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i5 2500k overclocking, need assistance pretty please. - Page 2

post #11 of 31
Thread Starter 
Well, whatever smile.gif

I got my CPU stable on a 15min 1344/1792 test on following settings:

- 1.4000 Vcore
- 1.13750 VTT
- 1.57500 PLL

62c max temp.

Though i am not happy with the Vcore to achieve this, 1.400 feels and probably is way to much for a 4500mhz overclock to me.
Lowering the Vcore however results in a BSOD 124.

When i run on offset AUTO voltage, my CPU is set on 1.450v as well.


Do i have such a 'garbage' chip? Or did i oversee something and could someone point me into the right direction?
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post #12 of 31
Thread Starter 
Other settings are:

PLL Overvoltage: Enabled
Memory frequency: Auto
LLC: Ultra High
VRM Frequency: 350
Phase and Duty control: Extreme
CPU current capability: 140%

CPU Manual voltage: 1.400v
DRAM: 1.500v (stock)
VCCIO: 1.13750v
PLL: 1.5750v
Spread spectrum: Enabled
C1E: Enabled
C3 / C6: Auto
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Titanium Red
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post #13 of 31
For 4.5ghz you shouldn't really need to mess around with any of the voltages other than your vcore. If you know exactly what you are doing then you can use these to further tweak your overclock but shouldn't be necessary for 4.5ghz. Your probably doing more harm than good.

Set your VCCIO, VCCSA, PCH and PLL voltage to auto (leave internal PLL overvoltage at the top enabled). You can leave your DRAM voltage on auto as well but I like to set it to my RAM's rated volatge as auto seems to overvolt quite alot.

You will then need to ensure the following is correct.

Change your memory frequency manually to whatever your RAM is rated at. I would then ensure that your RAM timings are correct. An easier method would be to try using XMP mode as it will detect all this for you and adjust accordingly.

Set spread spectrum to disabled.

Everything else seems fine so from here I would then start to gradualy lower your voltage and then carry out your stress tests.

I'm sure we can get you down from 1.4 vcore as that does seem high.
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post #14 of 31
Thread Starter 
Thanks, im gonna see if i can get lower then 1.400v on these settings you mentioned.
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post #15 of 31
Thread Starter 
PLL Overvoltage: Enabled
Memory frequency: 1600
LLC: Ultra High
VRM Frequency: 350
Phase and Duty control: Extreme
CPU current capability: 140%

CPU Manual voltage: 1.400v
DRAM: 1.500v (stock)
VCCIO: AUTO
PLL: AUTO
Spread spectrum: Disabled
C1E: Enabled
C3 / C6: Auto

Putting all voltages on AUTO except for the DRAM (1.500v) and the Vcore (1.400) i passed both 15min 1344/1792 tests as a first indication.
1.400v for 4500mhz sounds too much to me, therefore i lowered the vcore by one notch to 1.395v and this results in a BSOD 124 after about 5min of stress testing. Same goes for a 1.390v Vcore......

So?... I either have a garbage chip or there is still something wrong? This is driving me crazy...
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post #16 of 31
Thread Starter 
Anyone suggestions?
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post #17 of 31
Thread Starter 
I dont like bumping but i dont want to give up on this.
No one that knows what this could be? Do i have such a "bad" chip?
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post #18 of 31
It certainly seems that way dude, especially considering you've investigated both VTT and PLL. The only way to proceed from here is to drop your vcore back down one notch (as you already have) and then independently raise/lower VTT or PLL to see if you can regain stability with the lower vcore.

If not, then you have a weak chip.
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post #19 of 31
this is a key thing to remember :

Results are representative of 100 D2 CPUs that were binned and tested for stability under load; these results will most likely represent retail CPUs.
1. Approximately 50% of CPUs can go up to 4.4~4.5 GHz
2. Approximately 40% of CPUs can go up to 4.6~4.7 GHz
3. Approximately 10% of CPUs can go up to 4.8~5 GHz (50+ multipliers are about 2% of this group)


sadly, i can do 4.5ghz on 1.36v needing 1.40v to do 4.7ghz and 4.8ghz needs 1.45v or so. getting 5ghz requires.....1.5v
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post #20 of 31
rck1984 You and me are on the same boat my chip just doesn't want to be stable no matter what smile.gif
I am running at stock for a month now coz after 2 days trying to get it stable at 4.6 I kinda gave up and dint have free time just to sit down and tweak the hell out of it.
You just got a bad chip, that's it smile.gif
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