Re: Problems with Athlon build
Posted on 2011-09-29, 08:12
524288kbytes / 1024kbytes = 512mbytes .... the amount of memory detected is correct.
Re: Hurrah! - Found an AT case!
Posted on 2011-09-29, 07:54
Yep, this one has a display that does 199 as the highest. Cannot figure out how to get it to change when Turbo is disabled though - it always stays the same. The panel ha a 3 pin Turbo switch lead and the board only a 2 pin Turbo switch header so it might not be possible.
Re: ROM BIOS Checksum Error
Posted on 2011-09-28, 15:57
Just now had a single power on where I got something other than the rom checksum error.... saw the VGA BIOS info (copyright cirrus logic 1994 bla bla ... 1024kb) and then it froze. I can write a couple of new eproms no problem (if I can dig out the software for my old willem writer), but as you say; …
Re: Hurrah! - Found an AT case!
Posted on 2011-09-28, 13:30
Got the motherboard spacers today and installed the board, wired up the front panel connectors and fired it up (no IO or sound right now, just a VGA card): http://targetearth.dyndns.org/www/gaming/large/P1020536.JPG http://targetearth.dyndns.org/www/gaming/large/P1020535.JPG However, I've hit a …
ROM BIOS Checksum Error
Posted on 2011-09-28, 13:29
Finally ressurrected my old 286 motherboard and got the case and all other parts together. My first attempt at getting it working seems to have failed. I get this: http://targetearth.dyndns.org/www/gaming/large/P1020537.JPG Now I've tried taken both AMI Bios chips out (it has two; 'odd' and 'even'), …
Re: Help with 386DX-40 & 386 mobo
Posted on 2011-09-28, 07:20
Please note the smilie. My screen is from a real 386DX-40 whereas benches within Dosbox are not very useful for comparison. The FPU is an Intel 387DX. There are some drawbacks I noticed with the config.exe from TFX. It requires a mouse driver and somehow corrupts the A20 gate line on the 386 system …
Re: Help with 386DX-40 & 386 mobo
Posted on 2011-09-27, 22:52
Your Dosbox has some completely unrealistic speed ;-). Hmm... it's a standard 0.74 build from source. Core is set to auto, cycles to around 10000 and it was built with the following parameters: CFLAGS=-mtune=core2 -march=core2 -msse3 -O2 -malign-double -mfpmath=sse -ffast-math -fomit-frame-pointer …
Re: Help with 386DX-40 & 386 mobo
Posted on 2011-09-27, 22:46
Davros wrote: swap file is best turned off ? it was a dos game ? Yes. TFX is a dos game. It reccomended the use of a disk based swap file (which it created) if you didn't have a certain amount of memory. Any more than 8Mb or so and it doesn't appear to need to use it.
Re: Hurrah! - Found an AT case!
Posted on 2011-09-27, 22:00
Nothing so flash and fancy as a 486!... it's the original motherboard from my very first PC - a 16MHz AMD 286. I don't think they make a '80286 Inside' badge 😁
Re: Hurrah! - Found an AT case!
Posted on 2011-09-27, 15:02
Update! The case is finished - all the blanking panels, floppy drive and CF card reader bay have been painted blue to match the case. Some parts (floppy dust cover, eject button, case power button) have been painted black to match the LED insert panel and the CF reader. I don't think it looks too …
Re: Hurrah! - Found an AT case!
Posted on 2011-09-27, 10:51
Just found someone on Ebay with a supply of AT motherboard standoffs (the ones that are used to slot into the motherboard tray). So I should be able to start to get this assembled pretty soon. I'll strip and clean the AT PSU that came with the case first - it's pretty dirty, but cleaning things up …
Re: Help with 386DX-40 & 386 mobo
Posted on 2011-09-27, 08:08
TFX also makes use of a floating point unit in the same way as Falcon - to determine which flight model to use. The setup routine does a floating point test in order to choose the most appropriate mode. Might it be worth using just the TFX setup programme in order to do another set of FPU benchmark …
Re: Hurrah! - Found an AT case!
Posted on 2011-09-24, 09:39
Yep. Needs a little bit more paint on the edges where it hasn't covered quite as well - the power button was taken out because I plan to fit the ATX psu instead - what I'll do there is remove the latch mechanism from inside the AT power switch and turn it into a momentary type needed by ATX. On the …
Hurrah! - Found an AT case!
Posted on 2011-09-23, 13:16
After a long search I finally found someone selling an AT case just over a week ago. Downside was that it looked in fairly crappy condition - the case was yellowed and the inside was filthy. PSU was questionable too. Upside was that it was quite obviously standard AT layout, had front mounted hdd …
Re: what can cause win2k network connections to be dead slow?
Posted on 2011-09-22, 22:04
Ipconfig /all and tracert to your router IP address?
Re: ATX to AT converter cable power buttons & acceptable voltage range?
Posted on 2011-09-21, 19:39
The -5v line is only a problem for a few selected older cards on the isa bus. There's a thread here listing some of the cards that need it here: The Mystery -5V Rail
Re: My First Dualatin
Posted on 2011-09-21, 11:53
I own a Gigabyte GA-7DPXDW-P ( like this one , AMD760MPX based) and wanted also to build a dual Athlon machine (at some point I wanted to build several SMP machines), but I haven't had a clue what I would run on it (and I didn't want another WinXP machine). In the end it will be probably my AGP Pro …
Re: Cant get my motherboard work -> no display..
Posted on 2011-09-13, 20:31
Does the board also have sockets for 41256 dip chips? Usually you have to install one or more of those along with the 44256 modules (at least, you have to, if using dip chips on my 286 motherboard, rather than the simm slots)
Re: 486 restoration project : need some advices and opinions!
Posted on 2011-09-13, 11:52
Gawd, the power draw on those simms must be horrendous!
Re: MT-32 with a SB AWE32 or Built-in SB 16 (Dell Optiplex GXPro)
Posted on 2011-09-11, 20:06
Midiman mm401. Musicquest and the Roland MPU401 cards (mpu-ipc, mpu-at etc..) are about it for DOS.
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