4770k overclock memory problem

[Azumashinobiryu]

Hello. I'm new to overclocking. I followed Prokon's guide but I don't understand how memory affects the overclock.

 

I ran ietu for 8 hours fine at 4.4ghz, cpu core voltage 1.25v, cpu input voltage 1.9v, and ram at default (1333mhz with wrong timings) with ram voltage 1.5v. So I decided to set my ram to its rated speed and timings (1866mhz 1.5v 9-10-9-28-2T) and it runs ietu stress test for a while (maybe an hour but I'm not sure) and then my system reboots.

 

What settings should I change to get stability? Does increasing the cpu core voltage work or should I change my ram frequency? Also does changing the ram frequency mean I have to change the timing from what its supposed to be rated at (9-10-9-28-2T)? I ask this because I read someone post that for my ram, without the proper settings, the system may be unstable and the ram can become corrupt over time so my ram should be configured correctly.

 

Thanks.

[Hirad123]

Just set your memory to the xmp profile and run a test again. If it still crashes then run your memory at 1600, if it still crashes then just leave it at 1333. Memory won't affect your gaming performance at all so it doesn't matter in the first place. And the reason that memory frequency affects your cpu overclock on haswell is because the memory controller on the haswell chips isn't the strongest so running at high memory frequencies can cause instability within your chip.

[Azumashinobiryu]

Just set your memory to the xmp profile and run a test again. If it still crashes then run your memory at 1600, if it still crashes then just leave it at 1333. Memory won't affect your gaming performance at all so it doesn't matter in the first place. And the reason that memory frequency affects your cpu overclock on haswell is because the memory controller on the haswell chips isn't the strongest so running at high memory frequencies can cause instability within your chip.

Thanks for the reply.

 

I actually had it on xmp and ran a second test which failed again. If I set it to 1600, do I need to change the timings or not and why? And I should still leave it in xmp right?

 

Thanks.

 

EDIT: Oh and one more thing. Does increasing the cpu core voltage and keeping the ram at 1866 work or does it not help at all?

[Hirad123]

Thanks for the reply.

 

I actually had it on xmp and ran a second test which failed again. If I set it to 1600, do I need to change the timings or not and why? And I should still leave it in xmp right?

 

Thanks.

 

EDIT: Oh and one more thing. Does increasing the cpu core voltage and keeping the ram at 1866 work or does it not help at all?

Increasing cpu voltage to help with memory frequency doesn't do anything. And no you don't leave it in xmp, just set the frequency to 1600. If that fails, just use 1333, you're not losing anything either way.

[Azumashinobiryu]

Increasing cpu voltage to help with memory frequency doesn't do anything. And no you don't leave it in xmp, just set the frequency to 1600. If that fails, just use 1333, you're not losing anything either way.

When I let the ietu test i was running go on at 1.26v to see if it would last 8 hours before I changed the ram frequency to 1600, surprisingly it remained stable for the whole 8 hours at 1.26v 1866mhz frequency. Then I ran memtest and it passed 2 passes with no errors.

[Hirad123]

When I let the ietu test i was running go on at 1.26v to see if it would last 8 hours before I changed the ram frequency to 1600, surprisingly it remained stable for the whole 8 hours at 1.26v 1866mhz frequency. Then I ran memtest and it passed 2 passes with no errors.

Grats!