rick12373 wrote:

Well, I don't have PC-DOS 2000 and don't seem to be able to find it anywhere online. Would DOS 6.22 be the next best thing?

Yep, it's just a bit more bloated and takes up more resources...as usual with M$ products 😉

MS-DOS 7.1 is another alternative, and it has more extras.

Svenne wrote:

MS-DOS 7.1 is another alternative, and it has more extras.

I was thinking MS-DOS 7 only came with Win95...

Wrong.
http://ms-dos7.hit.bg/

I used to use a memory configuration program with DOS 6.22 (I think). I think it was called QEMM or something. Would that work with DOS 7.1? Or is there another program which will help configure your autoexec.bat and config.sys? Or is it even necessary to use such a program?

I'm sure we can help you tweak config/autoexec. You don't need QEMM or other such software. You'll be more compatible using MS mem managers.

Microsoft memmaker is included with DOS 7.1. Other help can probably be found on the internet.

bushwack wrote:

Svenne wrote:

MS-DOS 7.1 is another alternative, and it has more extras.

I was thinking MS-DOS 7 only came with Win95...

That's why I said 7 and not 7.1 😜

Guess I forgot about 7.1, I run 6.22 myself since I have the retail floppies.

Anonymous Coward wrote:

Here's an interesting one in the UK:

http://cgi.ebay.com/Old-Motherboard-486DX2-66 … =item414b3ae06d

I got an email from ebay this morning:

Sorry, you didn't win: Old Motherboard 486DX2 66 processor (280435023981)

I replied - Oh that's OK, I think I've got enough 486 mobos, but thank you for your sympathy. 😉

So, if the winning bidder is amongst us, why not tell us how you get on with it?! 😁

Well, it wasn't me!

rick12373 wrote:

In that step by step guide to hacking the chip he says right at the end that if he were to do it again he would try drilling some holes in and soldering in some wires so that an external battery can be connected. He has marked on a picture where this should be done but without paying and registering the site will not let you see a big version of the picture. That is annoying as it sounds like it may be an easier way to fix it. I haven't tried firing the board up yet but will try tonight. I put it in the new, old case I found yesterday, put in the graphics card and put a heat sink and cooler on the CPU (had a brand new 486 heat sink and fan in a box that had never been opened). You don't have to use thermal grease for these old CPU's do you? I couldn't see any on the old heat sink I took off.

I have ordered one of those chips from eBay. If I use it and get it to work I will let you know.

Did it arrive? I ordered one too. The packaging was poor - the pins were bent. It's just an old Dallas chip. And I mean old. The BIOS POST screen says the battery is dead. What a waste of time!

The existing Dallas chip was a "DS12887A" chip. The "new" chip does not have the letter "A" at the end, just DS12887. Also, one pin on the "new" chip looks as if it has been chopped off. Is this for the "internal RAM" - to store a password - which features on the "A" chips?

Maybe the BIOS POST error message of :

System battery is dead - replace and run SETUP
real time clock error

was a "false" error message. Perhaps the BIOS was confused about not finding a fully compatible Dallas chip for this mobo?

ALI Chipset? Why bother?

I haven't been able to put the system together yet. I have been busy with work and family. I got the chip though, and it looks like it is in prefect condition.

ux-3 wrote:

ALI Chipset? Why bother?

ALi is one of the better 486 chipset..has the best PCI performance of all 486 chipset

I've found a bug in the system timer on a ALI board though (M1487B1/M1489A1/UM8663BF)

Amigaz wrote:

ux-3 wrote:

ALI Chipset? Why bother?

ALi is one of the better 486 chipset..has the best PCI performance of all 486 chipset

That's probably telling of the glorious quality of 486 PCI chipsets. 😁

It was definitely not the finest hour of the industry.

swaaye wrote:

Amigaz wrote:

ux-3 wrote:

ALI Chipset? Why bother?

ALi is one of the better 486 chipset..has the best PCI performance of all 486 chipset

That's probably telling of the glorious quality of 486 PCI chipsets. 😁

It was definitely not the finest hour of the industry.

🤣, nope....it was more the rush of releasing new tech before it was ready for the consumers 😜

Amigaz wrote:

swaaye wrote:

Amigaz wrote:

ALi is one of the better 486 chipset..has the best PCI performance of all 486 chipset

That's probably telling of the glorious quality of 486 PCI chipsets. 😁

It was definitely not the finest hour of the industry.

🤣, nope....it was more the rush of releasing new tech before it was ready for the consumers 😜

Just like the initial implementation of the 1st generation AGP slots on the Socket 7 motherboards.

I may have owned 3 or 4 products with chips displaying their ALI symbol. I cannot say that I want to add another one. But then again, thats what I said about VIA some years ago and now I am gladly using their old stuff when circumstances leave no or little alternative.

Anyone here interested in an old P1 75MHz PC? It is about to be taken away for the waste dump... Dunno about ALI inside though. (iirc it is triton FX)

Might have an ASUS 486 Socket 3 Motherboard PVI-486SP3 soon. So I will not have to deal with Dallas chip anyway! Joy!