Trying to overclock but computer keeps freezing

khare

khare

khare

Associate
Joined
26 Aug 2010
Posts
186
Location
South UK
As title. I keep trying to overclock by fine tuning CPU voltage and FSB, but whenever I clock, after some usage the computer will freeze (even though the numbers on my sidebar CPU meter will still be moving). I'm pretty convinced this is RAM related.

CPU-Z shows a FSB : DRAM ratio of 3:10, is that what's causing it to freeze? It freezes even if I use the default 7% overclock option rather than manually.

DRAM Frequency currently running at 669.7 MHz, this is all with the standard numbers.

AMD Athlon II X4 635
ASUS M4N68T mobo
4GB RAM 1333MHz

Khare
 
It just froze again, even though it's running standard setup...


Do you think it could be faulty RAM or a faulty graphics card?
 
PSU is EZcool Tornado 700W. The system is completely brand new NO LINKING TO COMPETITORS. Not overheating as temperatures are about 35C at idle and 63C at full load. System temp shows 26C. CPU is running 1.365 volts which is the standard amount.
 
GPU temperature is 36C at idle. I can't remember what it was at full load but it was reasonably low as well.

Card is XFX ATI Radeon HD 5770 1gb.
 
Use memtest and prime95 to put load on it. When running prime95 on small FFT's it's fine and doesn't freeze, but when I run Blend test, it usually does freeze. Memtest found no problems, although I didn't run it for very long (about half an hour).

I've now lowered the FSB : DRAM ratio to 1:2 and upped the FSB to 215 keeping the voltage the same. Seems fine but I haven't ran any tests yet or any gaming.

DRAM Frequency is 430MHz at the moment, I don't really understand RAM so I don't know what it should be (dinopc said it was 1333MHz).

NB frequency is 2152MHZ, again I don't know what northbridge is or what it should be running at, but I read that cooling it helps although I'm not sure where on my motherboard NB is (there is one ASUS branded heatsink in what I think is the southbridge), it's just underneath the graphics card so I can't put a small fan on it or a bigger HS.
 
Something else I just noticed.

The HT Link is sitting at 1076MHz, and on other screenshots of CPU-Z of the same processor running standard values it's showing 2000MHz.
 
Ok I'm on the laptop now, so I'm in desktop bios and Under memory timming and voltage I have memory clock mode [manual], memclock value [400MHz], DRAM timing mode [auto] and memory over voltage[auto]. Can't see any multiplier. Under CPU ration and voltage I have processor frequency multiplier which is set at 14.5, cpu/nb frequency [auto], HT over voltage[auto], cpu over voltage[auto], VDDNB over voltage [auto], loadline calibration[auto]....Not sure where the ram multiplier is...
 
got it in my hand now but doesn't show much info to be honest. Says all the options taht each thing gives me, but that shows up in the side of the bios anyway.
 
lowered memclock value to 400....You saying it should be 533 for it to be correct ratio??
I'm worried about NB frequency, should I lower CPU:NB frequency to x9?
 
I'm slowly understanding now haha. It's just a big game of mathematics that's what!

Ok,, so my question now is about NB frequency and about HT link speed. HT is 1000, there is no option on setting it, how do people change it to 2000 which is what it should be so I read...And NB frequency, what is something reasonable?
 
:) Thanks Wayne. Right now I'm running 220 FSB with 1098 HT Link and 2195mhz NB, I'll keep playing with FSB for a while and lower the CPU-NB don to 8x :). I'll report back when I find more stuff. You've been awesome :D
 
It's not wanting to go past 220 FSB, anything over that and it won't let me boot up, it just says overclocking failed.

I upped the voltage to 1.4 but underneath the overclocking failed notice, it said cpu voltage failed.

What do you think is wrong???
 
You must log in or register to reply here.
Back
Top Bottom