Rig won't overclock

PhilipM · 6 Feb 2007 at 11:31

Hi,

I have a DS4, GeIL 2GB PC6400, e6300 rig. In the bios, I've tried upping the FSB from the standard 266. As soon as I go over around 300, it won't boot and reverts to standard settings. I've tried this at standard DDR2 volts and +0.3v. Same result each time. :confused:

What am I missing? This setup should hit 400 without even breaking a sweat, right?

Thanks,
Philip

melbourne720 · 6 Feb 2007 at 11:41

Do you have your memory on a divider? Have you increased your vcore? How about the FSB voltage? What are your temps?

As I understand it, the DS3/4 run the memory on a divider and so you may be over-overclocking your memory at the same time as your CPU. As a general rule, overclock one thing at a time.

PhilipM · 6 Feb 2007 at 13:56

Temps under load at standard speed is something like 34-40C.

The memory is PC6400, so should take 400 easily. Many are getting 450. Same for the mobo. Hence my confusion!

I haven't touched vcore or fsb voltages. Just the ram voltage.

PhilipM · 7 Feb 2007 at 16:49

bumpage.

Any ideas welcomed!

Van Diemen · 7 Feb 2007 at 17:25

you need to push the Vcore up.

about 1.3v should allow you to post past 300

PhilipM · 8 Feb 2007 at 21:07

It's set to 1.325 (standard) in the bios.

Using CPU-Z, it reports 1.120, but occasionally fluctuates to 1.300.

Using Speedfan 4.21 it reports Vcore1 = 1.14v, Vcore2 = 1.87v (!)
It also reports +12v as 2.62V and -12v as -16.97.

Core temps are 32C idle, 44C 100% load.

Should I be worried? Is there any other software I should be using to look at voltages?

Massive Attack · 8 Feb 2007 at 21:11

have a read through this, helped me get started

http://forums.overclockers.co.uk/showthread.php?t=17636047

Barrington · 8 Feb 2007 at 21:11

Have you turned off Speedstep and all that guff in the bios?

Edit: From above's post - CPU Enhanced Halt (C1E), CPU Thermal Monitor 2(TM2), CPU EIST Function - disable.

PhilipM · 8 Feb 2007 at 21:41

Will check the bios now (reboot required).

I notice that the post says the multiplier should be 2. Aren't these processors quad pumped? Therefore, shouldn't this be 4?

Barrington · 8 Feb 2007 at 21:43

PhilipM said:
Will check the bios now (reboot required).

I notice that the post says the multiplier should be 2. Aren't these processors quad pumped? Therefore, shouldn't this be 4?

Set the System Memory Multiplier to "2x"

Its the memory multiplier, not CPU.