What is a good site for tech questions?

[Rick_EE]

Anyone know a good site for tech questions?

In case anyone has any thoughts, I'll post my problem here.
Hp Vectra PII400
Win 2k
3 DIMM slots. I have 3 256M modules, the manual says it should be ok. When I add the third- 512 to 768, CPU usage rises to almost 100%. Explorer and taskmgr.exe seem to be the big users. I remove the DIMM and it returns to normal.

[Mark Lamutt]

Is the 3rd DIMM the same brand and speed as the other 2? With HP's I've seen them very picky about having exactly the same memory in all slots.

[Scott Greczkowski]

I bet the speed or the Parity is diffrent this is why you are having the problem.

[Rick_EE]

I bought three identical DIMMs and swapped out the old stuff.

[Mark Lamutt]

One more question, Rick. Are you sure that the m/b in the vectra can take 768 MB RAM? We use HP's here at work exclusively (ugh!) and in my experience some of the older vectras can't take more than 512MB.

[Rick_EE]

The book says yes. The powerup memory test and windows both report 768.