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Phenom II steppings and max OC 550-940 - Page 230

post #2291 of 2829
Thread Starter 
Quote:
Originally Posted by sp4wners View Post
Hey guys!

Change my stable OC results on the list please. Sending You new specs.

http://valid.canardpc.com/show_oc.php?id=599879
vCore is 1.550v
HT - 1.46v
VDDNB - + 150mv
DDR2 - 2.2v
Windows - Vista Ultimate x86
Cooling - Everything on AIR
NB - 2040MHz
HT - 2040MHz
Quote:
Originally Posted by MGlBlaze View Post
I got very unlucky with mine, I think;

Phenom II 955
Unknown stepping
Revision RB-C2
3811Mhz clock speed; 16.5 multi, 231HTT ref
1.50 volts (1.54 including ACC)
1.3v NB
2541Mhz NB frequency
2310Mhz HTT link speed, unknown HTT volts
ASUS M3A79-T Deluxe
Bios version 905
Air cooling; ThermalRight Ultra Extreme 120 Copper + two 120mm 110CFM fans.
Windows Vista 64bit

I'm certain it's the CPU itself that is limiting me; the same system configuration got my 9950 up to (what I think is) a very respectable 3.3Ghz rock solid... oh well. =/
Can you guys please post some ss of you stability tests?


@Drin: seems to be I'm not the only 1 who can not get this thing up to 4GHz I hope you gsk3rd can get this baby up to 4GHz stable.

@nisean: although prime95 is running, it's only running for 5min. can you post a ss of a longer run? I did add you, cuz 3.6GHz @ that voltage would be ok
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Sulaco
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post #2292 of 2829
Hello Xeno,
The Prime95 was running for 24 hours and 5 minutes... from night of 9 July to the night of 10 July. The screen shot shows it. Just 5 minutes would be unacceptable for stability.
Regards.

To thlnk3r regarding the mods for NZXT Beta:
Here are my observations:-
1. There are two heat producers: (A) the CPU heat sink throwing heat towards back of chassis along with the SB and NB; and (B) the Sapphire 4870 card.

2. The single 4870 would throw off a considerable amount of heat when stressed. Since it is generating the heat from bottom, that heat must be taken out before it reaches the top of the 4870 PCB where is would heat up the SB,NB and the cpu. I am thinking of attaching a piece of plastic at the side panel. When closed, that plastic would somewhat create a closed air space from the 4870 level down to the chassis bottom. Things to consider: the heat pipes of 4870 touching plastic, the plastic rubbing along the exposed components on solder side of 4870 and creating static when one is trying to open or close the side panel.

3. I already have a slot-mounted blower under the 4870 and it is drawing away some heat from below. The NB heatsink on mobo prevents me from mounting it above the 4870. But this is not enough. A strong fan sucking out heat from the enclosed airspace below the 4870 needs to be mounted on the side panel. The supply air for this lower airspace shall be the front 120mm fan of NZXT. In other words, the air pushed by the 120mm front bottom fan gets sucked out through the hard drives and then through the fans in the enclosed airspace. Holes in fan-grills of side panel may not match where I want to put the new fan -- so a 3/8" drill and some cheap black spray paint would have to do!

4. A similar air flow pattern must be implemented on the upper half of the airspace. There is no problem in sucking that air out... just add a powerful 120mm fan at back and also the Corsair PS has a huge fan at the bottom, helping to exhaust the outflow from cpu heatsink and SB. The problem is providing supply air in the upper half. There are two possiblilities: use lower two 5.25" bays to mount a powerful fan pushing air from the front grill or mount a 80-90mm high velocity fan on the side panel directly above the DRAMs and direct the air first at DRAMs using plastic channels.

5. The airflow in either airspace must be balanced; I mean the supply air needs to be more or less equal to the exhaust for each separate airspace. If not, they will be stealing/pushing more and more air from/to neighboring airspace. Excess holes and openings in the airspace that disrupt the designed air flow path must be eliminated.

6. This is the problem of working with mid-towers. If you want to increase airflow, you must sacrifice the quietness. You could increase the volume of the case and reduce PS cable clutter or go to water-cooled system to evade the noise.

So, I guess it is easy to dream rather than actually doing it. Hope I can pull it off with some effort.
Regards.
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post #2293 of 2829
Quote:
Originally Posted by XenoMopH View Post
Can you guys please post some ss of you stability tests?


@Drin: seems to be I'm not the only 1 who can not get this thing up to 4GHz I hope you gsk3rd can get this baby up to 4GHz stable.

@nisean: although prime95 is running, it's only running for 5min. can you post a ss of a longer run? I did add you, cuz 3.6GHz @ that voltage would be ok
Will a default run of OCCT be alright, or am I going to have to run P95 for a few hours?
    
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post #2294 of 2829
New CPU for jimibgood. Stepping 0914/CPU/NB voltage 1.5... Vcore 1.6 cpuid not correct. Auto Hypert.
Phenom II 955
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Phenom II 955
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post #2295 of 2829
Thread Starter 
Quote:
Originally Posted by nisean View Post
Hello Xeno,
The Prime95 was running for 24 hours and 5 minutes... from night of 9 July to the night of 10 July. The screen shot shows it. Just 5 minutes would be unacceptable for stability.
Regards.
sorry, i must have misread it.

@MGlBlaze; you could do both to test it's stability
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post #2296 of 2829
Nisean, I think one of the main problems with the NZXT Beta is the front of the case where the airflow is suppose to come in. On my coolermaster cm690 I had a similar set up where the drives were side ways (just like yours). I didn't matter what 120mm fan I mounted I still had front airflow issues. As soon as I switched to the Antec 900 my problems went away. I'm assuming because the drives were mounted parallel with the case...same thing with the drive cage. The drive cage on your NZXT looks like it's really prohibiting air that is coming in...

Good luck buddy
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post #2297 of 2829
Interesting I was able to get mine to boot into windows today at 3.8 with a vcore of 1.475. I have been trying for ages but with higher voltage. I also raised my NB from 1800 to 2400. It crashed OCCT after 5 mins but it's encouraging.
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post #2298 of 2829
Quote:
Originally Posted by robbo2 View Post
I also raised my NB from 1800 to 2400. It crashed OCCT after 5 mins but it's encouraging.
Robbo2, did you try bumping up the NB voltage a little bit to see if that adds any stability?

Good luck
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post #2299 of 2829
I have no idea what my NB voltage is at default. I'm running my NB link @ 1.4 but I suspect it's a bit high
Frank
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Dominatrix
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post #2300 of 2829
Quote:
Originally Posted by robbo2 View Post
I have no idea what my NB voltage is at default. I'm running my NB link @ 1.4 but I suspect it's a bit high
I believe NB voltage is around 1.175v stock. I usually turn mine up to 1.5 for my 2800 clock on the nb but I also have a fan on it. If the link you are referring to is at 1.4 I believe that is in the danger zone. I usually run mine no higher than 1.3. Go into bios and set everything to auto. Then boot into windows and open up AOD. That will tell you your stock voltages.
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