Recently picked up this fascinating VLB card. Gotta say, it’s pretty darn fast. I haven’t tried out video acceleration, but I’m curious to see how well the Vision868 does.
I have wanted to test an 868 for a while. I suspect that the 868 can be tuned with MCLK a bit. Right now it seems slightly slower than my 60ns-equipped Paradise Bahamas64 VLB, equipped with the S3 864.
Unfortunately, however, my fastest VLB motherboard uses a very weird chipset that MCLK does not like. It’s an APC Predator 747 with the Chips&Tech CS4041—a super fast, super late VLB chipset. And it loves late, advanced, quirky VLB cards that some of my other boards hate for whatever reason. (e.g., My Symphony Haydn board requires me to jumper my Cardex Challenger Tseng ET4000W32P to disable “Delay Command Option,” whatever that means. If I don’t do that, it won’t boot and, if it does, it sure as heck isn’t stable…). The Predator 747 is seemingly very fond of the ARK1000VL, S3 864, and Tseng ET4000W32P, as well as the Trio32. I’d like to really test this card to its fullest on the Predator 747.
Does anyone know any other memory clock adjustment software for DOS?
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Speaking of VLB, I picked up an Avance Logic ALG2228.A board. My apologies for the awful photo; it’s a great board and, truthfully, the thing looks brand new. It’s also very, very, very late date-code wise for a VLB card: Week 13 of 1995—essentially a contemporary of the Vision868 shown above. To anyone curious about this card, I have used it in DOS for a while and have found the following to be true:
- Image quality on my Dell 1908FP LCD is awesome; easily toward the top of my VLB cards. I don’t have a CRT to test with at the moment.
- The 45ns DRAMs are there for a reason; this thing is fast. How fast? A bit faster than a Cirrus GD5426/28, but slower than a Trident 9440-1. It’s probably around an S3 805, which I’ve found to be pretty fast (I have a Diamond Stealth24, with 50ns RAM and it is about 5-7% slower than the Vision864).
- Apparently it’s got some basic Windows acceleration features; I haven’t tried this, but I can imagine it’d be acceptable in 3.1, and okay in 95.
- 1MB of non-upgradeable RAM is the big, limiting factor. The 32-bit memory bus doesn’t really help.
- Compatibility with VESA stuff seems good. The VBE implementation is limited, but it’s there and it works. I can at least say that relative to some of the other cards I have.
- Unlike the ET4000W32P, which hates my Symphony Haydn-based board, this seems totally content there. It’s pretty trouble-free, just like any Cirrus.
Overall verdict? In my opinion, seemingly worth it over a GD5428, and maybe a GD5429. These are sometimes findable for fair prices, but some people seem to want to charge a lot for the Hercules version, which utilizes the same PCB and sometimes possesses a differently-packaged RAMDAC (PLCC vs the DIP setup here). As partial as I am to S3, the build quality of this card is quite good and it’s rated for 50MHz. Only some later 805-Ps seem to be able to do the same and they need at least 70ns RAM; the 864 can barely do 40MHz. The ALG2228.A definitely deserves a look and some love!
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Also, I grabbed this PCChips M810LMR. It was ~$11, and it’s probably not worth that; I do have to say that it’s pretty nice for what it is. It’s slower than my KT7A and AMD760-based GA-7DX, but still not that bad. It came with the original manual, disk, and AMR card.
The SiS730 itself really isn’t too bad. Sure, it’s an integrated chipset with sound, graphics, and the works all stuffed into it, but it’s pretty fast and very stable. Despite the usual shoddy PCChips quality, this board seems fun for testing. It’s perfect with an Athlon 1400 and even runs at 133/133 FSB/RAM, despite the manual seemingly insisting (contrary to SiS’s specifications) that the SiS “Thunderbird” chipset (as they deemed it) can only handle 100/133. Apparently the integrated MIDI isn’t half bad. SoundBlaster compatibility needs work and possibly some aspirin, to say the least…
Also, I probably need to update the bios on this thing as it does not like Athlon XPs very much. A 1700+ Palomino would run at 1100MHz, but not at 1466MHz; apparently it should be able to do the latter, so I’ll try a re-flash and see…
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