Re: My vote for best DOS video card
Posted on 2014-10-10, 10:36
This graph doesn't have me convinced that "WD90C31 owns ET4000AX". I wish there was an S3 801/805 and an ATi VGA Wonder Plus in there too.
Re: need help getting scsi CD drive running in a 286
Posted on 2014-10-10, 10:04
It's possible that your 286 motherboard or chipset just can't do busmastering properly. The 154x cards all do bus mastering, and it cant' be disabled. Maybe the 1522 would be more suitable. I use an AHA-1542C in my original AT 5170 and did not have problems like yours (unless I installed upgrade …
Re: My vote for best DOS video card
Posted on 2014-10-10, 09:55
Another Vogons myth busted. NOT a VOGONS myth. It predates VOGONs by a decade (or more). Check the newsgroups. I find this discovery rather interesting, because of all the cards I played with in my VLB system the ET4000W32P always felt like the fastest one to me. I own a CL GD5429 as well, and I do …
Re: My vote for best DOS video card
Posted on 2014-10-10, 07:51
Very interesting. I wonder if memory interleaving is only available to the Windows accellerated drivers. I've never tested any 2MB cards at 1MB because either my card always came with 2MB or I had the extra chips on hand and upgraded immediately. I think you will be very disapointed with the 2MB …
Re: My vote for best DOS video card
Posted on 2014-10-09, 08:47
I don't think using a 486DLC-40 to test VLB cards is a good idea. From my experience with these hybrid boards the VLB implementations are severely flawed. I happened to have the Mach64VRAM in both ISA and VLB form. On the DLC the VLB card was barely faster than the ISA. But on a true 486 the VLB …
Re: Biostar MB-8433UUD-A
Posted on 2014-10-08, 10:16
What is the model of your desoldering tool?
Re: Upgraded cache but...
Posted on 2014-10-08, 01:23
It's strange that 256kb isn't stable with 2-1-1-1. Bank interleaving is supposed to allow for tighter timings. I have a board based on the OPTi 495SX which is a bug fixed version of your chipset, and I have not noticed any problems running 2-1-1-1 with 256kb cache.
Re: Another 486 build.... with EISA!
Posted on 2014-10-07, 07:57
As far as I can tell, all AMI "model F" KBCs and onwards will do the mouse support. I haven't tried earlier ones, but in theory anything from 1987 onward (when the PS/2 came out) should have it.
Re: Another 486 build.... with EISA!
Posted on 2014-10-07, 01:40
I swapped out the KBC on the SuperEISA to get one that I knew for sure had mouse support. The old one worked fine. As it turned out, the old one had mouse support too. Infact, just about all of them do unless you're using something really ancient. The KBC on my Tyan was defective just like yours. I …
Re: Another 486 build.... with EISA!
Posted on 2014-10-06, 06:42
I got writeback L2 working on this board. Last time I tested I used a 64kx4 instead of 64kx1 dirty bit. I found a proper 64kx1 on a different board and tested it out. The scores were basically identical, except for main DRAM which was 5MB/sec faster using write through mode. (using speedsys) I think …
Re: Another 486 build.... with EISA!
Posted on 2014-10-06, 01:50
It's certainly not made to the same level of quality as the Super EISA. On the Super EISA they took fewer cost saving measures and socketted just about everything save the 245s. https://lh3.googleusercontent.com/-ysLARcAenmw/VDIKc92xgfI/AAAAAAAAEz4/a61VIhtt02I/s800/DSC09719.JPG https://lh3. …
Re: Another 486 build.... with EISA!
Posted on 2014-10-05, 12:58
512k and 1024k cache settings solved. The TH99 settings are infact correct. The problem lies in the sockets. This board is designed to take both the 300mil and 400mil variants of SRAMs. Unfortunately, 2 pins on the 300mil sockets are not hooked up!!! I guess because at the time only 400mil 128kx8 …
Re: What retro activity did you get up to today?
Posted on 2014-10-05, 12:33
I'm attempting to revive my dead MCCI SuperEISA motherboard. I was able to get it to post and even boot to C:, but it's very slow. It takes 3 minutes to reach C:. I think I have isolated the problem to the 8253 system timer. I suspect I make have a bad 14.31818MHz crystal. I have ordered …
Re: Biostar MB-8433UUD-A
Posted on 2014-10-05, 12:22
Usually what I do to remove ICs is to just clip them off with some very fine wire clippers...then you can desolder the stubs one at a time (try to leave enough to pull on with tweezers). If the amount of solder is not enough, just add more. It's even possible to put in a new socket without using a …
Re: What retro computing gadget that doesn't exist would you like to have?
Posted on 2014-10-02, 02:05
Yeah, I read your machine description. Is this thing 3/4 length, though, or full length? Even if it fits my length requirements, it probably is impossible to find. You are correct, mine is longer than 3/4 length. However, there is a similar product made by Acculogic called "RAMPAT! PLUS" that is …
Re: What retro computing gadget that doesn't exist would you like to have?
Posted on 2014-09-30, 00:35
I guess what I would really like to see would be a 1/2 or 3/4 length RAM card that you could popuplate with standard 30 pin simms and put 8 or 16mb into a system, although accessing that much RAM with an 8 bit data bus paired with a 16 bit cpu would probably be slow as heck. No really, this already …
Re: What retro computing gadget that doesn't exist would you like to have?
Posted on 2014-09-29, 05:38
What retro computing gadget/board that doesn't currently exist would you like to have, if you could have any sort of gadget built? My vote would be for a combo RAM/EMS board or maybe vga/sound combo card that would be 8/16 bit switchable. Switchable 8/16 EMS RAM boards exist. There is an ET4000AX/ …
Re: My vote for best DOS video card
Posted on 2014-09-29, 01:18
ARK1000 and ARK2000 should use identical 2D cores. Performance and compatibility of both should be identical.
Re: Acer Aspire One 722 - Random HDD Spin Downs
Posted on 2014-09-23, 10:58
Do you ever have a problem with the mouse driver crashing and losing the ability to perform advanced mouse functions? I have this happen on two totally different acer 11" laptops. One is Elan and the other Synaptics. Maybe it's a windows 7 problem? I find it especially annoying as I use the mouse …
Re: What is the latest graphics card to work with a POD83?
Posted on 2014-09-22, 10:51
Anyone tried a Geforce 9400 GT PCI? http://www.ebay.com/itm/Jaton-GeForce-9400-GT-Graphic-Card-1-GB-DDR2-SDRAM-PCI-/161388295892?pt=PCC_Video_TV_Cards&hash=item25937df6d4 1GB VRAM. That would be stupendous if it actually worked (doubtful). I think you'd need XP to install the drivers. The 6200 LE …
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