[sdahlbe]

I'll start off by saying that I am a novice in the world of overclocking, but I have done lots of research before coming here to ask for help. I am trying to achieve 4+ ghz cpu and 2.8ghz+ NB, but am stuck at 3.8ghz cpu and 2.6ghz NB.

My current stable OC is this:


For my current stable settings, vcore is @ 1.345v and CPU-NB @ 1.24v and NB @ 1.1v (stock). My NB multiplier is at 13x giving me 2600mhz. For cooling I am using Hyper 212+ and @ 3.8ghz idle temp is 36.5c and load max is 50c.

Notable ? BIOS settings: C1E disabled, CnQ disabled and smartfan target disabled (these settings off force my CPU fan to run at max), chassis intrusion disabled, spread spectrum disabled, advanced clock calibration disabled.

My memory is recognized @ 1333mhz but is specified for 1600mhz, which I manually set in BIOS to 1:4 ratio. Ive messed around with the timings (as seen in above image) based on what Ive seen on forums for my specific model, and I think maybe my timings and speeds are causing problems when I try to achieve 2800mhz NB?

I have been trying to achieve a stable OC of 4ghz+ but I cant get above 3.8 without crashing under stress tests. I've been using AMD Overdrive stress test, and at 3.9ghz it crashes after 5+ minutes, and at 4ghz it crashes within 10 seconds of testing. Also, I havent been able to get my NB above 2600mhz even with voltage tweaking in increments from 1.25v-1.35v, it crashes within 10 seconds of desktop at 2800mhz, and sometimes even freezes my system and forces me to reset CMOS cause it wont POST.

I've included a lot of information here, let me know if you need more info. I appreciate any help/advice!

 

[yuksel911]

disable spread spectrum!

 

[yuksel911]

After disabling it you can hit 4GHz+ but you must increase your voltage to 1.45v, to reach 4GHz or 4.1GHz (MAX). With this mobo you can hit 4.2GHz/4.3GHz with 1.5v. As you know max safe voltage for AMD is 1.5v (that's for 7/24 usage) and 1.55v for benches. Enjoy.

 

[sdahlbe]

I disabled spread spectrum as suggested, hoping it was the cause to all my problems... but it seems to have made no difference unfortunatly.

Since I disabled it, I upped my cpu multiplier to 19.5x for 3.9ghz, and still I crash during stress test after 3-5 minutes. HOWEVER... I was finally able to pass stress tests by LOWERING my NB multiplier to 12x for 2400mhz and CPU NB v to 1.15v.... This makes no sense to me... I am stable at 3.8ghz cpu and 2600mhz NB but to run stable at 3.9ghz I have to lower my NB to 2400mhz?

 

[yuksel911]

brother i said increase voltage of your cpu... increase it to 1.45v and put 20x multi.. for 4ghz

 

[KyadCK]

yuksel911 is right, I couldn't get my 970BE to 4.0 stable till 1.45v either: http://valid.canardpc.com/show_oc.php?id=2040269

 

[yuksel911]

i'm hitting 3.7 from 2.8 with 1.465v

 

[ikcti]

You need to increase your voltage to at least about 1.425v, 1.345v is just not enough. Also higher NB does not necessarily mean better stability. Your lowering of NB resulting in more stable overclock may be because of an unstable NB.

 

[sdahlbe]

Quote:

brother i said increase voltage of your cpu... increase it to 1.45v and put 20x multi.. for 4ghz

I tried your suggestion after your original post, and it resulted in crashes within the first 10 seconds of stress tests. I even tried tweaking the voltage starting at 1.455v up to 1.5v, and even changing my NB settings from 2600 > 2400 > 2200 >2000 @ 4ghz and still the crash always came immediatly in the stress test. When it crashes, I dont even get a BSOD, just black screen and then POST.

At the moment my best "stable" settings are at 3.9ghz with [email protected] and NB 2.4ghz with [email protected] and RAM at 800/1600 9-9-9-25-40-2T (stock ram settings)

 

[ikcti]

What are your temperatures like?

 

[yuksel911]

wait wait wait WHAT YOU SAID CPU NB 1.15V!? ARE YOU CRAZY?
if you want to reach 4GHz JUST FOLLOW THAT it's 100% !

1.45v / 1.4625v TO THE CPU WITH 20X MULTIPLIER
1.65v TO THE RAM (DONT WORRY THIS VOLTAGES ARE IN SAFE ZONE)
1.3V TO THE CPU/NB (FOR 2.6GHz NB!)
AND YOU ARE DONE...

 

[sdahlbe]

Quote:

What are your temperatures like?

37.5 c idle temp @ 3.9ghz
54c stress test load @ 3.9ghz

when i tried 4ghz i recorded 40c idle temp but it crashed too soon to record load temp
Quote:

wait wait wait WHAT YOU SAID CPU NB 1.15V!? ARE YOU CRAZY?

I said cpuNB @ 1.15v when I am running 2400mhz NB and 3.9ghz cpu, and it is stable at this setting. When I tried your settings of 4ghz I had my NB @ 2600mhz and CPUNB @ 1.3v just like you said above, it doesnt last in a stress test for even 10 seconds.

 

[yuksel911]

do what i said... you can't overclock because of cpu/nb voltage... i said the correct one put them all and start the ENGINE...

 

[sdahlbe]

Quote:

JUST FOLLOW THAT it's 100%

I appreciate your help but your settings do not work with my hardware. I retried my 4ghz test with the exact settings you just posted and still it crashes within 5 seconds of stress test. 41c is the idle temp. My ram volt was at 1.65 as suggested, and cpu-nb was at 1.3v

here is even a cpu-z screenshot of your settings right before i crashed it with the stress test:

 

[kahboom]

your cpu/nb voltage needs to be increased to 1.27v to 1.35v depending on chip, and the nb voltage on the mobo 1.18 to 1.4v depending the nb chip and cpu

1.15v for cpu/nb is way too low very unstable for 4ghz+ with nb raised

MSI mobo's nb chips on the motherboard have a wide range when overclocking, never really the same just all over the board when it comes to voltage but the cpu voltage should be between 1.42-1.48v, cpu/nb voltage is 1.27-1.35v, and nb is 1.18-1.4v but i have seen as high as 1.5v in higher overclocks

also if your having trouble some chips don't like going over a curtain multiplier try increasing bus speed and decreasing voltage keeping nb the same and cpu/nb the same, for example my chip needs 1.48v for 4.1ghz but 1.42v when i increased the bus speed frequincy instead and lower the multiplier, it just varies on the chip

Also your ram timmings for those should be 9-9-9-24 in bios if not set already

 

[sdahlbe]

Quote:

Also your ram timmings for those should be 9-9-9-24 in bios if not set already

currently they are 9-9-9-25-40-2T (stock recommendation for 800/1600) but I have also tried 9-9-9-24-33-2T and 9-9-9-22-31-2T.

For your recommended 9-9-9-24 would that end in -33-2T?

 

[yuksel911]

go with 1.35v to cpu/nb ... and try again ...

try 9-9-9-27-40-2T 1.65v for 1600