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AMD Athlon II X4 630 + ASUS M4A785T-M = Please help!

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March 6, 2010 10:30:08 PM

Hi.

I am really desperate as I'm unable to find a satisfying overclock configuration for my PC set-up and I would be really greatful if you could help me out!


CPU: AMD Athlon II X4 630
MB: ASUS M4A785T-M (90-MIBAP0-G0EAY00Z)
RAM: 2x Zeppelin Gold 1GB DDR3 1600 (9-9-9-24) (1.5V)


Everything works fine at stock settings. No problems there.
The system WON'T BOOT with these settings:


CPU/HT Reference Clock (MHz): [220]

Processor Frequency Multiplier: [x14.0]
CPU/NB Frequency: [8.00x]
CPU Over Voltage: [1.45]
VDDNB Over Voltage: [1.20]

HT Link Frequency: [1600 MHz]
HT Link Over Voltage: [1.25000]

Memory Clock Mode: [Manual]
Memclock Value: [400 MHz]
DRAM Timing Mode: 9-9-9-24
Memory Over Voltage: [1.7]


Additional info:
AMD Cool'n'Quiet turned OFF.
PCIE locked at 100 MHz.


I simply don't see why this wouldn't work!

Thanks in advance, I hope we'll find a solution.
a b à CPUs
a b K Overclocking
March 7, 2010 3:03:41 AM

follow the stickys...
just increase it slowly, by 100 Mhz at a time...
once you max out your stable OC, then try setting the memory divider down, or increase the vcore by a little bit.
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March 7, 2010 6:58:06 AM

I started that way but couldn't get past 215 MHz, it is stable only at 210 MHz (2.94 GHz in effect). Don't tell me that's as high as it goes.
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Related resources
a b à CPUs
a b K Overclocking
March 7, 2010 12:04:06 PM

Since these chips have come out, there has been a regular flow of people that have been finding really low OC ceilings on these chips. If I were you, I would take the time to find these threads and check to see if there are any common parts (MB manufacturer/chipsets, memory etc).

My gut feeling is that the 785g chipset is the limiting factor, as 785g + Athlon II seems a VERY common setup, and if my memory is accurate at all, a seemingly common factor amongst those running into low FSB limits.

Try updating your Mobo bios, if it isn't already running the newest version. On my old 710 I was limited to a 225FSB for stability until I updated from the basic bios it was shipped with.
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March 7, 2010 2:17:07 PM

Thank you!

I will try updating my BIOS.
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March 7, 2010 3:33:51 PM

I've updated my BIOS to the latest version and am still getting pretty much the same results. I've been really gentle this time. Upping the CPU/HT Reference Clock by 1 MHz at a time. It works great at 210 (x14 = 2940 MHz), at 215 it - hangs at POST and is stuck until I restart it.

I don't know what else to do :( 
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a b à CPUs
a b K Overclocking
March 7, 2010 5:20:55 PM

Lower your memory multiplier? You may be breaking your memory's stability limit.
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March 7, 2010 5:36:14 PM

I can't go any lower than 400 MHz (800 in effect). The nominal value of my ram is 800 MHz (1600 in effect).
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a b à CPUs
a b K Overclocking
March 7, 2010 8:35:45 PM

I had the same problem with my last locked multi chip, I couldn't get it to boot in 3.33x no matter what I did, thus preventing me from OCing the chip past 273ish FSB.
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March 7, 2010 9:18:17 PM

See if there's a cpu spread spectrum setting in the bios?
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March 8, 2010 6:32:48 PM

I've got a similar setup:

CPU: AMD Athlon II X4 630
MB: ASUS M4A785TD-M EVO
RAM: 2x 2GB Adata DDR3 1600

The memclock value was 400 out of the box and I got memory errors with that setting (no OC). I set the memclock to 667 (1333) and it works great. Try using a higher memclock value, it might be set too low.
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!