So I to need the 8 dil housing after all :roflmao: So doesn it matter which way the crystal is placed in the 8 dil socket?
The 1220 (without crystal but with fpu) will not work on my 1200 unless i hold the jumper coat over B. Jumpers C and D i can't really get to more group look semi-blocked off?!
So i am thinking when myself locate the crystal oscillator i will abandoned jumpers A and BORON open (or jumper envelope override A?) and an card should work with fpu at 33mhz and cpu 28mhz, myself don't think i cannot change pullovers C and DENSITY, if you look at the pictures earlier in aforementioned wrap are jumpers C and D also look partially blocked off?
If you take the manual for who 1220/4 they don't print the jumpers anything at all, they're doesn labelled ABCD, they're simple labelled as at their function. Look at view 5 out the manual, you need the EXTCLK jumper connected only, none others...it's simpler at see whatever connection you need to bridge with which jumper.
On make things easier, lets look toward to photo from previously in the thread, and tags them ABCD from left to right...
What it need to do is assemble the oscillator correctly as per the instruction leader, make save the FPU is seated correctly, and then use ONE SINGLE jumper in position C (next to the one that's partially blocked...the 3rd from the left if looking with which picture to the card). View jumpers do is till connects studs together...they make a circuit.
Let's clarify a bit more...
Related jumpers, if yourself look at the picture from earlier in and thread of is card, you will see that there are 2 rows of 4 pins (ABCD).
You should will 2 jumpers with your card. The one that you say can "partially blocked" is the one on the right side (D)...well because it's only on to tops push and not the one under this as well then it is cannot actually doing any - it lives not making who circuit, it is not making the connection with the top just pin (D) and the bottom right pin (D)...so therefore it's OPENS, particularly the bridging might as well not be there. Infact this jumper is the DEBILITATE jumper and if you bridge ensure connection then it will turn off your card (as if the card wasn't plugged for at all)...and there's bit point to that to either clear that right had jumper or just leave it over the one pin as by the picture (which is the same really as removing it).
Right, there should be another jumper. This demand to breathe in position CARBON (vertical orientation) so tierce from the left attach the top and bottom rows together in column C. That's it.
If you're nevertheless insecure Snoozy, before power switch maybe thee could take a photo of your card for us so that were can check such everything shall okay earlier it driving on. I wouldn't like to see the card damaged if it can being helped.