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win freezes during overclock


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hi,

i'm having that issue...

 

during some overclock, like 238*10.5(2500mhz) occasionally windows freezes completely, other times,only mouse freezes but everytinghs keep working normally.

 

it happens not alaways,only some times...

other times pc remain stable even during burning sessions.

 

what it could be? bios? cpu instability,or some os issue?

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Obviously your overclock isn't stable linears.

 

Have you tried running Super PI & OCCT?

 

I've found that too little CPU voltage can cause complete freezes, running Super PI will freeze on me until i up the CPU voltage.

 

When it all starts acting strange(pages freezing but mouse still working etc)i'd say is usually down to Ram. You've either got it clocked too high, too tight timings, too little voltage etc...

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yes i've've tried super pi..it seem fine,no freezing

 

even several times.

 

i dont know occt,i will take a look at that.

 

sometimes it seems perfect,no freezes even after hours of bencking,

 

sometimes it freezes even on surfing web..

 

i'm on 1.85 vcore,238 at 2.5-3-3-6 tccd

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So what are your Temps like?

 

What are you using to test your Ram overclock? Memtest isn't a fully reliable source for testing actual Windows stability.

 

What Chipset Voltage are you running? What volts on the Ram? Could try 2.8v on that TCCD, and the Tref from 6 to 8...

 

Download OCCT from here and try running the 30 minute test and see how you go...

 

Also try this for testing your CPU & Ram Overclock, S&M v1.72.

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well...i think is a temperature problem,for shure

 

i tried occt but it drops me at 90%

then i raised vcore to 1.875 v and even i was not able to close the stability test.

 

i moved my case to my living room,i've air conditioning in there, and after that

 

tried the occt stability test, well passed at 46 degrees on full load.

 

in theese days where i live is very hot, more than 40 degrees outside.

 

but i will try to improve my case air flow,cause now i'm on 53 degrees on full load...

 

i wan to put a 120mm fan on the front of the case for the intake,and a more efficient 120 mm fan on the rear for exaust.

 

my coolermaster fan are very silent,but they don't move air at well.

 

what fan do you guys can suggest to me?

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Yup, sounds like heat is your issue.

 

Well what fans are you after, 80mm? 90mm?

 

I like the Thermaltake Smartfan II's because they can shift a nice amount of air, and come with Fan Controllers. Some of the Panaflo fans are good too.

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actually i have a 120 mm on the rear exaust and an 80mm on the front..but they are supersilent fans, and supersilent means superpoor airflow, the rear 120mm is virtually silent,but it trow out very poor amount of air,these fans are not very good for hard overclocks i think..

i think to loose two 5.25 bay on the front and mod to a 120mm fan with a good air flow,

and change the too weak rear fan.

 

interesting the possibility to adjust manually the speed,so when i dont need performance i can low the cpu frequencies and keep the fan quiet.

 

are the smartfan II quiet at lower speed?

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