Re: Is it "OK" if one pin on a 386 CPU pin is broken?
Posted on 2011-01-25, 14:57
PS - here's a bit of ridiculous silly "fun". Look at the photos above, and then roll your wheel mouse up and down. Well, it made me smile, but then again I'm stupid.
Re: Is it "OK" if one pin on a 386 CPU pin is broken?
Posted on 2011-01-25, 14:54
Thanks very much for the info. I have just double-checked this CPU: I put it back in the mobo, and powered on the system. It works. Please trust me people, this thing's alive. Please look at the updated photo, below. Look at the hand drawn line+arrow. That's the direction that I hold and then flip …
Is it "OK" if one pin on a 386 CPU pin is broken?
Posted on 2011-01-25, 13:20
I had trouble pushing this Intel 386DX-33 CPU in to the CPU socket. At first, it wouldn't work. I powered on the system, and the BIOS POST screen was full of garbage. I pulled it out, then pushed it back in again. That worked - the system was useable. I tested Windows 95, and ran WinTune 97. I also …
Re: 5 1/4" disk buying advice needed please
Posted on 2011-01-25, 11:54
Thanks a lot Malik! 😀
Re: Complete newbie advice on ISA video cards required please
Posted on 2011-01-25, 09:51
For the missing pin hole you can either drill a hole, get an adapter (nothing complicated really) or cut the pin out of a cable (this cable will then not be fully DDC compatible anymore so use a spare one). For drilling this hole, please can you suggest what tool I need to buy? Also, for the …
Re: 5 1/4" disk buying advice needed please
Posted on 2011-01-25, 06:50
Thanks a lot for the info, people! 😀 I have one follow up question: Can you format a double sided high density disk (1.2mb), so that it acts like it's a double sided double density disk (360Kb), because I think that some of my other SSI RPGs are in this format. Thanks.
Re: Complete newbie advice on ISA video cards required please
Posted on 2011-01-24, 20:55
The 386 mobo manual says this, about all available bus clocks - CLK2/10 CLK2/8 CLK2/6 CLK2/4 7.2 MHz CLK/4 CLK/3 CLK/6 7.2 MHz It then says - CLK2 equals the OSC speed of motherboard. (CLK equals the OSC speed of a 486 daughterboard). If for example CLK2/6 = 80/2/6 = 6.6, then the bus clock options …
Re: 386DX40 build
Posted on 2011-01-24, 18:24
Thanks a lot for the info. For the time being, I will test the 386 with DOS and Windows 95. I might try Win98 some other time. I removed the AMD 386DX-40 chip, and installed an Intel 386DX-33. I tried it with the 80 and 100 MHz oscis. The 80 worked, while the 100 did not work. With the 80 MHz osci …
Re: 386DX40 build
Posted on 2011-01-24, 14:51
I'm going to try this test: I'll do a clean install of Windows 98 SE on to a CF device, using a slot 1 mobo. Then, I'll take that CF, and stick it on to the 386 mobo. I'll set the 386 to max speed, and then run software like SiSoft Sandra and Everest. Hopefully, that will tell me a bit more about …
Re: 386DX40 build
Posted on 2011-01-24, 12:01
elianda wrote: How do you measure your ISA CLK rate? I do not know how to measure the ISA CLK rate. Please can you tell me? Thanks a lot! 😀
Re: 386DX40 build
Posted on 2011-01-24, 11:41
You might have already posted this but do you have a sound card installed in this system that works ok at the 25MHz bus speed? My SB Pro would just crackle andf hiss at higher bus speeds. I've just tested this. I set the mobo bus speed to 25 MHz, with the 100 MHz osci, and so the CPU runs at 50 MHz …
Re: 386DX40 build
Posted on 2011-01-23, 20:30
Update / Semi-correction: I have spent a couple of hours, pulling out cables, components, etc. I could not understand what the problem was. I pushed everything back in to place, and it's possible that an IDE cable or a power lead was slightly loose on the IO controller. The end result is that I …
Re: 386DX40 build
Posted on 2011-01-23, 18:01
OK, thanks a lot. They told me they have 6 12ns chips. I think 9 would have been a good number to get, for 256Kb of cache, but 6 is still good. I asked them how much shipping costs... Anyway, I did some more testing on the 386 mobo. I set everything to max, and Windows 95 works fine. When I say max, …
5 1/4" disk buying advice needed please
Posted on 2011-01-23, 17:46
I want to back up some of my 5.25" game disks. Some are 1.2MB disks. What format would that be? double sided double density? I spotted these 5 1/4" disks on ebay, but the box says 1.6MB. I've never seen disks like that before. Would they be incompatible, if I wanted to make working duplicates of …
Re: Complete newbie advice on ISA video cards required please
Posted on 2011-01-23, 11:55
I ran the ATI + Cirrus Logic VGA card at various bus speeds, and Wintune 97 showed no speed improvements, at higher bus speeds. Also, the ATI could not tolerate the bus speed set to maximum, which is 100/4 = 25 MHz.
Re: Complete newbie advice on ISA video cards required please
Posted on 2011-01-23, 09:09
I've just done another test. I removed the VESA cable, and connected the VGA video cable to the ATI card. I booted up the 386 PC, and saw a blank screen. I waited for a couple of minutes, then pressed my monitor button, to switch back to the 386 PC. I then saw the desktop OK. This is useful to know. …
Re: Complete newbie advice on ISA video cards required please
Posted on 2011-01-22, 23:27
I tried the ATI + a VGA card with, and without the VESA cable. If I remove the VESA cable, then plug a VGA video cable in to the ATI, I get a blank screen when I power on the 386 mobo. However, what might be happening is that Windows 95 is booting up, but I can't see it. If I boot up the 386 with a …
Re: Complete newbie advice on ISA video cards required please
Posted on 2011-01-22, 19:46
Correction. I'm sorry, but in my message above, I said that the bus speed was set to /6, which is 100/6=16.3. This is not true. Instead, it was set to 7.2 MHz. There are a couple of jumpers to set the bus speed, and I hadn't reset all of them. After I saw my mistake, I set to bus speed to /6, but …
Re: Complete newbie advice on ISA video cards required please
Posted on 2011-01-22, 18:47
Here is the Display Adapters section. I simply updated the Diamond Speedstar device driver, and told Windows 95 to use the 8514 driver instead. And that worked! http://lh6.ggpht.com/_Dop-eDMechk/TTskvw3DSPI/AAAAAAAAAxA/T6gK7FeuS3c/s800/ati_work.jpg Also, I am able to use 1024x768 resolution at the …
Re: Complete newbie advice on ISA video cards required please
Posted on 2011-01-22, 18:25
Excellent! Thanks very much for your suggestion, elianda. I have got it working. I will spend some time messing about with WinTune 97, and report back with some comments...
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