing bios.

Posted on 2021-09-25, 23:03

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Almost done with my Vtech laser XT/3 8086 system.. Mostly is still configure it and add soundcard and network card to it. Which i can do later. Now there are more things to check if its working / dead or can be revived. Starting with a next STjuko Clone V20 motherboard. Is there anyone who can …

---

Re: JUKO NEST XT board questions (manual attached)

Posted on 2021-09-25, 13:05

by

by Robin4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Anonymous Coward wrote on 2021-09-25, 09:33: Anyone have any idea what jumper locations J11 and J9 might do? They are unsoldered on my board, and not mentioned in the manual. If I had to guess, I'd say J9 probably controls DRAM wait state 0/1, and J11 might be duty cycle 33%/50%. Maybe set the …

---

Re: MS-DOS 4.01 Good or Bad?

Posted on 2021-09-25, 13:01

by

by Robin4

in Marvin \ Software

in Marvin \ Software

4.01 have the benefit to support larger hdds over 3.31 , then you are limited on 32MB partitions. I think if you using an expended memory board, memory wouldnt be a problem i guess. DOS 5.0 doesnt really make any sense of High memory stuff, it works different on an XT anyway. I only would use 5.0 on …

---