Re: The Socket 3 POD83 and overclocking
Posted on 2022-01-29, 15:34
Thanks, I don't know how I missed that thread. The diode mod looks indeed neat.
Re: Putting a 32-pin flash chip (XTIDE) into a 28-pin ROM socket
Posted on 2022-01-29, 14:55
For XTIDE you can use the still widely available W28C512, 64kB in 28-pin package. They are easy to find and cheap. No tricks needed. https://media.digikey.com/pdf/Data%20Sheets/W … DFs/W27C512.pdf
Re: The Socket 3 POD83 and overclocking
Posted on 2022-01-29, 14:41
11-year-old thread necromancy warning! I know it's an old one, but sometimes I feel that it's better to continue one of these old threads and build upon the ideas already contained within, rather than start anew. So I'm resurrecting this one. I've been working lately on a 486 PCI motherboard, …
Re: Happy Days! Obtained my ultimate dream setup from my High School days!
Posted on 2022-01-28, 20:30
🤣 you're a hoarder... like me. 😀
Re: Happy Days! Obtained my ultimate dream setup from my High School days!
Posted on 2022-01-28, 20:21
HDDs, depending on quality can be surprisingly reliable. I have a stack of SAS2 drives in a raidZ array going very strong for several years 24/7. 8 active drives plus 2 spares just in case, none of the spares needed to be swapped in so far. Not new drives, they were at 50000 hours when I got them, …
Re: Happy Days! Obtained my ultimate dream setup from my High School days!
Posted on 2022-01-28, 20:00
see my 2nd post above for the drives. (edit) here it is again https://www.ebay.com/itm/151962539115
Re: Happy Days! Obtained my ultimate dream setup from my High School days!
Posted on 2022-01-28, 18:05
Oh those racks look nice. I use something similar with my home server (only SAS not SCSI). BTW these are the drives I mentioned: https://www.ebay.com/itm/151962539115 (not my listing either, I don't sell on ebay). I have purchased several of these in the past and had no problems with them.
Re: Happy Days! Obtained my ultimate dream setup from my High School days!
Posted on 2022-01-28, 17:53
I assume you'll pair some UW SCSI drives with this monster. 😀 I have saved in my ebay wishlist a listing for some IBM 146GB 10K U320 SCSI drives which would pair well.
Re: Journey of a Unisys Aquanta HS/6, aka ALR Revolution 6x6
Posted on 2022-01-28, 14:36
Yes, the kernel is by default SMP-enabled. The default and recommended one is sys-kernel/debian-sources, which is currently at 5.15.5
Re: Early P5 + P54C (Socket 4 + Socket 5) mainboard
Posted on 2022-01-28, 14:16
TL-866 is the go-to tool for that
Re: Journey of a Unisys Aquanta HS/6, aka ALR Revolution 6x6
Posted on 2022-01-28, 13:53
Funtoo has a dedicated i686 stage3 https://www.funtoo.org/I686 which can be used for installing on PPro-class machines. It supports multithreading of course, all you have to do is set one parameter in a config file with the number of logical processors (/etc/portage/make.conf, add parameter MAKEOPTS …
Re: Behold this gem: USB to ISA adapter!
Posted on 2022-01-28, 13:44
Has anybody here tried this USB ISA card from Aliexpress? https://www.aliexpress.com/item/1005003265361366.html?spm=a2g0o.cart.0.0.25a13c00dlzVS4&mp=1 It has an empty socket. Could this be used for an XT-IDE ROM, or a DOS ROM? That doesn't appear to be a USB/ISA adapter. The description says it's …
Re: Journey of a Unisys Aquanta HS/6, aka ALR Revolution 6x6
Posted on 2022-01-28, 13:16
Install Gentoo. 😀 I'd be curious how long it takes on a 6-CPU PPro/200. 😁 (or better yet, install Funtoo which is even better https://www.funtoo.org/ )
Re: A PCI 486 motherboard: Protech PM486PU-S4
Posted on 2022-01-28, 12:50
I thought I'd put here some pics of the passive cooler I have on the PODP5V83 right now. This overdrive was in a sorry state when I got it, the fan and heatsink had been ripped off, many badly bent pins, one pin missing and one pin short. I unbent all of the pins carefully, turns out the missing pin …
Re: A PCI 486 motherboard: Protech PM486PU-S4
Posted on 2022-01-28, 01:44
This is BTW the Quake bundled with Phil's DOS benchmark pack. It runs fine on another board, with both HIMEM and EMM386 active (a socket 7 board). (edit) it does work with HIMEM only. It's funny because on the socket7 board it worked with both HIMEM and EMM386 off the same drive. The exact same …
Re: A PCI 486 motherboard: Protech PM486PU-S4
Posted on 2022-01-28, 01:08
Yeah for a 486-class system, I think I pushed it as far as it goes. I tried overclocking that PODP5V83 with 40MHz FSB; it boots, but some benchmarks fail. I'll stay with 33MHz/83MHz. (update) Quake runs only if I boot without himem/emm386. Weird.
Re: A PCI 486 motherboard: Protech PM486PU-S4
Posted on 2022-01-28, 00:49
Yeah that worked. I placed a piece of copper foil on top of the fan-sense and ground pads, and secured it with some kapton tape to the CPU. It's a temporary fix until I make something permanent, but it tested fine. Did some benchmarking, it runs approximately 25% faster than the DX4/120MHz. But for …
Re: A PCI 486 motherboard: Protech PM486PU-S4
Posted on 2022-01-27, 21:07
Excellent. 😀
Re: A PCI 486 motherboard: Protech PM486PU-S4
Posted on 2022-01-27, 20:35
If I don't find anything obviously fixable under J11, I'll leave it be. I have decent 5V CPUs to use with it. Speaking of which, the POD5V83's fan is dead; that's not a problem, I have plenty of small fans I can strap on top of it. The only issue is that if this overdrive senses its fan module is …
Re: A PCI 486 motherboard: Protech PM486PU-S4
Posted on 2022-01-27, 19:32
I've measured those 2 resistors, I have the values written down somewhere... IIRC one was 250 ohms and the other 430 ohms. The 3.15V midpoint is the right value to generate a 3.375V at the regulator output, which is a viable one within specs of both 3.3V and 3.45V CPUs. It was often done this way. …
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