Official Phenom II x2 550 Club! - Page 52 - Overclock.net

MrAMD_Fan · 07-31-09

Quote:

Originally Posted by Radiopools

Temps have been floating in the 46-48 range with occasional quick spots in the 49-50 range while prime95 running. Is that considered a full load?

I'm at stock voltage.

A full load is when all cores are at 100% cpu usage.....

Radiopools · 07-31-09

Quote:

Originally Posted by MrAMD_Fan

A full load is when all cores are at 100% cpu usage.....

*looks at task manager performance tab*

so...that's a yes

ocfanboy · 07-31-09

Hey guys,I'm quite new to overclocking so here goes.

CPU: 550 x2 BE
CPU cooler: Stock
Mobo: Asus M4a78-E
Case: Cooler master centurion ( 8 fans including CPU fan)
Memory: 4x 1gb Ocz platinum 800 MHz
Gpu: 4850
Psu: Corsair 750 tx

tried to unlock cores but failed...
Now I'm tryng to overclock the 550 as best as I can for now until I get a better cooler for my pc...
I started off on 3.9 ghz with vcore at 1.4 got the bsod
tried the same at 3.8 and also got the bsod
I'm now at 3.7 with vcore at 1.4 ran occt for an hour no bsod, temps were at idle 36c and load was at 49-51
ran prime 95 for bout 3 hours stable also idle was 36c and load was at 52...
I took up the ghz by using the multiplier only and bumped up the vcore..
That's all...
Do I need to add more power to anything else?
Are those temps Safe for daily use of bout 2 hours a day?
If I wanna take it to 3.8 add more vcore and it still bsod do I have to increase power some where else?
What are Max safe idle and load temps for this CPU so I know how far I can oc
also what causes bsod if temps are not so high?
Thanks guys

Radiopools · 07-31-09

maybe I'm just nervous about that kind of thing but I don't think I'd leave it at 3.7ghz without additional cooling. I've heard 3.5-3.6 is the highest you should take it on stock cooling.

That being said, I'm 10-hours stable with prime95 @ 3.5 Ghz overclock, and I'm going to stay here until I figure out which cooler will fit in my case

http://valid.canardpc.com/show_oc.php?id=629441

memnoch_thedevil · 07-31-09

Quote:

Originally Posted by Radiopools

That being said, I'm 10-hours stable with prime95 @ 3.5 Ghz overclock, and I'm going to stay here until I figure out which cooler will fit in my case

http://valid.canardpc.com/show_oc.php?id=629441

Just about any CPU cooler will fit in the 300...I have a DarkKnight, and the TRUE is roughly the same size, and I have heard even the Mega fits as well. I also have the side 120mm fan mounted to the side panel, and the cooler fits just fine.

So here is my stability run from last night, a 20 pass run on Intel Burn Test on Maximum.

For another stability test I encoded 7 movies at the same time this time (instead of 6 like last time), during which I streamed a movie to my TV in the living room, while at the same time my wife was playing FarmTown on Facebook......pretty dam stable if you ask me.

I have the RAM undervolted, the CPU undervolted, Northbridge is at stock, and during the run CPU temp never went over 41c, which according to my previous testing is between 8-10c hotter than my cpu core's, which would make that roughly 29-31c on full load, with my idle around 18-20c

I use HW monitor because it's easier on the eyes than Everest, but the temps match up in both programs, and with the Gigabyte program, as well as in the BIOS.

So:
CPU V Core = -.075v (1.325 - .075 = 1.25v)
NB CPU VID = Stock
NB Volt = Stock
RAM = 1.95v

Think I should try and go lower on the volts (probably RAM is only one left I might be able to go down some more on, as the CPU and NB only let me go down in .025 increments, Gigabyte Bios FTL

)? Or maybe try raising the FSB now to increase the OC a bit?

(to view in original size)

Let me know what you think, and what else I should do to further this...if it undervolts that well, I may put the stock cooler back on there, and save me some money and put the DarkKnight on my i7 when I get the rest of the parts lol

MrAMD_Fan · 07-31-09

Mem, what is your stock voltage on the memory? I have that 8500 stuff that says stock is 2.1v but 6400 is usually 1.8v (i think) Have you tried Prime95... it seems like the best stability thing for the cpu. I did the large FFT (maximum heat, power consumption,some RAM tested) and it just freezes with 4 cores.... i'm curious if you could give that a try with the 4cores (you don't have to obviously), reason i'm asking is that I had 4cores enabled and tried the other prime95 Small FFT (maximum FPU stress, data fits in L2 cache, RAM not tested much) and i thought that it was passing on 4cores... i will try again....
I like the undervolting and may try that to reduce the heat when i make the sig rig my main pc... Looks good!

Radio, if you notice we both (mem and I) have aftermarket coolers with the 300... Mine fits really well, in fact it is real close to the top fan which really gets the heat right out the top of the case... i love it!

**thlnk3r** · 07-31-09

Quote:

Originally Posted by Contagion

btw, how do you find out if your CPU has a good potential OC? the stepping on CPU-Z?

Contagion, this isn't always an indication that the processor will overclock well. In reference to socket 939, I had a LCBQE Opteron 170 that overclocked quite well on stock voltage. Others with my same stepping were not so lucky. In my opinion it's all based on luck.

Quote:

Originally Posted by MrAMD_Fan

i got the 4 cores unlocked but everytime i start prime95 it locks up the pc. I wasn't getting that when i originally had the 4 cores unlocked.

MrAMD_Fan, have you flashed your BIOS since the first time you tested with four cores unlocked?

Quote:

Originally Posted by ocfanboy

I'm now at 3.7 with vcore at 1.4 ran occt for an hour no bsod, temps were at idle 36c and load was at 49-51
Are those temps Safe for daily use of bout 2 hours a day?
What are Max safe idle and load temps for this CPU so I know how far I can oc
also what causes bsod if temps are not so high?

Ocfanboy, the temperatures you listed above are fine. Your machine will never be running that high of load so you probably have nothing to worry about it. Regardless 51C full load is decent. Personally I prefer to stay below 55-60C full load.

There could be quite a few things causing the BSOD's and just not high temperatures. It could be excessively high HT speeds or memory frequency ect. Can you include a CPU-Z screen shot of your recent stable overclock?

Good luck

Radiopools · 07-31-09

Quote:

Originally Posted by MrAMD_Fan

Radio, if you notice we both (mem and I) have aftermarket coolers with the 300... Mine fits really well, in fact it is real close to the top fan which really gets the heat right out the top of the case... i love it!

Man, that sounds DELICIOUS! Thank both of you for chiming in on that. Looks like I'll be ordering a Dark Knight or TRUE here shortly

Do either of them require removal of the mobo to install? I like how the stock fan just has that bar that goes through and clips onto the ring around the cpu, very easy.

HondaGuy · 07-31-09

Quote:

Originally Posted by Dopamin3

Newest everest works. I believe 5.02 displays the cpu temp right, but not each core.

Sometimes the Beta will work with Each core

MrAMD_Fan · 07-31-09

Quote:

Originally Posted by Radiopools

Man, that sounds DELICIOUS! Thank both of you for chiming in on that. Looks like I'll be ordering a Dark Knight or TRUE here shortly

Do either of them require removal of the mobo to install? I like how the stock fan just has that bar that goes through and clips onto the ring around the cpu, very easy.

The xiggy that i have does not require removal of the motherboard... the fan mounts on what people say is the wrong side (it goes sideways instead of back toward the back). But like i said before, it is perfect IMHO, because it blows thru the heatsink and right out the top and the top fan just pushes it out...

Thnk3r, no i've not updated anything.... i just tried with 3.1ghz and 1.5v and i tried to run a report in everest and it locks up.... also i was trying to keep the 4 cores from enabling and they keep turning on.... I'm gonna try a reset again.... last time after i did setup defaults the 4 cores stayed on.... strange...

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