Rommudoh<p>I finally <a href="https://social.tchncs.de/tags/fixed" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>fixed</span></a> my <a href="https://social.tchncs.de/tags/Commodore" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Commodore</span></a> <a href="https://social.tchncs.de/tags/VC1541" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>VC1541</span></a> by replacing all the crappy IC sockets!<br>I checked every connection against the <a href="https://social.tchncs.de/tags/schematics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>schematics</span></a> and noticed a few higher resistance values when measuring at the IC pins - still low enough to beep, though.<br>They were very cheap sockets with only one-sided connections, which can result in poor connection.<br>After swapping them (<a href="https://social.tchncs.de/tags/unsoldering" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>unsoldering</span></a> and <a href="https://social.tchncs.de/tags/soldering" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>soldering</span></a> 256 pins), it works like a charm. Very quiet purring since I cleaned the mechanics, too.<br><a href="https://social.tchncs.de/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>retrocomputing</span></a> <a href="https://social.tchncs.de/tags/repair" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>repair</span></a></p>