High latency issue (help needed)

[Yuri57]

Hi!

 

I have a S1366 system with a W3670 Xeon processor. After some testing, changing BIOS settings and so on my system became slower than expected.

As you can see on the pictures latency for memory is very high, and also for L1, L2. In CPU-Z the single-threaded score is around 100 which is used to be 380!

My score in Cinebench droped by 100 (~10%) appoximatly and AIDA64 score almost by half!

So there is something very wrong with the system and I cannot figure out what...

Tried changing memory timings, NB frequency, voltages and CPU OC settings but nothing seems to matter. Even when I loaded up the system with default BIOS settings I experienced the same issues. Still sometimes (randomly) the system would boot up properly and latencies are as expected. Sometimes it becomes normal if I change the FSB (BLCK) back and forth.... 

My only guess is that the memory controller in the mobo is dieing slowly but if you could suggest any tipps to try turning this system back to normal, I would be very happy.

 

Thanks for any input in advance, cheers:

 

Yuri57

[Yuri57]

Ok, I found a solution for my problem. The memory controller isn't dieing, just showing it's limitations with 6x4GB of memory.

I had to up VTT from 1.30V to 1.35V and downclock NB from 3600 to 3200 and also the CPU from 4200 to 4000 and now it works perfectly fine! :-)