been reading over these forums for a couple weeks now pulling together pieces on how to oc my system. Current system specs from CPU-Z are:
Name Intel Core 2 Quad
Specification Intel(R) Core(TM)2 Quad CPU Q8400 @ 2.66GHz
Package (platform ID) Socket 775 LGA (0x4)
Extended CPUID 6.17
Core Stepping R0
Technology 45 nm
Core Speed 2666.7 MHz
Multiplier x FSB 8.0 x 333.3 MHz
Rated Bus speed 1333.4 MHz
Stock frequency 2666 MHz
Northbridge Intel P45/P43 rev. A3
Southbridge Intel 82801JR (ICH10R) rev. 00
Graphic Interface PCI-Express
PCI-E Link Width x16
PCI-E Max Link Width x16
Memory Type DDR3
Memory Size 4096 MBytes
Channels Dual, (Symmetric)
Memory Frequency 666.7 MHz (1:2)
CAS# latency (CL) 9.0
RAS# to CAS# delay (tRCD) 9
RAS# Precharge (tRP) 9
Cycle Time (tRAS) 24
Row Refresh Cycle Time (tRFC) 74
Command Rate (CR) 2T
MCHBAR I/O Base address 0x0FED14000
MCHBAR I/O Size 4096
I have tried to increase the bus speed from 333.3 to 375 to get 3.0 ghz but i get a post error. Can anyone help? I tried messing with some one the voltages but that didnt fix anything. Im a bit lost here.
thanks for the reply. I have read your post and had a couple questions. did you change the timing of your memory at all? So you increased your FSB to 375? The people on your thread seem to think you have DDR2 800 which is incorrect. According to the sticky, with DDR3 you divide by 4, so 1333/4=333.3. I'm a newb at this so any help would be appreciated.
I have an intel DP45SG motherboard. I am not sure how to change my memory ratio. Yes, I increased the Vcore, but i am having trouble getting it to boot. At 375, I cant even POST, but at like 350, it will POST but sit there and not load the OS. I have tried to read up about this a little more but find it very confusing
hey so i have aprob similar. cept i gave up using the 8 x muliplier
because for some reason my memory ratio was always 3:5 on 8 x multiplier no matter waht mem setting i tried 200, 333, 400 etc i couldnt get the mem ratio to 1:1
so for me 8x 350 was about all i can do with a 3:5 ratio and ram is at 1066 well in my ram specs.
i tried upping the vcore and still couldnt get past 3.3 to post..
so then i tried lowering the multiplier to 7x 498 which gives me 3487 mhz
with a fsb of 1983 my mobo max is 2000 fsb...
and this settting has allowed me to run stable at 3.4 ghz