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Overclocking AMD Phenom II X2 555 Black Edition Callisto 3.2GHz ISSUES

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September 24, 2010 1:22:20 AM

mobo: MSI 870-g45
Ram: G.Skillz 2x2Gb Ripjaws at 1600MHz 8-9-8-24-32-1T (running stable, 3 passes with memtest86+ no errors)


First... i couldnt unlock any cores, but i gave up on that.... now i can not go over 3.7Ghz, anything over is unstable (increasing multiplier). VID vcore is 1.275v for this processor. I have pushed as far as 1.4volts where it only requires 1.3 to boot windows, but no success. Blue screen of death a couple minuties into Prime95. RAM is stable according to Memtest86+...


NB Frequency: 2600Mhz
CP-NB VDDV is 1.3v
HT blink speed x12
FSB/DRAm 1:4 (1:3.333 is default)


Suggestions guys? Thanks

Increase Voltage to NB?

EDIT: I noticed my mobo does not supply a stable current to the Vcore, when set at 1.375 it ranges from 1.368 to 1.384 according to CPU-Z.

September 24, 2010 1:55:38 AM

Test 2, 4000 Lucas-Lehmer iterations of M19922943 using 1024K FFT length.
FATAL ERROR: Rounding was 0.5, expected less than 0.4
Hardware failure detected, consult stress.txt file.


^^^^^^ That's not RAM is it?
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a c 224 K Overclocking
September 24, 2010 9:40:12 AM

Try dropping the NB Frequency back to 2000Mhz, overclock from there and raise it as a fine tune later.
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September 24, 2010 7:26:08 PM

4Ryan6 said:
Try dropping the NB Frequency back to 2000Mhz, overclock from there and raise it as a fine tune later.


Will do that. Thanks

Quote:
So at 3.7, what speed are you running your memory? If the memory is running faster than spec, that could be the limitation.


Quote:
So at 3.7, what speed are you running your memory? If the memory is running faster than spec, that could be the limitation.


I am running RAM at 8-9-8-24-32-1T at 1600MHz, it is rated at 9-9-9-24-2N. I've got the g'skillz ripjaws series 1600MHz.

It was automatically set to 1333 by the processor so i had to manually change it in bios.

My windows 7 score:

PCU 6.7
RAM 7.6
GPU 7.5
HDD 5.9

So memory is the strongest point... Would you recommend dropping it to stock volts,specs? I am running it at 1.55v instead of 1.5 suggested.


Thank you.
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September 24, 2010 7:48:17 PM

Here i took a snapshot of vital info :) 


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September 24, 2010 10:37:03 PM

ttt
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a b K Overclocking
September 25, 2010 2:43:52 PM

Lower your HT Link and North Bridge Frequency to 1GHz (5x multiplier). Leave the FSB alone until you've maxed out on the multiplier. You should also disable Cool n Quiet in the BIOS and if you're not going to use any virtual machines (including XP mode) then you may as well disable AMD-V as well.
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a b K Overclocking
September 25, 2010 2:46:16 PM

^ once you've maxed out on your core speed you can raise your HT Link and North Bridge speeds again to see what you can get and remain stable. As long as they are over 1Ghz though there isn't much of a detriment to your performance at all.
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September 27, 2010 9:08:05 AM

megamanx00 said:
Lower your HT Link and North Bridge Frequency to 1GHz (5x multiplier). Leave the FSB alone until you've maxed out on the multiplier. You should also disable Cool n Quiet in the BIOS and if you're not going to use any virtual machines (including XP mode) then you may as well disable AMD-V as well.

I can not locate AMD-V anywhere in the bios..
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October 4, 2010 7:03:23 PM

still stuck at 3.7.............
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a b À AMD
a b K Overclocking
October 4, 2010 10:51:43 PM

You most likely need more than 1.4V to get over.
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October 6, 2010 12:09:14 AM

how far can i push the voltage?

the VID is only 1.275
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a b À AMD
a b K Overclocking
October 7, 2010 10:34:46 AM

Its the core voltage not the VID and anything under 1.5 is OK as long as the temps are not peaking over 62C
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September 1, 2011 8:40:01 PM

I know that i'm a bit late but im running this processor on an asus M4A88TD-V Evo/USB3 and i'm getting it up to 4.1ghz

Multiplier is on 17.0
Bus speed is 240MHz
HT Link is on auto but is at 2410Mhz
Voltage is the stock 1.375V

I get an an occasional error on prime 95 but if you give the system10mins to warm up and get to work then there don't seem to be any problems.

with the above settings you should be able to run your ram at 1600Mhz as well ( I can and i have 12gb of corsair with stock timings of 9-9-9-24)

Hope that helps
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September 1, 2011 10:27:07 PM

I'm running mines at 4Ghz,

20x Multi and all else stock apart from vcore which is at 1.375V or 1.4V 9I forget).
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a c 224 K Overclocking
September 2, 2011 12:51:24 AM

This topic has been closed by 4ryan6
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September 12, 2011 8:57:47 AM

Best answer selected by Klimentiy.
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!