4820K OC help

[M11C]

Hello, first thread here (didn't have much luck on overclock.net)

so i need some help overclocking my i7 4820K.
it's an Ivy-E CPU with a 2011 socket, meaning it only works with the X79 chipset. it runs at 3.7GHz stock, 3.9 Boost.

Specs:
Mobo: R4BE
RAM: 4x 8GB G.Skill RipjawZ 2400MHz CL10
PSU: AX1200i
Cooling: EKFB R4BE monoblock

it runs completely stable at 4.5GHz at 1.2Vcore and LLC at high, as far as i can tell.

4.8GHz won't boot at 1.3Vcore, but i can get into windows at 1.35Vcore with CLL at Ultra, but Intel Burn Test fails after 2-3 passes.

i think i need to change some other voltages like VCCSA, VTT, PLL etc. but i have little idea what these voltages will do.

also, i'm not sure what RAM settings i need; i've just been running them at ~1000MHz when OC'ing.

is it safe to change CPU strap/ will it help get a stable OC?

will it help using quad channel memory, over dual channel?

is it recommended to use XMP?

i'm hoping to be able to do some benchmarks at 5.0GHz, but getting 4.8 stable is fine for now.

Btw. at 4.5GHz temp is at ~50C during stress testing.

- Thanks

[Nate152]

It might be best to reset to defaults, run it for a bit and see if you still get crashes. It's probably instability somewhere with your ram, cpu or gpu.

You have plenty of power so I don't think it's your psu, do you have the 4 pin cpu power cable connected? It's not mandatory but when overclocking extreme you want to have it connected.

You could reset the bios to defaults and enable xmp and run it like that for a while to see if it's a ram issue, if it seems ok then your cpu or gpu overclock is unstable.

[M11C]

Nate152 wrote:
It might be best to reset to defaults, run it for a bit and see if you still get crashes. It's probably instability somewhere with your ram, cpu or gpu.

You have plenty of power so I don't think it's your psu, do you have the 4 pin cpu power cable connected? It's not mandatory but when overclocking extreme you want to have it connected.

You could reset the bios to defaults and enable xmp and run it like that for a while to see if it's a ram issue, if it seems ok then your cpu or gpu overclock is unstable.

GPU runs at stock normally, RAM at rated specs.
i run my CPU at 4.1GHZ for 24/7,and it has passed 12hourson prime95...
and i have run Memtest86 at 4.5GHZ without any errors.

yeah, shouldn't be my PSU. that thing is Platinum and got all the protection features you can imagine.
I run with 8+4 pin 24/7

I think i reset my bios when i created the current profile...

[M11C]

GPU runs at stock normally, RAM at rated specs.
i run my CPU at 4.1GHZ for 24/7,and it has passed 12hourson prime95...

yeah, shouldn't be my PSU. that thing is Platinum and got all the protection features you can imagine.

I run with 8+4 pin 24/7 😛

I think i reset my bios when i created the current profile... and i have run Memtest86 at 4.5GHZ without any errors.

i fear i damaged something when i fitted the waterblock on my GPU, and that's the reason...

[M11C]

anybody knows how to get offset to work with 125 strap?

and anyone running OS on samsung SM951?

[M11C]

going to be installing windows on the new Samsung SM951 this weekend, and running some benches.

fingers crossed it'll work.

also need to take apart the loop, but waiting until next month for that.

Edit;

[M11C]

going to be installing windows on the new Samsung SM951 this weekend, and running some benches.

fingers crossed it'll work.

also need to take apart the loop, but waiting until next month for that.

Edit;

[M11C]

Just been messing with some cable modding, here's the result:


one of the red wires is silecone 18 awg with pet sleeving.

the other two red sleeved wires are 16 awg silver plated copper wire with clear teflon insulation, and can be seen on the clear plug.

the black wire is 14 awg, but was too big for the crimps.

i'm waiting for some paracord sleeving to try out.

I've also been working on some M.2 stuff, but i'm still waiting for the heatsink and thermal pads.

[M11C]

So I'm doing a major overhaul on my watercooled system this Christmas, and I'll be posting my work here.

Update coming soon;

[Nate152]

Hey M11C

Looking forward to it, please show us some before and after pics please. 🙂

[M11C]

It's alive! It's alive!
and on that note i resurrected this thread 😛
*don't kill me admin/mods*

Just wanna start, where i left off;
So i never got finished with the M.2 adapter heatsink, though i really just need some screws, but i've been too laze to order, lol maybe i will next month.

But i've made the sickest custom made power cables in my build, and it looks swag. will post pics tomorrow, as it's 2 am 😛
not sure what my build looked like when i last was here, but again i'll post pics tomorrow.

Uh, and if you happen to have a motherboard with a X79 socket, then you might wanna try to search for Intel QEEY. don't drool into your keyboard 😉

Also, if someone has experience with setting RAM timings on this board, I'd just love to hear about it 🙂