[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."
|
|
List of all comments to this article |
Articia: Still DMA-problems? : Comment 100 of 122 | ANN.lu |
Posted by Kjetil on 22-May-2003 12:15 GMT | In reply to Comment 98 (Remco komduur): // The point is that this CRC-check nicely hides the possible bugs.
It can only indicate a problem it’s no shore thing.
// So it should be avoided when performing bus integrity testing.
No it should not be avoided, but the CRC problems must be avoided on the devices or hardware you do not like to test or else you may be testing some thing else, if you are testing the PCI bus and the chips controlling it, make shore you have a fail free PCI card on the PCI bus, whit no problems and make shore, what ever it is connected to is has a safe transfer (so you don’t end up testing the transfer mechanism), if it is a bandwidth problem. An 400Mbs firmware or 40MB/s SCSI is the best type of devices to check this type of problems on, 2en best if 1000 Mbs Ethernet devices. (10/100Mbs may be to slow for the test), a fast PCI gfx card should revile the problem as well by crashes and black screens pixels appearing and disappearing on the screen. |
|
List of all comments to this article (continued) |
|
- User Menu
-
- About ANN archives
- The ANN archives is powered by #AmigaZeux. It was updated daily (news last: 22-Oct-2004; comments last: 18-May-2005).
ANN.lu was created, previously owned and maintained by Christian Kemp, www.ckemp.com.
- Contribute
- Not possible at this time!
- Search ANN archives
- Advanced search
- Hosting
- ANN.lu was hosted by Dreamhost. Sign up through this link, mention "ckemp" as referrer and he will get a 10% commission on any account you purchase.
Please show your appreciation for any past, present and future work on ANN.lu by making a contribution via PayPal.
|