The AMD Phenom II OC'ers Club

[Skywalker12345]

go baack to 32 bit ha

 

[sinar]

Luck of the draw
mine doesnt even do 2800

At that settings with air cinebench and 3d '06 cpu can not run

 

[Velvet Wafer]

At that settings with air cinebench and 3d '06 cpu can not run

if i try to set more than 2800, it simply will crash during the set. ( i use foxconn software,and k10stat)

 

[MilkyWay]

x64 i heard has a 4ghz wall i dunno if its still true but a lot of early phenom II reviews said that

 

[Velvet Wafer]

x64 i heard has a 4ghz wall i dunno if its still true but a lot of early phenom II reviews said that

it is. everyone can try it. i believe, the highest, they got the x86 7ghz 955 in x64,was 4.400mhz
with LN2!!!!!

 

[Wile E]

it is. everyone can try it. i believe, the highest, they got the x86 7ghz 955 in x64,was 4.400mhz
with LN2!!!!!

If it isn't stable in x64, it isn't truly stable. It means your 32bit clocks are technically unstable as well. x64 code just hits the cpu harder.

 

[Judas]

Can I join ? got my Processor just waiting on the Crosshair.. none in stock at the mo

 

[Velvet Wafer]

If it isn't stable in x64, it isn't truly stable. It means your 32bit clocks are technically unstable as well. x64 code just hits the cpu harder.

thats the third time, you say that to me. i know

 

[El Fiendo]

Alright, so my 790FX-GD70 is grinding my gears. I can't even get the memory to its rated 1600 stable, let alone the 3.8GHz CPU clock I'm trying to achieve. It probably doesn't help that I'm fresh to AMD, and overclocking in general.

Ok, first off its more information time:

Ram: cmx4gx3m2a1600c9 aka this
Bios: 1.6
??? Ask for more and I shall tell you more

Ok, so I guess I'll start with the settings I had the most success with.
Bios Settings:

CPU ratio 19x
FSB 200
PCIE 100
CPU/NB frequency 2400mhz
HT link speed 2400mhz
CPU voltage 1.4125v
CPU/NB voltage 1.29v
CPU VDD voltage 1.4v
CPU-NB VDD Voltage 1.2v
HT voltage 1.26v
NB voltage 1.26v
SB voltage 1.20v

Spread spectrum disabled
C1E disabled
Cool n Quiet disabled

Note: My memory was running what my board wants to run it at (1333 MHz @1.60v), and doesn't throw errors in Memtest at this speed. I also tried these settings with the RAM at 1600 MHz @1.65v per mfg specs though I didn't last as long in Prime95.

This got me ~8-10 minutes in Prime95, followed by a BSOD. I'll have to check but I'm pretty sure all BSODs I got were different errors as well. I've done research and found that my RAM isn't officially supported so I guess first thing would be to ask if the RAM would actually cause that much of a problem. It runs 1333MHz seemingly alright, though doesn't accept 1600. I tried the 1600 setting both with and without CPU OC with the same results. I'll try going above the 1.65v rated for this tonight, as I see Corsair says to try as high as 1.9v. As far as I figured, the 'AMD certified / Intel certified' was just marketing BS. Does anyone else have this RAM + Mobo combo?

I pissed around with each of those settings without much success. I looked into the BIOS revision (1.6) and found that people couldn't agree if it was a good revision or not. Does anyone know of a good / tried + true / sexy Bios revision for OCing?

Right now I've got too many variables to even know where to start, any advice anyone can provide is greatly appreciated.

Resources:
I've read a few articles on AMD overclocking, however I'm fresh to overclocking and even fresher to AMD themselves. As such, I'm sure there is much I have yet to understand. So far one of the more useful ones has been Dolk's Guide though there are others I've drawn from.

 

[Kantastic]

If it isn't stable in x64, it isn't truly stable. It means your 32bit clocks are technically unstable as well. x64 code just hits the cpu harder.

But when using it in a 32bit system it wouldn't matter right?

 

[Velvet Wafer]

But when using it in a 32bit system it wouldn't matter right?

right

EDIT: this is the best guide i ever saw for phenom2, thanks fiendo! ;-)

 

[fullinfusion]

I upgraded from the 940 to the 955 and I didn't even try hard to get this clock... 1st attempt a success

 

[El Fiendo]

I upgraded from the 940 to the 955 and I didn't even try hard to get this clock... 1st attempt a success
http://img.techpowerup.org/091120/4ghz611.jpg

Yikes! I thought 1.5v was the CPU's hardware max? As in don't go above or it'll go boom. Or is that only a 'recommended' maximum?

I think I should make my post a new thread, though be forewarned I'll likely bother you now that I've seen your success story.

 

[Chicken Patty]

Good job Brad

How were the temps?

 

[fullinfusion]

Yikes! I thought 1.5v was the CPU's hardware max? As in don't go above or it'll go boom. Or is that only a 'recommended' maximum?

I think I should make my post a new thread, though be forewarned I'll likely bother you,now that I've seen your success story.

I think this mobo goes up to 1.7v but I'll check to confirm shortly....
Im just going by the 940's volts... max 1.55v so i figured hell lets just try 1.5 and see what happens...
I opened aod and raised the bus speed to 210 and she crashed.... I than went into the bios and set the volts to auto...1.36v and haised the multi to x19 and the temps for the clocks are crazy low from what im used to...

 

[fullinfusion]

Good job Brad

How were the temps?

thanks bro... and 45c at 1.5v set in the bios but cpu-z shows 1.52?
I also changed my cooling lines around... pump>rad>cpu>rez
It dropped the temps on the 940 by 2c

 

[Chicken Patty]

thanks bro... and 45c at 1.5v set in the bios but cpu-z shows 1.52?
I also changed my cooling lines around... pump>rad>cpu>rez
It dropped the temps on the 940 by 2c

Why do I have a feeling temps will drop more soon? Meh, maybe I'm just loosin' it

 

[fullinfusion]

Why do I have a feeling temps will drop more soon? Meh, maybe I'm just loosin' it

Ummm someone sent me a larger rad im thinking lol.
Do you know someone that mite have use for a pair of OCZ 1066 2x2ghz Reapers next month?

 

[Jstn7477]

I tried overclocking my 955BE tonight. I got it up to 3870MHz (204*19) in Windows 7 x64 @ 1.4875v with ACC on Auto. Doubt it was stable. Anything above that, like 3900 at 1.5v and 1.512v would get to the Welcome screen and crap out. I might be able to get it to 4GHz on a 32bit system (unstable of course). I'm back at my stable and cool 2.8GHz/1.175v underclock (still tuning it there)

 

[fullinfusion]

I tried overclocking my 955BE tonight. I got it up to 3870MHz (204*19) in Windows 7 x64 @ 1.4875v with ACC on Auto. Doubt it was stable. Anything above that, like 3900 at 1.5v and 1.512v would get to the Welcome screen and crap out. I might be able to get it to 4GHz on a 32bit system (unstable of course). I'm back at my stable and cool 2.8GHz/1.175v underclock (still tuning it there)

Wow that's a bummer man.... but the low clocks are amazing though.... Have you tried to leave the core's stock speeds and just see how low you can drop the voltage?

 

[Chicken Patty]

Ummm someone sent me a larger rad im thinking lol.
Do you know someone that mite have use for a pair of OCZ 1066 2x2ghz Reapers next month?

no sir

 

[fullinfusion]

Well my 4ghz clock being successful has made me down clock to keep temps down into the 30's. I find this chip likes a x19 multi with 1.42 volts... I just ran Mark06 and temp topped out @ 46c. Not bad id say!

 

[Chicken Patty]

looking good bro.

 

[blacktruckryder]

Add me to the club!

Phenom 550X2 BE @ 3.6Ghz

Extra cores unlock and stable in Windows but not stable enough to run any games.

Link to validation.

 

[fullinfusion]

latest mark...