text: pc tech or expert advice help needed? model is ge pro-htproblem i have aperfectly normal working pc,i wanted to add more memory to it,and stupudily i added sd ram to the ddr ram thatn was already in there.so when starting up the pc,the pc only recognised the sd ram,and not the ddr ram,i took out the sd ram and put the ddr ram back in,did not work,put back the sd ram it works.went on the net to get help,someone gave me these steps.take out sd ram after switching off the pc.switch the pc on,and then back off,then put in the ddr ram,switch back on,does not work,switch off put back sd ram,oh my god now that does not work.so now my pc makes 3 beeps at a time.what can i do to make the pc work again? i have took out the battery,and jumpers some told me to do,but all i am getting is beeps.i have also reset thecmos by touching the 2 metals with a hairpin.is there any order i should be doing this,becasue an it guy told me to take out the sd ram and switch the pc on blank,at least that worked,now nothing works. first off you do not force ram into slots.like it was previously stated. you will not only damage the stick of ram but you can damage the motherboard. try sticking the sdram in the other slot for that memory. see if that works, if not, try the ddr in the other ddr slot. if that still don't work refer to the bios. if you go to the manufacturer of that motherboard they will have a bios update where you can flash the bios but be careful because if you use the wrong update you can damage the motherboard.  i have talked with my brother who has 16 years experience in the field. since i only have 1 ha ha. he asked when you say nothing is working, and beyond the beeps do you get anything on the monitor? such as an option to make changes to the cmos.