Re: Attempting to flash my 486DX2 66 board by Award

Posted on 2024-03-14, 03:34

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Would I be able to use something like this; https://a.co/d/1R341tr maybe, most of us use this:IMG_2803.jpeg You will need an UV eraser also though. It’s a really bright UV light. Not like a black light or sunlight. It’s very intense. Yep, that's what I use. A cheap source of UV erasers is UV …

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Re: Adding 3.3v to pci adapter(Released)

Posted on 2024-03-14, 01:35

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sphere asked me to post this here: I made a mini PCI Voltage Blaster for +3.3V. This is useful for those +5V keyed cards that need +3.3V to work. Like the "new" Chinese made ATI Rage XL PCI cards all over eBay. As noted above, many +5V only boards do not route the +3.3V pins. So you'll need to bodge …

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Re: 486 stability issues

Posted on 2024-03-14, 01:26

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Win9x does not handle being constantly forced to swap very gracefully. This is part of why WinNT/Win2k hork less than 9x does. You could try using OS/2 as well, but even then, I'd want more RAM (16MB or so) LMAO OS/2 is a dumpster fire and is worse, in every way, than Win9x. This recommendation is …

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Re: 486 stability issues

Posted on 2024-03-14, 01:24

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I used Win 95 "A" on a 486 with 8MB of RAM daily in 1995 and it ran fine. I played tons of games and wrote tons of documents on it. People saying it's unstable because of system specs have no idea what they are talking about.

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Re: Attempting to flash my 486DX2 66 board by Award

Posted on 2024-03-14, 01:20

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

the board I am flashing: https://theretroweb.com/motherboards/s/fic-486-gvt#bios Is there a particular flash program just for this particular bios and motherboard cause I was told that this would be the ideal forum to discuss this. I was also told I can try the AMI rom bios as well as the Award …

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Re: Benchmarks DOS vs WfW3.11 vs Win95B

Posted on 2024-03-13, 22:40

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It would be interesting to know why Win95 has such an advantage in storage throughput when it isn't likely to be multi-sector transfers. Perhaps it is because it is using 32bit protected mode commands for its PIO operations. Yes. VCACHE algorithm was also improved over WFW. WFW only uses VCACHE if …

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Re: Your most shitty motherboard?

Posted on 2024-03-13, 22:35

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Also had a HP Vectra 486 which was easy too slow, probably because it had no cache at all and couldn't even be added. Let's all hail HP for them inventing the idea of the Covington Celeron core before the Pentium Pro was even a thing! Running a 486 system with contemporary RAM without L2 cache is …

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Re: Your most shitty motherboard?

Posted on 2024-03-13, 07:51

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

- Most if not all socket 478 SDRAM boards. These things are HORRIBLY slow. I don't know if it's a fault of the boards themselves, More the fact that the Pentium 4 (Willamette particularly) was a horrible CPU design that was slower than the Pentium III and was designed for much faster RDRAM and DDR …

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Re: Ideas for fixing floppy drive head

Posted on 2024-03-13, 04:54

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The coil could be broken or the amp chip for the head is dead. Those are the two common issues in my experience when one head has no signal.

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Re: EPROM Programmer Help

Posted on 2024-03-13, 04:51

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There's a command line linux software package for the TL866II but I forget the name.

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Re: USB mouse lags when opening program

Posted on 2024-03-13, 01:49

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It’s not uncommon on older systems to have the mouse be a bit laggy when the computer is doing a lot, freezing for 10 solid seconds sounds a little excessive but in general when the computer was doing a lot it wasn’t uncommon for the mouse to be impacted. This is a bad take. This isn't s a 286. I …

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Re: What hasn’t been done?

Posted on 2024-03-13, 01:42

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

megatog615 wrote on 2024-03-11, 16:43: got a link to a gerber and BoM? Here ya go: https://github.com/chadr/PCI-Voltage-Blaster I made like 10 of them. If you want a few I can send you some.

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Re: How to remove this backplate safely?

Posted on 2024-03-11, 16:58

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Remove the four torx screws. It's attached to the clamping mechanism. The socket itself is soldered on the board.

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Re: What hasn’t been done?

Posted on 2024-03-11, 16:39

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

- ASUS 5V to 3.3V PCI power card replica ( see here ) I made one of these. The problem I ran into is that most motherboards don't have the +3.3V pins routed between slots. Is there an easy way to tell, such as with a multimeter? Sure just probe between slots on the +3.3V pin(s). You can check on …

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Re: What retro activity did you get up to today?

Posted on 2024-03-11, 07:16

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Replacing a blown VIA VT6103 10/100 network controller chip on this EPIA motherboard. Filename IMG_1876.jpg File size 394.86 KiB Views 812 views

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Re: Full recap of Chieftec CFT-650-14C PSU - I need some info about its electrolytic capacitors

Posted on 2024-03-11, 06:15

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Teapo SC and Samxon GF are low ESR, you can replace those with Nichicon UPW series or equivalent. Samxon RL and Jun Fu HS are general purpose (note the max. ripple being specified at 120Hz instead of 100KHz in the datasheets), so anything 105C rated should work there. Do try and get some decent …

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Re: What hasn’t been done?

Posted on 2024-03-11, 04:22

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

pvlst wrote on 2024-03-10, 21:22: - ASUS 5V to 3.3V PCI power card replica (see here) I made one of these. The problem I ran into is that most motherboards don't have the +3.3V pins routed between slots.

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Re: Strange socket 7 USB header issue

Posted on 2024-03-11, 03:55

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sphere478 wrote on 2024-03-11, 03:41: Try to avoid an add in card. They will slow this system down by as much as a 1/3 in benchmarks. Especially the usb 2.0 ones. The USB controller in the chipset will be internally connected to PCI just like an addon card, won't it?

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Re: Full recap of Chieftec CFT-650-14C PSU - I need some info about its electrolytic capacitors

Posted on 2024-03-11, 03:22

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Teapo SC Series Datasheet: https://jamicon.teapo.com/upload/Capacitor/Series/SC.pdf Samxon RL Series Datasheet: https://www.paullinebarger.net/DS/Samxon/Samxon%20%5bradial%20thru-hole%5d%20RL%20Series.pdf Jun Fu HS Series Datasheet: https://www.junfu.com.tw/english/01_pro/download.php?f=en_product_ …

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Re: Strange socket 7 USB header issue

Posted on 2024-03-11, 01:37

by

by kingcake

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

According to the manual for that board it's a 8 pin usb header with non standard (by today's use) pinout. Filename Screenshot 2024-03-10 203649.png File size 46.66 KiB Views 420 views

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