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Strange E6300 overclocking issues

C

chinesepiratefood

2[H]4U
Joined
Oct 8, 2005
Messages
2,629
*before I start I know no amount of overclock is guaranteed, and everyone's mileage varies, and am NOT complaining about what I can overclock to*

Ok, now with that out of the way, onto the problem.

Basically, with stock voltage(cpu, mch, fsb) at 7x444 (3108mhz) my computer is 100% stable - IntelBurnTest, Prime95, etc.

But no matter what I change in my BIOS (any voltage, PCIe clock, memory timings) I cannot get 445mhz to POST if my life depended on it.

I know it isn't my memory which at 445 would be running at 890 because I have had my memory stable @ 1000, and I know temperatures aren't a problem, so is there a chance that my CPU just has a wall 1mhz above what runs flawless?

Or is this more likely to be a motherboard problem?

Full System Setup:
Gigabyte GA-965P-DS3 (rev 1.0) (BIOS version F12)
E6300 (B2 stepping)
4Gb G.Skill DDR2-1000
EVGA GTX 260 FTW
2x250gb HDs
Corsair HX520w PSU

Thanks in advance guys :)

I guess I could have posted this in the overclocking section, but too late now I guess :(
 
Have you tried 446 or anything higher? Some motherboards have "holes" that they will not operate at and 445 may be one of yours.

 
well, not 446 (since I really don't care about 2 mhz) but I have tried like 447, 448, 450, 455, 460, 465, etc.

Plus a bunch in between those.

ONE TIME, and ONE TIME only it booted at 475, do not ask me how the hell that happened. But when I restarted my computer the computer failed to post again.

Feels like a motherboard problem, but no idea.
 
You probably just reached the limit of that motherboard. It could be the motherboard itself, the northbridge or the clock generator. At that high FSB, I'd bet the northbridge is extremely hot and could use some better cooling. Trust me, I know since I have a Gigabyte 965P-DS3 with a Q6600 and previously an E6400@3.4ghz and I also have a Gigabyte P35-DS3R with a Q6600@3.6. The passively cooled northbridges run hot and need extra airflow on them

 
I find Gigabyte boards (I own the DS3) overclock best using Easy Tune. The BIOS often just fails to post- usually during the hard drive detection but once booted Easy Tune allows me to crank up the speed. I really do wish I could just overclock in BIOS and be done with it because I mostly boot Linux. I agree with others regarding the NB temp- I have a 80mm fan blowing directly over mine.
 
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