czietz wrote:New beta version 0.2.0 of YAART. Most notable new feature: A (semi-)hidden manual address entry (expert) mode in YAARTTT.TOS that allows you to test memory that is not registered with GEMDOS, e.g. on an add-on video card. See the included documentation for more info.
czietz wrote:New version 0.2.1 of YAART and YAARTTT RAM testers. You can now pause it after an error message (to better that message) by pressing and holding the SHIFT key.
alienkidmj12 wrote:would be even nicer if i ran in a nice menu'd gem app
czietz wrote:As you have already pointed out, it's always the same bit that is affected, more specifically the most significant bit, i.e. data bit 15 (D15).
The ST (usually) has an individual RAM chip for each bit of data, so the one for D15 would be my first suspect. In the schematic you posted this is U45. Note, however, that there were many revisions of the ST mainboard, so maybe this chip has another number on your board. The next suspects indeed would be the latches U22 and U26, as they are also needed for D15.
Users browsing this forum: No registered users and 6 guests