980x stuck at 4800mhz, Help please!

[orson]

Hey all.

I am having a lot of trouble getting my 980x over 4800, as soon as I go even 20 mhz over programs start to crash and I can't
get any stability tests to continually run.

I've tried boosting voltages, using Multi and Bclk to overclock, playing with the clock skew, adjusting memory freq and timings and pretty much
everything I can think of to get it stable over 4800.

I have a chiller system hooked up which keeps my water temp at 11c, which gives my cores @ 4800 with 1.59v @ around 21c on idle jumping up to around 57c on full load.
So I am pretty sure it's not a cooling issue. Any help would be most appreciated as I am at my wits end ><

Thanks in advance

System spec is
ud9 with f5I bios, tried with F5H and F4.
980x
3 x GTX480 @ 900mhz core
12gb corsair dominator gt 3x4gb kit CMT12GX3M3A2000C9
1x silverstone decathlon powering gpu's
1x enermax revolution powering mobo, hard drive and 2 water pumps.


CPU Clock Ratio ................................:[36x]
Intel(R) Turbo Boost Tech ......................:[Disabled]
CPU Cores Enabled ..............................:[All]
CPU Multi Threading ............................:[Enabled]
CPU Enhanced Halt (C1E) ........................:[Disabled]
C3/C6/C7 State Support .........................:[Disabled]
CPU Thermal Monitor ............................:[Disabled]
CPU EIST Function ..............................:[Disabled]
Virtualization Technology ......................:[Disabled]
Bi-Directional PROCHOT .........................:[Disabled]
Isochronouss Support............................:[Disabled]

Uncore & QPI Features:
QPI Link Speed .................................:[6.4ghz]
Uncore Frequency ...............................:[2667mhz]

Standard Clock Control:
Base Clock (BCLK) Control ......................:[Enabled]
BCLK Frequency (MHz) ...........................:[133]
PCI Express Frequency (MHz) ....................:[100]
Dram Frequency .................................:[1600mhz]

Advanced Clock Control:
CPU Clock Drive ................................:[800mV]
PCI Express Clock Drive ........................:[700mV]
CPU Clock Skew .................................:[0ps]
IOH Clock Skew .................................:[0ps]

Advanced DRAM Features:
Performance Enhance ............................:[Standard]
Extreme Memory Profile (X.M.P) .................:[Disabled]
System Memory Multiplier (SPD) .................:[12.0]
DRAM Timing Selectable (SPD) ...................:[Quick] (Auto,Quick,and Expert)

Channel A + B + C

Channel A Timing Settings:
##Channel A Standard Timing Control##
CAS Latency Time ..............................9:[9]
tRCD ..........................................10:[10]
tRP ...........................................9:[9]
tRAS .........................................27:[27]

##Channel A Advanced Timing Control##
tRC ..........................................27:[Auto]
tRRD ..........................................4:[Auto]
tWTR ..........................................4:[Auto]
tWR ..........................................8:[Auto]
tWTP .........................................19:[Auto]
tWL ...........................................7:[Auto]
tRFC ........................................86:[Auto]
tRTP ..........................................4:[Auto]
tFAW .........................................20:[Auto]
Command Rate (CMD) ............................2:[2]

##Channel A Misc Timing Control##
Round Trip Latency .............................50:[Auto]

B2B CAS Delay ..................................:[Auto]

Advanced Voltage Control:

CPU
Load Line Calibration ..........................:[Level2]
CPU Vcore ......................................:[1.58375v]
QPI/VTT Voltage 1.150v .........................:[1.54v]
CPU PLL 1.800v .................................:[1.96v]

MCH/ICH
PCIE 1.500v ....................................:[1.540v]
QPI PLL 1.100v .................................:[1.200v]
IOH Core 1.100v ................................:[1.200v]
ICH I/O 1.500v .................................:[1.580v]
ICH Core 1.1v ..................................:[1.200v]

DRAM
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]

[Leeghoofd]

CPU
Load Line Calibration ..........................:[Level2]
CPU Vcore ......................................:[1.58375v]
QPI/VTT Voltage 1.150v .........................:[1.54v]
CPU PLL 1.800v .................................:[1.96v](

The above are so horribly wrong... no idea why you push 1.54VTT for 1600Mhz ram speeds and such low uncore... Vcore is out of whack too, prolly coz VTT is too high and same accounts for your CPU PLL voltage too. Or you just have got a very weak IMC on your CPU...

Try QPI voltage at 1.4 and CPU PLL at 1.65...

Good idea too is to try first with 1 GPU and maybe 6Gb of ram... How hot is the IOH ? Did you hook it up to the loop ? or did you install the big heatpipe ?

[orson]

CPU
Load Line Calibration ..........................:[Level2]
CPU Vcore ......................................:[1.58375v]
QPI/VTT Voltage 1.150v .........................:[1.54v]
CPU PLL 1.800v .................................:[1.96v](

The above are so horribly wrong... no idea why you push 1.54VTT for 1600Mhz ram speeds and such low uncore... Vcore is out of whack too, prolly coz VTT is too high and same accounts for your CPU PLL voltage too. Or you just have got a very weak IMC on your CPU...

Try QPI voltage at 1.4 and CPU PLL at 1.65...

Good idea too is to try first with 1 GPU and maybe 6Gb of ram... How hot is the IOH ? Did you hook it up to the loop ? or did you install the big heatpipe ?

CPU PLL at 1.65 ? Isn't stock like 1.8 ?

It's a 3x4gb ram kit so it only occupies 3 slots.

Yes the boar has an ek waterblock on it for cooling, sorry should of mentioned that.

[Leeghoofd]

Well mate, for 24/7 stability I'm settling at 4.6 here with the 990X, it does that at 1.45Vcore... 4.8 requires 1.55Vcore... It's benchstable on water at 5Ghz, Wprime 1024, at 1.53Vcore and hopefully a lot more on the Cascade...

Sometimes a CPU surpasses it's sweetspot and you need massive volts to stabilise it. Is that worth the extra Vcore for a mere 100Mhz more ? Looking at your Vcore requirements for just 4.8Ghz you got what we refer to as a dud... a good CPU does eg 4.8 at 1.55, a golden one does 4.8 at 1.45 and a dud might never ever even reach 4.8Ghz... on water...

I would still try to lower PLL and QPI Voltages, but surpassing 4.8Ghz might be overdoing the capabilities of your CPU and cooling...

[mk-ultra]

you just need more cold not more volts....

it's a 980x not a 2600k

[orson]

Well mate, for 24/7 stability I'm settling at 4.6 here with the 990X, it does that at 1.45Vcore... 4.8 requires 1.55Vcore... It's benchstable on water at 5Ghz, Wprime 1024, at 1.53Vcore and hopefully a lot more on the Cascade...

Sometimes a CPU surpasses it's sweetspot and you need massive volts to stabilise it. Is that worth the extra Vcore for a mere 100Mhz more ? Looking at your Vcore requirements for just 4.8Ghz you got what we refer to as a dud... a good CPU does eg 4.8 at 1.55, a golden one does 4.8 at 1.45 and a dud might never ever even reach 4.8Ghz... on water...

I would still try to lower PLL and QPI Voltages, but surpassing 4.8Ghz might be overdoing the capabilities of your CPU and cooling...

Hmm I would of thought with the water chiller on there my cooling should be adequate to handle high overclocks.

I guess it might just be a dud CPU :/

[Falkentyne]

It's a 980X. Some people had problems getting them at 4.5 ghz.

TBH, what vcore did you need to run 4.5 ghz? If you could run at less than 1.4v at 4.5 ghz, that was considered good for a 980X.