should i prime using the small FFTs or in-place large FFTs?

Small FFTs.

Well, I played games with 3.01Ghz for 2-3 hours and I didn't find any problems using Auto except the FSB plus my motherboard natively supports 1333mhz bus.

This post has been edited by TristanX: Jun 23 2008, 07:54 PM

Kmarc, saw your signature using gigabyte ds3 mobo, wonder did you put a fan at the NB heatsink, i put 2 small fan on the heatsink n was wondering my cpu temp so high , might be the course of the NB fan. Any ideal.

This post has been edited by Dickong: Jun 24 2008, 06:33 AM

mind telling me the actual difference between the two options?

btw, last night i bumped up my bios vcore to 1.375v and primed with large FFTs

9x333. primed over 8 hours and no errors, then stop d.
8x375. primed for 3 hours and no errors then i stop it coz need to come to work this morning.

core temp shows 68C 68C 65C 65C

maybe tonight run again with the 8x375 @1.375v setting using the small FFTs this time.
if can run more than 5 hours, i think should be fine already right?

maybe can try 8x400 next haha. dont know can push that much on the fsb or not

If I'm not wrong, Small FFTs is CPU only, others will test RAM and etc.

Yeah, small FFT's will test very little RAM and mainly stress the CPU, very good for ensuring CPU & Mobo stability at a particular OC without really testing alot of RAM. Large FFT's will stress lotsa RAM and also the CPU and Mobo. So for lazy ppl like me, I just straight run a large FFT stress test...lol..

---

Added on June 24, 2008, 3:58 pmDarkangel...the FSB speeds that your OC will be stable at depends largely on your mobo....what mobo are you using?

This post has been edited by BurgerRI: Jun 24 2008, 03:58 PM

Yup, I have one fan blowing downwards towards the NB.....

Errrr..... what CPU HSF are you using? Fans blowing on the NB shouldn't affect the CPU temperature ma.... unless your fans are blowing against the CPU fan....

This post has been edited by kmarc: Jun 24 2008, 05:16 PM

My nb fan i took it out from my cm blue ice, its quiet strong thats why i am worry it my blow air toward the cpu, anyway i still believe my mobo sensor is having problem becos i have tested many ways of cooling my cpu but then still not much improvement, presently cpu voltage at 1.325 @3.2g n quad prime highest is 67c n lowest at 60c. But strangely 2 core will show about 8-10c different than the other 2 core. Example core 1n 2 show 67c 3n4 58n59c respectively.

What's the advantage of running at 8x400Mhz instead of 9x356Mhz to achieve 3.2GHz clock speed?

I am using P5E.

If i'm not mistaken, higher fsb will be better coz the data rate going to your cpu will be higher. as an analogy, i think it's like a road at the gate of the cpu and the higher the fsb, the more lanes of road u will have into your cpu. that's what i think la... not sure accurate or not haha.

---

Added on June 25, 2008, 10:21 ami tested priming using small FFTs 8x375 @1.375v.
primed for over 6 hours and no errors.

is it safe to say that i can run at this speed at the 1.375v level stable?

This post has been edited by dARKaNGEl: Jun 25 2008, 10:21 AM

Sometimes, an improperly seated HSF can cause a wide variation in temperature between the cores. However, some variation is normal. For example, my quad is currently folding at 60'c, 52'c, 54'c and 57'c......

Why not blow air away from the CPU?

Higher FSB will allow your CPU to communicate faster with the northbridge and also other components in your rig e.g. rams.... In overclocking, it is usually preferable to choose a higher FSB (hence a lower multiplier).... however, in the end, it would also depend on your rams, where ideally, you want your FSB to run 1:1 with your rams.....

One question, currently I have DDR2-800. If I set the FSB of 333mhz, it is better to have DDR2-667 instead of 800?

DDR2 800 is better. Assumption is made that the ram timing and clock speed for both is same.

-pWs-

Here is my q6600 O/C to 3.7Ghz prime95>7hrs stable, quad damn hot over 1.5v i think need at least bump 1.6v to get 3.8-3.9Ghz

This post has been edited by yonglee2k: Jun 26 2008, 09:21 AM


Attached thumbnail(s)

this also u complain hot d?
my Q6600 G0 at 3GHz (375x8) @1.375v and my coretemp showing 68C already... i'm using Hyper212.

ur ram can go around 46xMHz. is that ddr 800 or 1066?

what's your q6600 vid?you should use x9 multi for higher clock

This post has been edited by dixon102: Jun 27 2008, 03:58 PM

I think this is normal for 1.6v for 3.8-3.9Ghz if you want more than 4 hours of orthos stable.

I noticed there are >3000rpm case fans. Maybe that helped a lot on cooling because the airflow is probably a lot faster and possibly an air conditioner.


Try adding more intake and exhaust fans.

This post has been edited by TristanX: Jul 1 2008, 12:40 PM

just sharing...

my Q6600 running at 1.42 Vcore, 400X9 = 3.6G
Temp idle = 43C, Load Max = 60C

heatsink fan: Xigmatek Scorpion
Therml past (very important!!!!!! MX2 or Tuniq)

i used to use capalang thermal past.. temp was 65 at 1.37 at 3.2G.. but now can go somemore... woohoooo

credit goes to cstkl1.. he thought me how to OC my processor with the Biostar I45..

This post has been edited by jeromeccm: Jul 1 2008, 02:54 PM

jeromeccm.......very nice max load temps....are you able to go any higher with the Biostar I45?