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BSOD on OC

post #1 of 17
Thread Starter 
Hello all, Im a noob here at overclocking. I have read many guides and I still do not fully understand all of this. I am trying to get my i7-950 to 4GHZ. Right now I have settled with the BIOS default 3.7 overclock. When I tried to overclock it myself Windows either wouldnt start or I would get a BSOD after it started. Even with low overclocks this happens. Clearly I am doing something wrong and I think it is in the RAM portion. Anyways, help will be appreciated. Thanks.
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post #2 of 17
If when you overclock the CPU it does the RAM as well then that could be why. My mobo supports up to 1600Mhz RAM and when I go over that then I get BSOD. Find out the max RAM speed and then underclock it if you have to.
   
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post #3 of 17
Thread Starter 
this is what the manual says, 6 x DIMM, Max. 24GB, DDR3 1866/1800/1600/1333/1066 Hz Non-ECC, i am running gskill at 1600 and 9-9-9-24 when i try to over clock it.
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post #4 of 17
your motherboard is pretty good for overclocking, maybe you're doing something wrong with the overclock

i have mine set to 3.8 as 4ghz simply dumps out too much heat for my liking

for 4ghz, you can try this to start with, similar to what i set my bios to

-> ai tweaker

ai overclock tuner: manual
cpu ration setting: 23
intel(r) speedsetp(tm) tech: disabled
intel(r) turbomode tech: disabled

bclk frequency: 174
pcie frequency: 100
dram frequency: set to lowest one possible for now when you try to configure your cpu overclock only (worry about ram later)
uclk frequency: auto
qpi link data rate: auto

>dram timing control: go into it and set everything to auto

cpu voltage control: manual
cpu voltage: 1.35
cpu pll voltage: 1.88
qpi/dram core voltage: 1.3
dram bus voltage: set to your manufacture stated value, probs 1.65 or 1.6

-> advanced -> configure advanced cpu settings

cpu ratio setting: x23
c1e support: disabled
hardware prefetcher: enabled
adjacent cache line prefetch: enabled
mps and acpi madt ordering: modern ordering
intel(r) virtualization tech: disabled
cpu tm function: disabled
execute disable bit: enabled
intel(r) ht technology: disabled
active processor cores: all
a20m: disabled

try this, if it doesn't boot, post back, we try a different setting later
Edited by erik257 - 7/27/11 at 4:36am
post #5 of 17
You need to lower the memory speed to 1333mhz.
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post #6 of 17
Thread Starter 
Quote:
Originally Posted by erik257 View Post
your motherboard is pretty good for overclocking, maybe you're doing something wrong with the overclock

i have mine set to 3.8 as 4ghz simply dumps out too much heat for my liking

for 4ghz, you can try this to start with, similar to what i set my bios to

-> ai tweaker

ai overclock tuner: manual
cpu ration setting: 23
intel(r) speedsetp(tm) tech: disabled
intel(r) turbomode tech: disabled

bclk frequency: 174
pcie frequency: 100
dram frequency: set to lowest one possible for now when you try to configure your cpu overclock only (worry about ram later)
uclk frequency: auto
qpi link data rate: auto

>dram timing control: go into it and set everything to auto

cpu voltage control: manual
cpu voltage: 1.35
cpu pll voltage: 1.88
qpi/dram core voltage: 1.3
dram bus voltage: set to your manufacture stated value, probs 1.65 or 1.6

-> advanced -> configure advanced cpu settings

cpu ratio setting: x23
c1e support: disabled
hardware prefetcher: enabled
adjacent cache line prefetch: enabled
mps and acpi madt ordering: modern ordering
intel(r) virtualization tech: disabled
cpu tm function: disabled
execute disable bit: enabled
intel(r) ht technology: disabled
active processor cores: all
a20m: disabled

try this, if it doesn't boot, post back, we try a different setting later
ok thanks, i am writing down those settings right now. For right now my cooling is adequate but I find it was getting high at load so I ordered a H70. So temps will soon be no problem.
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post #7 of 17
As the other say, Set the memory speed low and when you get too 200*20 one of the ram timings will be 1600.

Then you need to get a stable V core, could be as high as 1.35v ,then when that's stable u can push the multiplier higher
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post #8 of 17
Quote:
Originally Posted by jakers11 View Post
ok thanks, i am writing down those settings right now. For right now my cooling is adequate but I find it was getting high at load so I ordered a H70. So temps will soon be no problem.
h70 should be a decent upgrade from the v6. what load temps were you getting at 3.7ghz?

but yeah, see if 23 ratio works out for you, if not you can try 21 or 20 ratio, some say they give you lower cpu temps but i personally didn't see much difference in temps when it was set to 20 and 21...but your cpu might be more sensitive to cpu ratio, trial and error is the way to go

find stable overclock at each cpu ratio, 23, 21, and 20, compare temps, then choose the coolest running one for 24/7 use
post #9 of 17
Thread Starter 
As of now with the 23. My load temps are 70 and my idles are 45. I will try some of the other multipliers. Also, can I turn HT on?
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post #10 of 17
Quote:
Originally Posted by jakers11 View Post
As of now with the 23. My load temps are 70 and my idles are 45. I will try some of the other multipliers. Also, can I turn HT on?
so you've tested it at the setting i sent you and load temp is 70'c?

now try turning ht on if you wish, but to be honest, it doesn't benefit you much if you don't do viideo editing. but yeah, turn it on, just to see if it is stable and what temps you get

what program did you use to load the cpu by the way?
Edited by erik257 - 7/27/11 at 5:32am
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