Help with i7 870 please

[brandonwh64]

You should start first by setting ram to lowest speed with timings 9,9,9,24 then CPU setting the multi to the max setting then upping bclk by 10 until you cannot boot any further then up the voltage 1 step.

 

[vychytraly]

but why lowest speed? Cant just 10 RAM multiplier do the thing? And the Uncore - shouldnt I care about it?

Thank your very much for your replies

 

[brandonwh64]

but why lowest speed? Cant just 10 RAM multiplier do the thing? And the Uncore - shouldnt I care about it?

Thank your very much for your replies

Do not worry about uncore, what is your current ram speed? 1600Mhz? See if it will drop down to 1066mhz or 1333mhz before you start OCing the CPU

 

[vychytraly]

you mean if the mobo allows me to set it to 1066 or 1333MHz?

 

[vychytraly]

now I run on BCLK 145, CPU multiplier 22, RAM multiplier 10 No other changes, Voltage not changed

Running nice

when I set BCLK to 160 and exited BIOS saving changes the PC turned off itself, probably that is it you called "when the pc wont boot raise Voltage"

So should I raise voltage by +25mV?

 

[JrRacinFan]

So should I raise voltage by 25mV?

Just crank it to +50 and go as far as you can. Once you find you cant boot any longer go down ~7mhz on bclk. FYI, set your ram to 1.6v, even if its overvolted some it will NOT hurt it at all.

Edit:
reg post 25

Don't worry about uncore. You aren't going to booting that high and also that's one of the things that differs from s1156/p55/h5x

 

[vychytraly]

hi hou

FSB 160, Multiplier 22, RAM Multiplier 10, CPU Voltage +25mV -> PC made a blue screen (first time on this PC! )

FSB 160, Multiplier 22, RAM Multiplier 10, CPU Voltage +50mV (Turbo boost off) -> Running now



So now what? Go more? Raise FSB? Wont it hurt Rams when will they run over 1600MHz?

And why should I Raise ram to 1.6V?

Can I Turn Turboboost on? (1 core turbo = 27 mutliplier = 4,4 GHz...?)

+50mV is a final frontier? Shouldnt I Raise CPU Voltages more?

And do you think that is this safe overclock for my PC? Wont the Mobo blow up?

BUT THANK YOU VERY VERY MUCH FOR YOUR HELP GUYS I REALLY APPRECIATE IT, WITHOUT YOU 2 THERE WOULD BE STILL 1 LAZY STOCK CLOCKED i7.

 

[brandonwh64]

hi hou

FSB 160, Multiplier 22, RAM Multiplier 10, CPU Voltage +25mV -> PC made a blue screen (first time on this PC! )

FSB 160, Multiplier 22, RAM Multiplier 10, CPU Voltage +50mV (Turbo boost off) -> Running now



So now what? Go more? Raise FSB? Wont it hurt Rams when will they run over 1600MHz?

And why should I Raise ram to 1.6V?

Can I Turn Turboboost on? (1 core turbo = 27 mutliplier = 4,4 GHz...?)

+50mV is a final frontier? Shouldnt I Raise CPU Voltages more?

And do you think that is this safe overclock for my PC? Wont the Mobo blow up?

BUT THANK YOU VERY VERY MUCH FOR YOUR HELP GUYS I REALLY APPRECIATE IT, WITHOUT YOU 2 THERE WOULD BE STILL 1 LAZY STOCK CLOCKED i7.

What you will have to do is raise ram voltage but DO NOT go over 1.65V\

Also test your stability with intelburntest or prime95 for atleast 20 passes

 

[vychytraly]

Ok I will raise them but please give me just a easy explanation why

I have OCCT, so I will run it with large data set for eg. 30 minutes?

 

[brandonwh64]

Ok I will raise them but please give me just a easy explanation why

I have OCCT, so I will run it with large data set for eg. 30 minutes?

If you start going over 1600mhz (or whatever rated speed is) then you will most likely need to increase ram voltage and loosen timings.

What is the model number for your ram?

 

[JrRacinFan]

If you start going over 1600mhz (or whatever rated speed is) then you will most likely need to increase ram voltage and loosen timings.

What is the model number for your ram?

To add: dram voltage can also help reduce IMC instability there as well. What's not helping is the fact you don't have tRFC timing adjustments.

 

[vychytraly]

I would tell you if Noctua NH-D14 werent as big as it is I will get one RAM out but I cant turn off the PC now, cause Intel Burn Test v2.54 is just doing its fourth pass. Gflops = 45 (I hope it is good ) Everest doesnt know the model number too. I was also looking for the Boxes of RAMs but I probably dont have them anymore.

 

[brandonwh64]

I would tell you if Noctua NH-D14 werent as big as it is I will get one RAM out but I cant turn off the PC now, cause Intel Burn Test v2.54 is just doing its fourth pass. Gflops = 45 (I hope it is good ) Everest doesnt know the model number too. I was also looking for the Boxes of RAMs but I probably dont have them anymore.

Use CPUZ

http://www.cpuid.com/softwares/cpu-z.html

 

[BarbaricSoul]

CPUz can tell you exactly what RAM you have on the SPD tab-

http://www.cpuid.com/softwares/cpu-z.html

DOH, I was ninja posted by Brandon while I was posting.

 

[vychytraly]

Oh I have CPU-Z but I didnt know its written there, thank you

KHX1600C9D3/4G Part

8A04B4F5 Serial

 

[JrRacinFan]

You have these:
Kingston HyperX 2GB 240-Pin DDR3 SDRAM DDR3 1600 (... Oops wrong ones Kingston HyperX 4GB 240-Pin DDR3 SDRAM DDR3 1600 D... but below still applies

Take a look at the rated voltage as that's what you are warrantied up to and don't go above 1.65v on your board In other words, you are ok to crank the voltage some.

 

[vychytraly]

But why if everything works right?

Maybe should I increase voltage only if im going to overlock more than 160 FSB?

But my RAMs are grey series, or is it the same?

But thank you very much for your help

 

[brandonwh64]

But why if everything works right?

Maybe should I increase voltage only if im going to overlock more than 160 FSB?

But my RAMs are grey series, or is it the same?

But thank you very much for your help

take a screenshot of CPUZ memory tab please

 

[JrRacinFan]

www.techpowerup.com/tpucapture

Nice little utility for screenshots.

 

[vychytraly]

 

[brandonwh64]

So this is what you have?

Kingston HyperX Grey Series 8GB (2 x 4GB) 240-Pin ...

 

[vychytraly]

Yes they look exactly this way, but there is a sticker on them, and there is written 1.5V, not 1.65V

 

[vychytraly]

So could I go further? Could I overclock until I reach +100mV limit? Just by pushing up the FSB? Or Am I now at the final frontier?

 

[vychytraly]

Do you think I could be able to hit 180 FSB with 22 multiplier?

And If I had 180 FSB which multiplier shoould I set for RAMs? 10 or 8? Could they run 1800MHz?

 

[JrRacinFan]

10 or 8? Could they run 1800MHz?

I doubt. Drop it to 8.