ibt freeze test is unstable

[gasolin]

I have tried having my i7 4790k at 4.5 ghz on all core but get's very hot using ibt, prime 95(thermalright mazho with 1 ty-147 fan) i want to keep temps below 80 degrees celsius on any benchmark, at 4.0 ghz i can have it running at 1.00 vcore.

I noticed that the flame in the freeze test is unstable, changed vcore to 1.050 to see what would happen to the freeze test flame, the flame is still unstable.

Is that a problem?

Do i need to set vcore at 4.0ghz on all cores (no turbo) to 1.100 or higher to get the ibt freeze test 100% stable?

 

[Toothless]

Sounds like your cooling isn't strong enough.

 

[Steevo]

Lower your clocks or get a better cooler before you kill that chip.

 

[MxPhenom 216]

there are other settings that might need to be tweaked a little. Those chips turbo to 4.4ghz out if the box at default settings anyways.

 

[gasolin]

it's running 4.0ghz do i need to try 1.10 to make the flame in the freeze test stable?

 

[PaulieG]

it's running 4.0ghz do i need to try 1.10 to make the flame in the freeze test stable?

None of that makes a damn bit of difference if you are already running hot. First get your cooling straight, then worry about whether you can pass a stability test. You may want to start by reseating your cooler, and make sure you have just the right amount of thermal paste.

 

[gasolin]

nothing wrong with my temps at 4.0 ghz

 

[MxPhenom 216]

it's running 4.0ghz do i need to try 1.10 to make the flame in the freeze test stable?

it does not. It runs at 4,0ghz base and 4.4ghz with turbo (you will run at turbo clock in high stress apps like IBT). Like everyone has been saying get your cooling in order and then you might want to research how to overclock Haswell, because it doesn't seem you have a clue of what you a doing.

For one, your chip is going to run hot no matter what in IBT. Also I dont think anyone has any idea of what you mean about an unstable flame. All you should be worrying about with IBT is if the output is the same each time. If it changes you are unstable.

You should not have to change any voltages to run at the stock clock of 4.0GHZ base to 4.4ghz turbo.

I also recommend using Prime 95 and loop through x264 encoding benchmark for a few hours, instead of using IBT. Then move to games and other benchmarks to make sure you don't crash/blue screen

 

[gasolin]

My cpu is running 4.0ghz not 4.4ghz, when you set multiplier to 40 on all core it runs 4x4.0ghz and you can disable turbo, my cpu never goes higher then 4.0ghz (to be precise 4006.2 mhz)
and since turbo is disabled,max speed on all 4 cores is 4.0ghz, it won't go to 4.4ghz.

Do really thing at stock speed i could have vcore at 1.00? I have had it at 4.0ghz on all cores and vcore at 1.00 (now 1.051 according to cpu-z) my mb is a Asus maximus Vii ranger Z97

 

[MxPhenom 216]

My cpu is running 4.0ghz not 4.4ghz, when you set multiplier to 40 on all core it runs 4x4.0ghz and you can disable turbo, my cpu never goes higher then 4.0ghz (to be precise 4006.2 mhz)
and since turbo is disabled,max speed on all 4 cores is 4.0ghz, it won't go to 4.4ghz.

Do really thing at stock speed i could have vcore at 1.00? I have had it at 4.0ghz on all cores and vcore at 1.00 (now 1.051 according to cpu-z) my mb is a Asus maximus Vii ranger Z97

Why did you disable turbo? Probably your first mistake.

 

[gasolin]

Why would it be a mistake?

Why would i need turbo? (Higher temps)

Why do i need turbo when i have set all cores to 4.0 ghz all the time?

 

[MxPhenom 216]

Why would it be a mistake?

Why would i need turbo? (Higher temps)

Why do i need turbo when i have set all cores to 4.0 ghz all the time?

and that's why.

 

[erocker]

Why would it be a mistake?

Why would i need turbo? (Higher temps)

Why do i need turbo when i have set all cores to 4.0 ghz all the time?

You do not need to keep the chip at 4ghz all the time. Set it back to stock, let the CPU clock down when not being used and let turbo do it's thing. See if your CPU is getting too hot from there.

 

[gasolin]

It's only hot under ibt,prime 95 (100% usage) from about 1.100 volt and 4.1-4.2 ghz. 4.0 ghz and 1.000-1.050 volt it's no more then 80 degees

Stock vcore is way to high about 1.200 or 1.250 volt and gets hot.

With Asus realbench temps are fine

 

[erocker]

It's only hot under ibt,prime 95 (100% usage) from about 1.100 volt and 4.1-4.2 ghz. 4.0 ghz and 1.000-1.050 volt it's no more then 80 degees

Stock vcore is way to high about 1.200 or 1.250 volt and gets hot.

With Asus realbench temps are fine

Okay. Then use your computer normally.

 

[xfia]

http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html this was written by a Intel thermal specialist so follow what he says and he gives the version of prime you should use. some versions can produce unrealistic temps.

 

[gasolin]

I use prime 26.6

 

[xfia]

if your getting 80c in prime with under stock voltage you need to just go back to stock settings and improve your cooling if you want to overclock. there is no point in overclocking a 4790k unless your going for at least 4.6ghz imo. its honestely the best stock gaming cpu to date so if that is what you are doing and not rendering or something then you probably don't even really need a overclock.

no 5ghz fx will make you think you bought the wrong cpu.

 

[Ruyki]

You pass the freeze test as long as it doesn't freeze. The animation is not meant to be smooth.

 

[xfia]

@erocker didnt mean to steal the show from ya with something from toms. its just something that was actually done by Intel that they should include with z motherboards or something.
I like this forum better.. the staff seems pretty cool and discussions are more relaxed and not flame wars so I will try keep it going like that.

 

[gasolin]

I am not getting 80 degrees stock (i normally have vcore at 1.000 but tried 1.050 to se if the freeze test would be more stable)

 

[xfia]

if it was me i would not bother with the freeze test. testing is suppose to be done smoothly with mathematics on cpu's. Im sure some do it a little differently and of course it is different for gpu's but prime is reliable enough on its own.

lets say your running a game on 1 or 2 threads then the turbo will kick in for you and put those threads up to 4.4ghz if a game has a advanced newer engine that wants to spread it self out to like 6 or maybe even 8 threads and use hyperthreading then you will be at 4ghz but still great and even better than running on a few threads at 4.4ghz.

with your cpu I would suggest to put money into sli and a gsync monitor over any expensive cooling measures.

 

[gasolin]

Have 3 monitors (Dell U2414H ) and looking for a possible psu upgrade to 750watt, although it's not much from 660 watt, but the evga supernova g2 750 is much more quiet,silent then the 850watt version, also the price for the 750 watt is much better then the bigger version.

 

[xfia]

http://www.realhardtechx.com/index_archivos/Page362.htm probably going to need to go for the 850 but if you can hold out both camps got the new 20nm lithography coming soon. I think AMD sooner. if it is true what I have seen they are really pushing envelope.

 

[BiggieShady]

Why not leave turbo on, but make it turbo on all cores (no matter how many are under load). Keep it at stock first but undervolt it about 0.05 V using negative delta voltage adjustment. If it goes all right then increase only the turbo multiplier. It's nice to have undervolted overclock if silicon lottery allows.