Reply 340 of 371, by mkarcher
gonzo wrote on 2023-02-22, 09:42:mkarcher wrote on 2023-02-21, 21:34:The early revision of the 8881 north bridge doesn't support linear bursts.
Good work, mkarcher.
Would you please tell us, which board-revision of the HOT-433 exactly do you use/mean?
The board the current experiments are performed on is a HOT-433 rev.1. The important revision is not that of the mainboard PCB, but the revision of the UMC8881 chip. Information wanted for UMC UM8881F sub-revisions discusses the two revisions that are commonly available: "rev. 01" and "rev. 04" according to the PCI device identification registers. You can also determine the chip revision by looking at the chip: If the first letter after the four-digit date code is "B", you have a "rev. 01" chip, and if that letter is "E", you have a "rev. 04" chip. Only the rev. 04 ("E") chip supports linear bursts.