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Help with OCing Phenom fx-5000 Quad Core

post #1 of 13
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I have a unlocked Phenom fx-5000 quad core and right now it is @ 2.86GHz Stable with a 1.328v voltage. I was wondering how to overclock it over 3.0GHz but sometimes it doesn't post and sometimes it just freezes up when the starting logo appears.
    
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post #2 of 13
I would Google Phenom FX-5000 because I believe that I saw some articles on it where people had done the OC. First you have to see if you can get the quad stable. You might want to up the CPU-NB voltage to say 1.2 or 1.25 and see if that helps with stability.

It would help also if you could post a screenshot of CPU-Z with the main page, memory page and SPD page.

The other thing that might help (not sure) would be to set ACC to -2% for cores 0 and 1, set ACC to +2% for cores 2 and 3. This worked for another person, but it was with a 555 I believe. I can do that in BIOS but I believe that AMD Overdrive would also allow you to do that. I do everything from BIOS.

Also what is HT Link speed (from main page of CPU-Z)?
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post #3 of 13
Thread Starter 
http://i48.tinypic.com/b8o8p4.jpg
here is the screenshot i took. It is stable with quad core and it is stable at 2.86GHz
    
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post #4 of 13
What is your CPU-NB voltage set at? I had to give mine a bump because I was getting a little bit of a hang on post and sometimes a reboot when Windows 7 started. A small boost to CPU-NB can help to stabilize things.

Also your ram is already OC'd to 866. I take it that you already set it to 667 speed in BIOS (yields 866 when OC'd). What voltage is your ram at right now? My son's computer would not boot when we tried to take the ram up to 900. You might want to set ram down one more notch in the BIOS. Or else you could try and raise the ram voltage.

Those POST issues and freezes could be ram related.

Your HT Link speed seems a bit low at 1300. Is that the board doing that?
Edited by coonmanx - 6/11/10 at 5:17pm
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post #5 of 13
Thread Starter 
Quote:
Originally Posted by coonmanx View Post
What is your CPU-NB voltage set at? I had to give mine a bump because I was getting a little bit of a hang on post and sometimes a reboot when Windows 7 started. A small boost to CPU-NB can help to stabilize things.

Also your ram is already OC'd to 866. I take it that you already set it to 667 speed in BIOS (yields 866 when OC'd). What voltage is your ram at right now? My son's computer would not boot when we tried to take the ram up to 900. You might want to set ram down one more notch in the BIOS. Or else you could try and raise the ram voltage.

Those POST issues and freezes could be ram related.
My NB voltage is stock right now. Also my voltage of the ram is 1.8V.
    
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post #6 of 13
    
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post #7 of 13
I was talking about the voltage for the CPU-NB, that is the voltage for the on chip IMC (integrated memory controller). Usually it starts at about 1.12 volts and a gentle bump to say 1.2 or 1.25 can aid in stabilizing the ram.

Also 1.8 volts is stock for 800 speed DDR2. If you want to keep going higher with ram speed it may require more volts. Can you post the SPD page from CPU-Z? You can use snippet tool in Windows 7 to get a screenshot and then just add it to your post. The SPD page gives JEDEC information for the ram.

I suggested Googling a review of your ram because sometimes they OC it when they test it and that can give you a good idea how far you can push your ram and what voltage is necessary. On my son's computer we could not push his ram past about 900 because we didn't have any control over the ram voltage. I had read a review where his ram had gone as high as 1000 speed, but that was using 2.1 volts. I generally don't OC the ram very much.

Check out this link where a guy has it OC'd to 3 GHz. He had to put his ram down to 533 speed to get there. That put his ram to 746 speed.

http://www.istorya.net/forums/comput...-test-log.html
Edited by coonmanx - 6/11/10 at 9:03pm
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post #8 of 13
I'm guessing that your best bet will be to set the ram speed down one more notch. That should clear up those hangs and freezes and allow you to go farther. Then you also don't have to add any ram voltage.

I was also thinking along the lines of the Phenom IIs and I'm not certain that your chip has IMCs.
Edited by coonmanx - 6/11/10 at 9:19pm
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post #9 of 13
Thread Starter 
Quote:
Originally Posted by coonmanx View Post
I'm guessing that your best bet will be to set the ram speed down one more notch. That should clear up those hangs and freezes and allow you to go farther. Then you also don't have to add any ram voltage.

I was also thinking along the lines of the Phenom IIs and I'm not certain that your chip has IMCs.
Sry i'm still new to this stuff what is IMC?

Edit: Nvm about what i said before. I think even at 2.86GHz(which is what im on) is still unstable. I was playing tf2 and other games it freezes sometime. Also another factor could be my video card. It's been artifacting after when it freezes. Also i tried lowering my ram speed still the same results. Btw if u want to know what my ram is its this : http://www.newegg.com/Product/Produc...82E16820227189
BTW i think my motherboard is making the ht link speed low because i set it at like 1820mhz it shows it as 1300
Edited by PiEownz - 6/12/10 at 9:06pm
    
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post #10 of 13
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Just notice I think its my EVGA 8800GT. I don't know why? Any reasons? Or should i just post it in Nvidia section?
    
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