Overclocking the i7 920

[xJonnehx]

Hi all,

I’m having some trouble getting a stable OC on my i7 920. I had to change motherboard after a fault and I’m now using a gigabyte x58A-UD3R. The CPU is a C0/C1. Memory is a set of Tripple Channel Kingston HyperX 6 GB (3 x 2 GB) 2000 MHz (PC3-16000).

GFX is a gtx 295 (BFG) and 1k watt power supply. Windows 7 Ultimate.

Now, I used to have a stable clock for 4ghz on my old asus board. Exactly the same hardware, except the mobo. The memory would even run at close to 1600. Since the change though, I have been unable to find a good set of voltage settings which produce completely stable results. Cooling is not an issue, I have a really nice cooler (Zalman CNPS10X Extreme CPU Cooler). The memory even came with its own clip on fan. I just can’t seem to hit the right settings without getting loads of 124 blue-screens while load testing/gaming.

I have to say, the XMPs for this memory have never worked well for me on either motherboard, but it always runs at low timings.. the most fiddly part is usually getting it to boot at higher speeds.

Could anyone help me with some pointers or perhaps just a copy of settings from their own Gigabyte X58A-UD3R? I have tried Google-guides and I just don’t seem to be getting anywhere.

Thanks for reading!

 

[{SAS}TB]

I have the UD5, but these may help ?

CPU Clock Ratio [20x]

Advanced CPU Features
Intel(R) Turbo Boost Tech [Enabled]
CPU Cores Enabled [All]
CPU Multi Threading [Enabled]
CPU Enhanced Halt (C1E) [Enabled]
C3/C6/C7 State Support [Enabled]
CPU Thermal Monitor [Enabled]
CPU EIST Function [Enabled]
Virtualization Technology [Enabled]
Bi-Directional PROCHOT [Enabled]

QPI Clock Ratio [x36]

UnCore & QPI Features
QPI Clock Ration [x36]
Uncore Clock Ratio [x16]
Isonchronous Support [Enabled]

Base Clock Control [Enabled]
BCLK Frequency (Mhz) [200]

Advanced Clock Control
Base Clock (BCLK) Control [Enabled]
BCLK Frequency (Mhz) [200]
PCI Express Frequency (MHz) [101]
C.I.A.2 [Disabled]

CPU Clock Drive [ 700mV]
PCI Express Clock Drive [700mV]
CPU Clock Skew [ 0ps]
IOH Clock Skew [ 0ps]

Performance Enhance [Turbo]
Extreme Memory Profile (X.M.P.) [Disabled]
System Memory Multiplier (SPD) [Auto]
Memory Frequency (Mhz) 1066 1600
DRAM Timing Selectable (SPD) [Quick]
Profile DDR Voltage 1.5v
Profile QPIVoltgae 1.175v

CAS Latency Time 7 [8]
tRCD 7 [8]
tRP 7 [8]
tRAS 20 [24]
CMD 1 [Auto]

Advanced DRAM Features:
Performance Enhance [Turbo]
Extreme Memory Profile (X.M.P.) [Disabled]
System Memory Multiplier (SPD) [Auto]
Memory Frequency (Mhz) 1066 1600
DRAM Timing Selectable (SPD) [Quick]
Profile DDR Voltage 1.5v
Profile QPIVoltgae 1.175v
Channel Interleaving 6 [Auto]
Rank Interleaving 4 [Auto]

Load Line Calibration [Enabled]
CPU Vcore 1.28750V [Normal]
QPI/Vtt Voltage 1.175V [Auto]
IOH Core 1.100V [Auto]
DRAM Voltage 1.500V [1.66V]

Advanced Voltage Control
Load Line Calibration [Enabled]
CPU Vcore 1.28750V [Normal]
Dynamic Vcore (DVID) +0.00000V [+0.14375V]
QPI/Vtt Voltage 1.175 [Auto]
CPU PLL 1.800v [Auto]

PCIE 1.500v [Auto]
QPI PLL 1.100v [Auto]
IOH Core 1.100v [Auto]
ICH I/O 1.500v [Auto]
ICH Core 1.100v [Auto]

DRAM Voltage 1.500v [1.660V]
DRAM Termination 0.750v [AUTO]
Ch-A Data VRef. 0.750v [AUTO]
Ch-B Data VRef. 0.750v [AUTO]
Ch-C Data VRef. 0.750v [AUTO]
Ch-A Address VRef. 0.750v [AUTO]
Ch-B Address VRef. 0.750v [AUTO]
Ch-C Address VRef. 0.750v [AUTO]

 

[xJonnehx]

Thanks fella.

Got it to boot at 4Ghz but the memory just wont clock up over 1100~. Kinda stupid really, since it was quite happily running at 1600 or even 1800 on some clocks I've done before, and its stock rated for 2000 :/ Wont even clock up without a BCLK increase, so just ramping the multiplier. Surely a problem with the RAM I'm guessing :/

Better invest in some new ram if so!

 

[Ixon]

Have you set your memory voltage to either 1.64v or 1.66v with 8x multi, also when you check the bios make sure uncore set to 16x as gigabyte has an habit of setting it to 17x which in turn can make it unstable without massive amount of QPI/VTT volts.

 

[xJonnehx]

Have you set your memory voltage to either 1.64v or 1.66v with 8x multi, also when you check the bios make sure uncore set to 16x as gigabyte has an habit of setting it to 17x which in turn can make it unstable without massive amount of QPI/VTT volts.

1.66v yes and 8x multi wont boot. I believe the uncore is 16x as specified in the settings of our friend above.

Just wont boot under those settings, even with everything underclocked and just the memory clocked up to 1600~ish. The mem used to run at that, so I can only assume there is something wrong with it now.

 

[BigBruiserAl]

124 BSOD is qpi/dram vcore. Maybe se them on auto and allow the board to overvolt while you trouble shooting if it works you can then find stable volts.

Can try 1.66 on the ram and QPI 1.4 just to see if boots

 

[xJonnehx]

Can try 1.66 on the ram and QPI 1.4 just to see if boots

Hmm, it actually did this time with 1.4ish qpi. The thing now is that it gets to the 'flying' windows loading screen and hangs with a 0x0000009C blue screen if the BCLK is over 185ish.

However I am now running at 3.8ghz and 1450~ ish ram speed. Which is better than before.

Now to see about this new blue screen and if there is a way around it. As stated above, I did used to run this cpu at 191 BCLK (x21) so 1580ish ram speed.

Thanks though - progress!

 

[BigBruiserAl]

hmm i think 0x0000009C is a harware error (god im sad).....maybe try with 1 stick of ram see how go if it still fails change it for another stick but still only one?