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Old 1 Week Ago   #1 (permalink)
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Default OC gods whataya think?
Just accomplished this baby, I want to know what you guys think. Take a look at all the settings and give me your input. Ran OCCT Linpack for 15 minutes, no errors. Will be running Prime95 tonight.

*Update 11/13 Ran into some problems last night, so this morning I did some trouble shooting, I was able to hit 3.8MHz once more with a lower voltage now I'm at 1.55v, I am comfortable with max 100% load on OCCT Linpack gets to 52-53C Max.





- Max load at 100% is 52-53C, Can this run 24/7(not always) with the assumption that this will past my 12 hour blend test tonight?

- 1.55v vcore(I have some vdroop), is my chip going to melt and explode or I'm fine?

- First time playing with the CPU NB voltage/NB Voltage, are they fine?

- RAM? HT Link they seem fine?

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Last edited by phaseshift : 1 Week Ago at 07:14 PM
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Old 1 Week Ago   #2 (permalink)
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1.6v for CPU sounds too high....
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Old 1 Week Ago   #3 (permalink)
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What MrAMD_Fan said. I achieved 4GHz on air back in March with 1.580V so you might be able either to reduce the voltage a bit, either to push the chip a lil further.
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Old 1 Week Ago   #4 (permalink)
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If it passes the stability tests, yes it'll be fine. Don't worry too much about CPU voltage (up to 1.55-1.60v). Its an AMD chip, they have yet to make a CPU that can't take that kind of voltage.

As far as the NB and RAM and stuff, I haven't messed with anything past Socket 939, so I honestly don't know (other than the Q6600 in my sig, which isn't even mine).
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Old 1 Week Ago   #5 (permalink)
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Originally Posted by MrAMD_Fan View Post
1.6v for CPU sounds too high....
1.6v for the clockspeeds you're hitting (3825MHz) IS too high unless it won't do it any other way.

Provided you don't have a really crappy chip, you can use much less voltage to get the same clock. Excess voltage will only make it run hotter and it's just not neccesary to do it with in most cases.
I'd go for around 1.42v at those speeds and see how it does. If it isn't stable, bump it up to the very next setting and try again. Repeat as needed to find the voltage your chip wants to run with stability at those speeds.
Since temps also factor into your overall stability, I'd go for the amount of voltage needed to do it with stability and no more.
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Old 1 Week Ago   #6 (permalink)
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Too much voltage bro. Try to do your best at using the least amount of voltage you can afford. Otherwise not bad.

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Old 1 Week Ago   #7 (permalink)
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alright I'll try taking it down a notch, if it becomes unstable could I up the CPU NB voltage/ NB to help with stability? about how high should I go?

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Old 1 Week Ago   #8 (permalink)
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I've ran into some complications as I think my RAM is limiting me. 1400mhz and linpack will freeze on me. Regular OCCT stress tells me my CPU is stable, so I conclude that my RAM is the problem. For some reason I can't turn the divider down to 1032mhz, I'll have to reset CMOS if I do, any troubleshooting?

System: Black Mamba
CPU
Phenom II x3 720 3.8ghz 1.55v		 Motherboard
MSI 790FX GD70		 Memory
G.Skill 4gb DDR3 RAM 1600mhz 		Graphics Card
x2 Sapphire HD5770 1020/1440 1.2v
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WD Caviar Black 640gb		 Power Supply
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Old 1 Week Ago   #9 (permalink)
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Quote:
Originally Posted by phaseshift View Post
I've ran into some complications as I think my RAM is limiting me. 1400mhz and linpack will freeze on me. Regular OCCT stress tells me my CPU is stable, so I conclude that my RAM is the problem. For some reason I can't turn the divider down to 1032mhz, I'll have to reset CMOS if I do, any troubleshooting?
Could be a RAM problem going on.
It's been debated that most anything over 1333MHz RAM speed is of little to no benefit. I agree dropping your divider down a notch is a move in the right direction after you sort out the BIOS problem with your divider setting.

Since I don't have that model MB, perhaps someone with it could help out.
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Old 1 Week Ago   #10 (permalink)
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Quote:
Originally Posted by Kryton View Post
Could be a RAM problem going on.
It's been debated that most anything over 1333MHz RAM speed is of little to no benefit. I agree dropping your divider down a notch is a move in the right direction after you sort out the BIOS problem with your divider setting.

Since I don't have that model MB, perhaps someone with it could help out.
it's weird on stock settings I can run 1333mhz no problem, the thing is my divider is at 1401mhz a notch down puts it at 1054mhz and that causes me to clear cmos, does anyone know why? I upped the RAM voltage to 1.7 from 1.65 lets see how that goes.

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Phenom II x3 720 3.8ghz 1.55v		 Motherboard
MSI 790FX GD70		 Memory
G.Skill 4gb DDR3 RAM 1600mhz 		Graphics Card
x2 Sapphire HD5770 1020/1440 1.2v
Hard Drive
WD Caviar Black 640gb		 Power Supply
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