Cyrix200+ wrote:

Are you running it at a 100MHz FSB? Or on 112MHz?

m1919 wrote:

m1919 wrote:

Toying around with the XG-DLS rig, running into issue with a fairly consistent BSOD after booting into Windows. Currently runnin […]
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Toying around with the XG-DLS rig, running into issue with a fairly consistent BSOD after booting into Windows. Currently running XP. Seems to be some kind of hardware conflict as the bluescreen is referencing IRQL_NOT_LESS_OR_EQUAL error.

Only thing I can think of that may be causing the issue is I currently don't have any PS2 keyboard or mice so the machine may be wigging out due to USB keyboard and mouse combo. I did a quick test this morning for about 10 minutes of runtime in windows with just the keyboard plugged in and did not seem to get the bluescreen, which usually happens pretty quick after booting into windows.

Anyone else encounter this on old boards like this?

Does not appear to be hardware failure of any other kind as all other hardware in this setup worked on my other XG-DLS board. I ran through Windows XP install again but the process gets stuck when starting windows after setup file transfer is done. Also ran a few memtest86 passes and got a hardware related interrupt failure on CPU0 eventually, no actual memory error. I know these procs will do 112Mhz FSB so I'm assuming it's the USB devices as most likely there were very few USB keyboards/mice around back in the late 90s early 2000s.

Well, tested the XG-DLS with just my cheapo Microsoft USB laser mouse plugged in. Did not get a bluescreen with the machine just sitting idle for 3-4 hours, but when attempting to install 3dmark01, the machine just rebooted spontaneously, no bluescreen. Then during POST it got stuck in loop testing memory.

Looks like either I have some bad sticks which I can swap for another set or I can try cleaning the contacts and re-seating them... This machine is getting frustrating to deal with.

I can drop down to 112Mhz FSB and retest. Maybe this board does not like 112Mhz, I know the procs are good for it though as I was running these at 784Mhz on the other board for months with no problem.

I would do that, with an FSB of 112MHz you also overclock PCI (112 * 1/3 = 37MHz instead of 33MHz) and AGP (112 * 2/3 = 74MHz instead of 66MHz) (a bit), this board may have a low tolerance (I know that SCSI controllers also have low tolerance). Also the board is physically big and so there are long traces everywhere, that's also a bad thing for overclocking.

m1919 wrote:

I can drop down to 112Mhz FSB and retest. Maybe this board does not like 112Mhz, I know the procs are good for it though as I was running these at 784Mhz on the other board for months with no problem.

Just finished repairing a broken TeacFD-55GFR floppy which reported Floppy Disk(s) Fail (40) during boot. Turns out that the solder on the molex connector got so brittle that it basically fell apart making the contacts virtually nonexistent. I could almost remove the connector by hand!

So, I removed the PCB, resoldered the connector and now everything works 😀

Watching the computer chronicles on my tv.

Ever since I found the Mac drivers for that SideWinder 3D Pro after much sleuthing, I've gotten to work trying to make some good game profiles.

It's easier said than done, though, because I've noticed that the twist rudder (and probably the throttle too) will randomly drop keystrokes throughout its band range, perhaps a side effect of software keyboard emulation rather than hardware keyboard emulation. On top of this, having the same keystroke repeated between adjacent bands will just keep the key held instead of sending multiple keypresses.

This is fine for titles like Flying Nightmares where you just hold the , or . keys for full rudder left and right, not so much for A-10 Attack!/Cuba! where a single press of the key trims the rudder 1/4th of the way in either direction, pressing the opposite direction eases it by the same amount, and / recenters automatically. It's also not good if you want really fine control of your throttle in X-Wing/TIE Fighter beyond the usual "off, 1/3rd, 2/3rds, max" settings.

I am really wishing I had a proper ADB TM FCS and WCS setup right now, because both of those sims support it natively while I'm forced to use the SW3DP in its usual MouseStick emulation mode. I have yet to find any extensions that can emulate the TM-native API for old Mac sims, either; a little TM FCS/WCS/RCS to InputSprocket wrapping would do wonders!

Spotted an enhanced Intel 486 DX2 66 with Write Back Cache on eBay Australia for just 20 Aussie dollars, so I got it straight away. It arrived today and is working great.

It goes into a box with all the other 486 CPUs. Will check it out more thoroughly at another time.

Some photos and screenshots below:

Just did some benchmarks with my 486 Intel dx2-66 WT

Doom timedemo 3 = 28.59 fps or 2542 Realtics
Quake timedemo 1 = 7.3 fps
PC Player bench = 12.1 fps
Superscape = 48.2 fps

Clearly the speed difference for the L1 write-back cache shows up Phil

Imperious wrote:

Just did some benchmarks with my 486 Intel dx2-66 WT […]
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Just did some benchmarks with my 486 Intel dx2-66 WT

Doom timedemo 3 = 28.59 fps or 2542 Realtics
Quake timedemo 1 = 7.3 fps
PC Player bench = 12.1 fps
Superscape = 48.2 fps

Clearly the speed difference for the L1 write-back cache shows up Phil

Hard to compare different systems like though...

PhilsComputerLab wrote:

Imperious wrote:

Just did some benchmarks with my 486 Intel dx2-66 WT […]
Show full quote

Just did some benchmarks with my 486 Intel dx2-66 WT

Doom timedemo 3 = 28.59 fps or 2542 Realtics
Quake timedemo 1 = 7.3 fps
PC Player bench = 12.1 fps
Superscape = 48.2 fps

Clearly the speed difference for the L1 write-back cache shows up Phil

Hard to compare different systems like though...

True. I should have clarified what I meant was that it shows up in speedsys as fairly higher bandwidth for the L1. The rest is too close to draw any conclusions.

I see, true that.

Can I ask what kind of motherboard you are using Phil? I need to find one that works with the P24D 😁

RetroStorm00 wrote:

Can I ask what kind of motherboard you are using Phil? I need to find one that works with the P24D 😁

The World's Fastest 486 of course 🤣

Feipoa documented this board so well, I think I got mine 2 or 3 years ago from he US.

I made a simple streaming music player for my IBM 5160 PC/XT, streams from the ST-225 HDD to the internal PC speaker (so basically a stock machine): https://youtu.be/387mfVRLGBQ

Friend sent me a Slotket with a 1.1GHz celeron. Unfortunately it does not like my mobo.

Servers started moving in.

I've run out of rails however. The DL580, its two Smart Arrays, a PDP-11/23 and a twinax terminal controller do not have rails to mount them. That hole punched angle iron is also expensive. $20 for six feet.
I've also apparently misplaced my PDU's.

So I have run into the issue that on an ebay auction, I have received an important part less than was advertised in the listing. Now I messaged the seller and they claim that the item missing was never advertised as included. HOWEVER!!! The missing item was included in the title advertisement and described as functioning in the listing WITH pictures. Iv contacted the seller asking about this and they claim it was never advertised as included. . .Iv responded being understanding, referencing that the ad is the opposite of what they responded to me with. My question to ya'll is should I let it go or ask for a full refund if they refuse to even acknowledge their mistake?

ODwilly wrote:

So I have run into the issue that on an ebay auction, I have received an important part less than was advertised in the listing. Now I messaged the seller and they claim that the item missing was never advertised as included. HOWEVER!!! The missing item was included in the title advertisement and described as functioning in the listing WITH pictures. Iv contacted the seller asking about this and they claim it was never advertised as included. . .Iv responded being understanding, referencing that the ad is the opposite of what they responded to me with. My question to ya'll is should I let it go or ask for a full refund if they refuse to even acknowledge their mistake?

That depends, what is missing?

If its something that is absolutely required for the item to work and is allmost impossible to get hold of, ask for a refund, if its not required ask for a partial refund.

What did you order, its difficult to figure out if it is absolutely needed

CelGen wrote:

That hole punched angle iron is also expensive. $20 for six feet.

I've run into this recently when building a room for dry-curing meats. It's about $13 per 6ft here in the US if you go to home depot. Look in your area for metal wholesalers, if you find one it'll probably be much cheaper. One that I have nearby has all steel profiles priced at $1 per pound. If they have a scrap pile dig through it, it'll be even cheaper.

CelGen wrote:

Servers started moving in. […]
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Servers started moving in.

I've run out of rails however. The DL580, its two Smart Arrays, a PDP-11/23 and a twinax terminal controller do not have rails to mount them. That hole punched angle iron is also expensive. $20 for six feet.
I've also apparently misplaced my PDU's.

PA RISC servers on the left?

Sitting here on the floor working on rebuilding my LGA-775-Core2Duo (I know it only uses 1 of the cores) Win98se system from "parts strewn across the floor" in to a proper system inside a computer case. And working to convert the processor in to custom water loop (cpu only) in the process. Right now is just an allendale core2duo generic chip. Some day later it'll be a Conroe X6800 and need water cooling cause I plan to run it somewhere north of 4ghz in the end.

If anyone's interested I might run a thread on it somewhere.

EDIT: Made a thread on it anyway. ...