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**Lsdmeasap** · 12-03-2009, 04:00 AM

Re: EX58-UD5 and OCZ Platinum 1333 Bios setting advice

Hey, 1.66 Vdimm is what you need. 1.64 is less than that actually anyway due to the drop and less that that sometimes under load as well. So set 1.66 now and accept that as normal 1.65 :)

RAID, hmm do you need help with that now or settings first? I assume you would need to reinstall anyway to mess with that right?

Try these settings and see how you get along

Advanced CPU Features:
CPU Clock Ratio ................................ [20x]
Intel(R) Turbo Boost Tech .................. [Enabled]
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 ................... [Enabled]
Bi-Directional PROCHOT ..................... [Enabled]

Uncore & QPI Features:
QPI Link Speed .............................. [Auto] @ 4.8Ghz << Can use x36 or X44 both would be fine
Uncore Frequency .......................... [x20] (2667Mhz) << try out x21 or x22 (I find 2x +2 to work best in many situations)
Isonchronous Frequency ..................[Enabled]

Standard Clock Control:
Base Clock (BCLK) Control ................ [Disabled]
BCLK Frequency (MHz) .....................133
PCI Express Frequency (MHz) ........... [Auto]

C.I.A.2 [Disabled]

Advanced Clock Control:
CPU Clock Drive ..............................[800mV]
PCI Express Clock Drive ................... [900mV]
CPU Clock Skew ............................. [0ps]
IOH Clock Skew ............................. [0ps]

Advanced DRAM Features:
Performance Enhance ...................... [Standard]
(Ram is not XMP, option doesnt enumerate) << Good, disabled anyway if you had it :)
System Memory Multiplier (SPD) ........ [10.00] (@ 1333Mhz)
DRAM Timing Selectable (SPD) .......... [Expert]

##Channel A Advanced Timing Control##
tRC .......................................27 (Auto)
tRRD .......................................4 (Auto)
tWTR ......................................4 (Auto)
tWR ........................................8 (Auto)
tWTP .....................................19 (Auto)
tWL ........................................7 (Auto)
tRFC ......................................60 (Auto) << Set 84 for now
tRTP .......................................4 (Auto)
tFAW ......................................20 (Auto)
Command Rate (CMD) ................ 1 (Manual)

##Channel A Misc Timing Control##
Round Trip Latency ...................49 (Auto)

Advanced Voltage Control:

CPU
Load Line Calibration ................. [Disabled]
CPU Vcore ...............................1.26875V (Auto) (Mine is a C0 revision 920)
QPI/VTT Voltage 1.150v ............1.175V (Auto) << here is likely the issue, you must find and set your own QPI/Vtt per what your CPU likes. Yes, what your CPU likes :) Try 1.25-1.35 for now, should be plenty with 1333Mhz speeds
CPU PLL 1.800v .......................1.800V (Auto)

MCH/ICH
PCIE 1.500v ...........................1.500V (auto)
QPI PLL 1.100v .......................1.100V (auto) << Set 1.2
IOH Core 1.100v .....................1.100V (auto) << Set 1.18-1.24
ICH I/O 1.500v .......................1.500V (auto)
ICH Core 1.1v ........................1.100V (auto) << Set 1.14-1.2 (large GFX Card and several drives)

DRAM
DRAM Voltage 1.500v ..............1.580V (Manual) (note: its the only stable value) Set 1.66 (Norm for 1.65 DDR3 memory) Just set for now, to be sure this is not part of the issue, of course this could run lower than spec of 1.65 but test that later on.
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]

**qwertylesh** · 12-03-2009, 04:25 AM

Re: EX58-UD5 and OCZ Platinum 1333 Bios setting advice

Thanks a billion LSD :)

Ive set that all now, its still running stable (no bsods) which is a good sign.

with the variance of the manual voltages you recommend, ive just done one to two increments inside your suggested voltage rages for all of the settings, two increments for the parts like ICH core where i feel the little extra is needed.

one thing i noticed your template recommends the tWL to be -1 of the Cas latency of the Ram, well mine on auto is at 7 where as my CL is also 7, should i change my tWL to 6 in my bios, will it help?

**Lsdmeasap** · 12-03-2009, 04:39 AM

Re: EX58-UD5 and OCZ Platinum 1333 Bios setting advice

Great to hear! Sorry about the voltage jump off comments, it just seemed like you maybe were scared so just wanted to try and let you know things were normal in regards to voltages like that.

Keep on tweaking and testing, I am sure you will need to do a little of each before you are full stable.

Auto, or the value that appears to be Auto on the left of the BIOS can be ignored. That is often incorrect and not used, it can be used sometime in the past, or in the BIOS but not often in windows.

The setting you are asking about in particular will be set at the proper amount, and should fail I believe if it was above that. I know for sure it would fail to boot if it was under the correct amount.

I suggest you leave all the advanced memory timings on auto, until you are sure you are fully stable. Then save that as a profile, then you can tweak them all you want. Just saying, get stable first, then play

**qwertylesh** · 12-03-2009, 04:52 AM

Re: EX58-UD5 and OCZ Platinum 1333 Bios setting advice

mate, youve solved the memory addressing crash with superpi

I will refer back to this thread and adjust voltages accordingly if i run into any more instability.

thanks heaps LSD :D

**Lsdmeasap** · 12-03-2009, 04:55 AM

Re: EX58-UD5 and OCZ Platinum 1333 Bios setting advice

Great to hear! I bet it was IOH and QPI/Vtt, now you can try lower if you like, starting with IOH.

Post back anytime man!

In the meantime enjoy your PI capable system

**qwertylesh** · 12-03-2009, 06:30 AM

Re: EX58-UD5 and OCZ Platinum 1333 Bios setting advice

the current setting caused my os shell (explorer.exe) to get the same memory access problem while gaming (exception code 0x0000005)
so it may not be perfect yet but im certainly on the right path.

im tempted to try out the raiding again actually, but its alot of hassle for minimal gain, so ill probably give that a miss. :)

**Lsdmeasap** · 12-03-2009, 11:56 AM

Re: EX58-UD5 and OCZ Platinum 1333 Bios setting advice

sounds like ya just need some tweaking still is all, keep at it!

You should be ok to RAID, or wait till you have more time to spare.

**qwertylesh** · 10-10-2010, 10:05 PM

Re: EX58-UD5 and OCZ Platinum 1333 Bios setting advice

BUMP! :D

Just want to say, my Rig has been awesome ever since I had you guys help me with the advanced ram timing configuration. It really was the tRFC being too tight causing all my hassle.

I actually even since then added a 5870 and an SSD, which required small alterations to some of the tweaking (mainly voltage)

ty again lsdmeasap ^_^

**Lsdmeasap** · 10-12-2010, 03:32 AM

Re: EX58-UD5 and OCZ Platinum 1333 Bios setting advice

Great to hear everything has been running smoothly for you!!

Congrats on the upgrades as well!

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EX58-UD5 and OCZ Platinum 1333 Bios setting advice

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