Core i7/X58 Overclocking Thread

[rubber5]

hi everyone im really getting annoyed i have my i7 920@4.0ghz and if i run intel burn test on standard it will pass 20 times no problem but if i set it to maximum it normaly fails on the second pass and i get a +xxx number at the end of the result
what im i doing wrong is there any way i can get this stable

quick settings
clock ration x20
qpi link auto
bclk 200
performance enhance standard
memory multy 8.0 (1600mhz)
d-ram timing
cas 9
trcd 9
tdp 9
tras 28
command rate 1

load line calibration disabled
cpu v core 1.35v
qpi/vtt1.295v
iho core 1.26v
d-ram 1.640v

i have a enermax galaxy 1000watt psu
asus gtx 280
ocz reaper 15000 memory 1866mhz @1600mhz

i really dont know what to do can anyone plese help me

[zalbard]

Use 21 multi (turbo always on).
You may need more VTT (up to 1.35).
Set DRAM to 1.66V.
If you have a c0, you may need even higher vCore and VTT.

[rubber5]

Use 21 multi (turbo always on).
You may need more VTT (up to 1.35).
Set DRAM to 1.66V.
If you have a c0, you may need even higher vCore and VTT.

if i go 2 noches higher in the vtt its telling me im overvolting and i dont know if that safe
plus my cpu is a d0 but do i turn down my bclk to make it up to 4ghz with the boost on
and will i need to up the volts on the memory since im not running it at 1866mhz becuse its only @1600mhz with default clocks

thanks for your help
ps i have found a thread just for the gigabite ex58 ud5 im hoping to get some help there as well thanks again

[vaio]

Yay.....my first 4 ghz rig

http://valid.canardpc.com/show_oc.php?id=860863

[angkies]

this is my setting for daily used


DFI UT X58 T3eH8 | 06/19 bios
i7 920 D0 3910A880
Gskill Trident 16000 CL9 6GB
EnerMax Revo 1050w
ASUS HD5850
Gskill MLC SSD 64GB
Enzotech Luna, RX360, Swiftech MCP355 w/ XSPC top

[vaio]

100% load 24/7 or a part timer?

Nice

[dan7777]

this is my setting for daily used


DFI UT X58 T3eH8 | 06/19 bios
i7 920 D0 3910A880
Gskill Trident 16000 CL9 6GB
EnerMax Revo 1050w
ASUS HD5850
Gskill MLC SSD 64GB
Enzotech Luna, RX360, Swiftech MCP355 w/ XSPC top

just noticed that your intel burn test thread is on 8 shouldnt it be on 16 threads ?

[AriciU]

Lynx stable 20 passes @ 4410 Mhz

CPU Vcore: 1.412v bios - 1.36v load
QPI/VTT: 1.355v
DRAM: 1.66v
QPI PLL: 1.3v

[AriciU]

Max SPI 1m @ 4725Mhz / 1.39v / 21x225

[angkies]

just noticed that your intel burn test thread is on 8 shouldnt it be on 16 threads ?

Core i7 only have 8threads not 16

[Chicken Patty]

Core i7 only have 8threads not 16

Dan777 brought that up before to me and I believe if I recall correctly it fully stresses it when on 16. Try it, you will most likely see a higher increase in temps. Why? Beats me, but give it a shot.

[vaio]

Impressed with my new toy.........only been a fortnight or so and she is in the Poem top 20 for RAC

Nice to see it beating out the rich folks 940's and 965's

[rubber5]

hi everyone i wanted to ask if anyone else is having the same problem is i am
i have my i7920@3.7ghz and i have used prime for 12hours (small fft's) and no probs even gaming for hours but now and again when i go to boot up the pc it resets the bios and tells me there is an overclock problem

if i go into the bios and then save and exit it then boots no problem again
what the hell is wrong i really dont understand it
is there something im doing wrong

my specks are

i was also 4.0ghz stable with thease settings i just changed the base clock
gigabite EX58 UD5 mobo
core i7 920 @3.7 1.35volts bios
qpi/vtt 1.295volts
ioh core 1.260volts
ocz reaper hpc 15000 6gb kit (1866)mhz 9.9.9.28 1.64volts
asus gtx280 (no overclocking)
enermax dxx 1000watt psu

any help plese
thanks

[Salamndar]

Ok here is the maximum I could get from my D0 and the R2E, not as good as I hopped for...



If I raise Bclk to 211 or 212 the PC would fail linx randomly even when I boost CPU voltage to 1.48 which I don't really like, If I raise the Bclk any more the PC would fail to POST!!!

Not sure what's lagging me behind, is it the mobo or the CPU ?!?
I can't tell untill I optain another CPU.

[Chicken Patty]

@ salamndar

Follow this guide to see if it's CPU or board. It explains how to find max BCLK and how to max out each component. This way you'll be able to tell what is holding you back.


http://www.evga.com/forums/tm.aspx?m=5266

[imo]

Xeon W3520

[imo]

Max I could overclock 4720MHz @ 1.46v (225 BCLK x 21) on Air 32M PI Calculation

[Salamndar]

@ salamndar

Follow this guide to see if it's CPU or board. It explains how to find max BCLK and how to max out each component. This way you'll be able to tell what is holding you back.


http://www.evga.com/forums/tm.aspx?m=5266

That's what I always do, I think I have an annoying R2E after all.

[Chicken Patty]

That's what I always do, I think I have an annoying R2E after all.

So you tried that and no luck? What's the max BCLK you can get out of it?

[Boyu]

@Salamndar : my friend use R2E and he can do 225 bclk, he is using the same batch as mine and we got almost identical max bclk, i'm using classified btw.
i think it's your CPU, do you allready try another cpu?

[Sam_oslo]

My latest on my new MB, GA-X58A-UD7
8 hours Prime small-fft. My new low-volt 24/7 setup.

@4.22GHZ (222x19) 1.200v , Primestable

[Salamndar]

So you tried that and no luck? What's the max BCLK you can get out of it?

Max I got was 210 only !

[Salamndar]

@Salamndar : my friend use R2E and he can do 225 bclk, he is using the same batch as mine and we got almost identical max bclk, i'm using classified btw.
i think it's your CPU, do you allready try another cpu?

I currently have no other CPU, I tried to lower the multi. to 13x and raised the bclk to 210, any thing higher would not get the PC stable at all, and when I reach 214B clk the PC won't POST.

[ChaosAD]

Does the default/stock i7 cpu voltage indicate the overclockability of the cpu?

[phsinc1]

Does the default/stock i7 cpu voltage indicate the overclockability of the cpu?

well, it doesn't always indicate the overclockability but it lower vid chips have higher chance to overclock better with lower vcore, but I have seen high vid chips overclocks really good too.

it is impossible to get a low i7 920 vid now with the 39xx batches, most vid for this batches varies between 1.2500 ~ 1.3000v, whith the older 38 batches some batches had 1.17500v ~ 1.200v vid.

You have to test your own chip to know if it overclocks good or no