I'm been overclocking this Mainboard (GA-P31-S3L) now for about 6 months, and altho I can get it Orthos stable for countless hours,
I'm getting irregular cold boot issues. Meaning the board reverts to stock settings, and I have to go back in and restore my overclock.
I've tried every combination of voltage increase, FSB speed, and always tried to keep a 1:1 setting. Even with Ram set to Auto,
I get this problem. At the moment, I can only seem to hold a 3.2Ghz o/clock (400x8) with Vcore 1.328v in Cpu-Z.
I've added +.1v to PCI-E, +.2v to FSB, and +.2v to MCH.
The ram timings are manually set 5 5 5 18 @ 2.1v, with 1:1, so running at 800Mhz.
Any FSB above 400 tends to bring out the cold boot issue real quick. I believe the Ram is verified to run at 4 4 4 12 @ 400Mhz,
but as soon as I tighten the timings, altho it runs stable, it won't cold boot regularly.
I've researched my motherboard, and am confident the P31 is a reasonably good overclocking board,
and as I'm not overclocking the Ram, I'm curious as to why I have the cold boot issue.
I would be more than happy to get a stable 3.6Ghz o/clock.
If anyone has any ideas on memory timings etc, I'd greatly appreciate it.
Sorry for the long read.
CPU Type DualCore Intel Core 2 Duo E6750
CPU Alias Conroe
CPU Stepping G0
Engineering Sample No
CPUID CPU Name Intel(R) Core(TM)2 Duo CPU E6750 @ 2.66GHz
CPUID Revision 000006FBh
Core Voltage 1.325 V
CPU Clock 3200.0 MHz (original: 2667 MHz, overclock: 20%)
CPU Multiplier 8.0x
CPU FSB 400.0 MHz (original: 333 MHz, overclock: 20%)
Memory Bus 400.0 MHz
DRAM:FSB Ratio 1:1
L1 Code Cache 32 KB per core
L1 Data Cache 32 KB per core
L2 Cache 4 MB (On-Die, ASC, Full-Speed)
Run MemTest86+ and see if your RAM passes it. It should take about 1HR at most. It may be time to upgrade your motherboard to something more willing to overclock. I've read good things about P45, X38, and X48. I wouldn't upgrade to a P35 from a P31.