Help me break 4GHz with my i7 920

[Shocky]

Currently at 4Ghz, (21x191) vcore is atat 1.312V and QPI/VTT at 1.450V, unsure how high I can really go with this, most other options are on auto.

Tried 200*20 but it's not stable, do I need to increase QPI/VTT? whats the max value I should be using for this?

Quick pic below to show settings and temps? can I go higher?


http://1682.mnetcs.com/thumb/thumb.gif (http://mnetcs.com/thumb/?reference=dock&imageid=1682)

System

i7 920 D0 (corsair H50 Cooler) P&P
Gigabyte EX58-UD5
Corsair XMS3 6GB 12800C9
Corsair XT 750W

[Camride]

I'm going to whore out another forum: http://forums.extremeoverclocking.com/showthread.php?t=324998

That's what helped me.

[Shocky]

According to that link 1.450V is to high for air cooling... mkay.. safe to go higher with this board?? :/

[donmarkoni]

Too low vCore, too high VTT, IMO.
Did you go step by step?
Drop CPU multi, drop MEM multi, raise BCLK adding VTT when becomes unstable. When hit the wall, or not confortable with raising VTT any more, then raise CPU multi one at a time and test. Raise vCore when becomes unstable... etc. Almost the same with MEM. When finished you'll find out that you probably need to raise VTT one notch for gaming/3D graphic stability.
Hope it helps.

[Shocky]

Too low vCore, too high VTT, IMO.
Did you go step by step?
Drop CPU multi, drop MEM multi, raise BCLK adding VTT when becomes unstable. When hit the wall, or not confortable with raising VTT any more, then raise CPU multi one at a time and test. Raise vCore when becomes unstable... etc. Almost the same with MEM. When finished you'll find out that you probably need to raise VTT one notch for gaming/3D graphic stability.
Hope it helps.

Not exactly, first of all I just increased vcore and blck and left everything on auto until I reached 4GHz, finally started messing round with VTT and set it manually then increased it slightly everytime it crashed and ended up at 1.455, which seems high but any lower and I start getting blue screens.

Even increasing to 195 causes crashes and disabling turbo and trying 200*20 bluescreens before windows even boots most of the time, odd how on auto I max out at exactly 4GHz? lol

[Shocky]

Anyone else with this board?

I've tried lower memory divider and multi, still at 191 the board is not stable without 1.450V and crashes at 195 or higher. It does seem to need more voltage for 200. :(

So anyone else got his board? is is undervolting? how much higher can I go? safe to push to 1.5V?

[Andrea deluxe]

Anyone else with this board?

I've tried lower memory divider and multi, still at 191 the board is not stable without 1.450V and crashes at 195 or higher. It does seem to need more voltage for 200. :(

So anyone else got his board? is is undervolting? how much higher can I go? safe to push to 1.5V?

i have ud5 and 920!
first: reset the bios
second: update the bios whit this:http://www.fileden.com/files/2008/7/28/2024082/ex58ud5.F9d.zip
reset another time the bios
and change only this setting:


MB Intelligent Tweaker(M.I.T.)

CPU Clock Ratio [20 X]

Advanced CPU Features : Intel(R) Turbo Boost Techn. [disable]

QPI Link Speed : x36

UnCore & QPI Features : Uncore Frequency [x16]

Base Clock(BCLK) Control [enable]

BCLK Frequency(Mhz) :200

System Memory Multiplier (SPD) : x8


DRAM Timing Selectable (SPD) [Quik]

>>>>> Timings
CAS 8
tRCD 8
tRP 8
tRAS 24
Command Rate(CMD) 1




Load-Line Calibration [Enable]
CPU Vcore 1.3150V
QPI/Vtt Voltage 1.34V
DRAM Voltage 1.64V


after please give me the temperature under load and chipset temperature!

[Shocky]

Where do I get chipset temp? in CPUID hardware monitor I have TMPIN0 , 1 and 2. Which is it?

Also, system would not boot with QPI/Vtt voltage of 1.35V, told me I was missing an operating system. lol

0 = 32C, 1 = 59C, 2 = 47C, CPU = 75C (highest)

[Andrea deluxe]

Where do I get chipset temp? in CPUID hardware monitor I have TMPIN0 , 1 and 2. Which is it?

Also, system would not boot with QPI/Vtt voltage of 1.35V, told me I was missing an operating system. lol

0 = 32C, 1 = 59C, 2 = 47C, CPU = 75C (highest)

install everest ultimate edition!

[Shocky]

install everest ultimate edition!

K, everest reads 48C from north bridge, which is TMPIN2 on hardware monitor.

Anyway, this bios seems a bit more stable at 200*20 but ultimately still fails, just takes a bit longer and still needs around 1.455V.

Also tried 195*20, actually seemed ok but when I enabled turbo for 4.1GHz got a few crashes ever after increasing vcore so not sure.

[Andrea deluxe]

K, everest reads 48C from north bridge, which is TMPIN2 on hardware monitor.

Anyway, this bios seems a bit more stable at 200*20 but ultimately still fails, just takes a bit longer and still needs around 1.455V.

Also tried 195*20, actually seemed ok but when I enabled turbo for 4.1GHz got a few crashes ever after increasing vcore so not sure.

ops!

i have fail!

set correctly the ram setings

8 8 8 24 2t

and try to push a little bit v-core and retry

[Shocky]

ops!

i have fail!

set correctly the ram setings

8 8 8 24 2t

and try to push a little bit v-core and retry

It's ok mate, I correctly set the memory timings, i'm not sure it can do 1t.

I'll give it a try, any idea what the other two temps are in cpuid's hardware monitor, if north bridge is TMPIN2 (matches everests north bridge temps), what are TMPIN0 and TMPIN1?

Nevermind I figured them out, there CPU and Motherboard. :)

[Andrea deluxe]

http://img7.imageshack.us/img7/2008/catturall.jpg (http://img7.imageshack.us/i/catturall.jpg/)