Q6600 PC2-8500C5 1066Mhz

Help I am now at a 1:1 ratio. Just to fill you in on my current settings, they are.


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)
Extended CPUID 6.F
Core Stepping G0
Technology 65 nm
Core Speed 3302.9 MHz
Multiplier x FSB 9.0 x 367.0 MHz
Rated Bus speed 1468.0 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 1.275 V


Northbridge Intel P35/G33/G31 rev. A2
Southbridge Intel 82801IB (ICH9) rev. 02
Graphic Interface PCI-Express
PCI-E Link Width x16
PCI-E Max Link Width x16
Memory Type DDR2
Memory Size 8192 MBytes
Channels Dual, (Symmetric)
Memory Frequency 367.0 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) 48
Command Rate (CR) 2T
MCHBAR I/O Base address 0x0FED14000
MCHBAR I/O Size 4096

I realize this is probably way more information then you need but what I am mainly looking at now is the Memory Frequency at 367.0 MHz. I realize its double data rate so the speed is actually at 734.0 MHz. Now the CPU is very fast like you said it's 3.30 GHz. I ran memtest 86, the ram had no errors.

I try running Prime95 but it stops and it can not complete. I am sure this means that I have an unstable system? :heink: I might be doing something wrong, if i am please let me know.

Last questions

Overclocking is great but why does your ram have to be so slow? I actual have DDR2 Corsair Dominator PC2-8500C5 1066 MHz.

Is there a way I can overclock my CPU and still get the same speed of 1066 MHz on my ram. Again Thank you from your time and effort in helping me, really thank you
2 answers Last reply
More about q6600 8500c5 1066mhz
  1. You forgot to cover the heat aspect. Have you checked your temps?
  2. First thing, are you still running at stock voltage? If so, you can increase the core voltage safely to 1.45 volts as long as the temps stay below 70 C.

    Set your RAM voltage to factory recommended levels, probably around 2.1 volts or so.

    Just overclocking RAM, especially on a Core2 system, gets you little more than an increase in instability.

    Overclocking RAM:

    When you are running Prime95, what fails? If small fft's is failing , look at CPU settings. If large fft's or blend is failing look at memory settings.
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