OC on Q6600 with 1066 memory

darkpollo

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Hi, this is my first OC, so maybe i am asking simple questions.

I have OC my EP45-UD3L motherboard with Q6600 to 3Ghz very easily.
(333x9)
Memory: F2-8500CL5-2GBPK G Skill 2x2Gb

But, because i change the FSB, and the memmory multi is 2.00B, the memory is now running at 1:1, so at 333mhz.

Because the memory is 1066Mhz i would like to increase it to 533Mhz but i am not sure if it is good to raise that multi and because of that change the 1:1 FSB:RAM.

Is that important?
What do you reccomend to do?

Thank you very much

This is the CPUZ report:
Processor 1 ID = 0
Number of cores 4 (max 4)
Number of threads 4 (max 4)
Name Intel Core 2 Quad Q6600
Codename Kentsfield
Specification Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
Package (platform ID) Socket 775 LGA (0x4)
CPUID 6.F.B
Extended CPUID 6.F
Core Stepping G0
Technology 65 nm
Core Speed 2997.0 MHz
Multiplier x FSB 9.0 x 333.0 MHz
Rated Bus speed 1332.0 MHz
Stock frequency 2400 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, EM64T, VT-x
L1 Data cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 2 x 4096 KBytes, 16-way set associative, 64-byte line size
FID/VID Control yes
FID range 6.0x - 9.0x
Max VID 1.313 V

Memory Type DDR2
Memory Size 4096 MBytes
Channels Dual, (Symmetric)
Memory Frequency 333.0 MHz (1:1)
CAS# latency (CL) 5.0
RAS# to CAS# delay (tRCD) 5
RAS# Precharge (tRP) 5
Cycle Time (tRAS) 15
Row Refresh Cycle Time (tRFC) 44
Command Rate (CR) 2T

JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 4.0-4-4-10-16 @ 266 MHz
JEDEC #2 5.0-5-5-15-24 @ 400 MHz
EPP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
EPP profile #1 (full) 5.0-5-5-15-48-2T @ 533 MHz (2.100 Volts)

 

darkpollo

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Forgot to say that i am trying to go to 3.6Mhz, FSB 400x9.

Is it good to leave the memory on 400mhz or is better to raise it to 533 (changing the multiplier) ?

Thanks
 
keep the memory running at 400 mhz but if you insist on running it higher as I do with an extremely similar system lower the multiplyer and up your bus speed always staying with the 2B divider.

right now my q6600 is at 3.8ghz 475fsb x 8 which has my ram running at 950mhz

I have seen no real advantage to this honestly 9x400 will only have the ram running at 800 mhz but that is fine. Changing the ram ratio and upping the speed to 1066mhz while using a 400fsb will not increase performance.

Keep the ram 1:1 for best results
 

^wow, 3.8ghz, what cooler are you using? air or water?
 

darkpollo

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Understood.
Thanks

Now my problem is other, after testing fine in 3.0 y move into 3.6 to give a try and that was impossible to run.
It just reboot just after loading memory, sometimes the memory did´nt show up on the loading screen, and reboot again...

So i open the bios setting again and come back to 3.0. After that, it was impossible again to start, the system just keep rebooting before loading the harddrives.

After several changes on the voltages, memory config, etc i give up.
Load the optimized settings and now i am again on 2.4.
:fou:
I really don´t understand anything.

I was thinking that using this config could not be difficult as i have the same Motheboard and the same CPU.
I tried with several vCore around 1.425, 1.45, 1.475 but nothing make the system to start (this on the 3.6 trial).

What can be the problem?

I will try again tomorrow night.

Thanks

 

darkpollo

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I would do what you suggest with the jumpers.
I just upgrade the Bios today and maybe somthing is going wrong with that and the OC thing. :)

If i have any new problems i will make a new post as the memory question has been answered perfectly. :)

Thanks