[Forum] Articia: Still DMA-problems? | ANN.lu |
Posted on 20-May-2003 11:16 GMT by Senex | 122 comments View flat View list |
From a news-item at VGR.com it appears that the current Articia-northbridges might still have DMA-related problems:
"Mr. S.W. who sends over screen shots of newer AmigaOne 800mhz G4 hardware, has sent over 2 screen shots of the new A1 with G4 running 'amigaone xe/g4 7451 800mhz, excalibur radeon 9000 pro 64mb ddr ram, valueram kvr133x72rc3/256 kingston'. He wants to know '.. if other aone users have that problem as well..', 'it never outputs the same checksum with dma enabled when testing an iso file which is larger than the swap space used'
You can see the Radeon 9000 Pro screen shots here: DMA On & DMA Off."
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Articia: Still DMA-problems? : Comment 50 of 122 | ANN.lu |
Posted by Mayonaise on 20-May-2003 20:12 GMT | In reply to Comment 42 (Frodon): "Or if the AmigaOne indeed use a recent version, then why is there still the bug if it's this VIA bug?"
Bugs exist in alot of the VIA chipsets including the latest ones :(, VIA will only admit theres a problem when heavy duty evidence is presented to them as happened with the 686B(VIA are meant to have released a datasheet detailing the problem and how to solve it in firmware, but I've yet to find it). Bugs aren't the only thing wrong with VIA; The 686B and a few others(at least) have really serious performance issues also i.e. burst access in VIA chipsets is done in sections rather then in one long burst as chipsets from SiS , ALi and intel do.
The positives of VIA chipsets seem to be that they're cheap and offer heavy integration... |
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