I have HP Compaq 6910p laptop. It was working great until 2 days ago. When I turned it on it was too slow.
I benchmarked it with AIDA64 and the memory latency was too high around 1500 ns. Checked the RAM with Memory86+ and all the tests were passed. Tried to change the modules from one slot to another but nothing changed. Reinstalled the same version of BIOS (F1.90 the latest) and the result was the same.
If you believe Memory86+ RAM test you do not have a RAM problem.
Do you have a previous AIDA64 memory latency test to compare the current results with?
When running the AIDA64 what speed was the CPU running at?