feipoa wrote:Killed the cache 'eh? Did you try the 'bad' cache in another board? Perhaps you inserted a module backwards during your panic? I've done that before, but I've adopted a habit then when working on boards, I leave my finger on the power button. If I don't hear a beep or see something on the screen within about 3 seconds, I shut it off without thinking twice.
The other thought about the cache is that I remember reading on some boards that they require cache that runs at 5 V, but is 3.3 V for I/O. I assume that 486 cache runs at 5 V and is 5 V I/O. Could the cache you are using be 5 V power and 3.3 V I/O?
I never took the cache chips or tag off since I bought the board sometime in mid 90s at a computer market so I definitely didn't break them by installing wrong
the only thing I can think of is this line from my original post
The new rtc did get warm/hot when trying to boot with no post, not sure if this is good at all, also got no post with rtc removed.
so something was shorted don't know how it would affect the cache which is on the other end of the board but yeah my only clue.
the cache I took off is from another lonestar 3v/5v 486 board 15ns as well so very good fit.
I have been running a few time demos quake, doom and some benchmarks so far so good so in that sense so so lucky only damaged cache in the process not some serious part like the chipset for example
On another note good discussion on the copper cable, I am also going to order some, the smaller the better, thanks guys
ps I also developed this habit, since im using a atx->at converter that is wired to autoboot on power my hand never leaves the power cable at the power point, as soon as something feels wrong I pull the plug
