superPI crash on 32M calc

[qwertylesh]

as the title states, my system can't seem to get through a pi 32m fully and its really bothering me.
Specs in sig.
I can blend test it for as long as i like without trouble but for some reason superpi will just stop responding about 10 - 15 minutes into a 32M calculation.

My ram is force cooled and has no addressing errors, ive shown my bios config on the forums in a few areas and initially put it down to having Vista 64bit, but I dont think thats the issue now.

Is there something I should raise which can help, I know my systems stable, but without superPI working properly It leaves me thinking I can get better stability out of it.

My bios:

CPU Clock ratio = 20
Advanced CPU Features:
CPU Clock ratio = 20
Turbo = Disabled
Cores Enabled = All
Multi-Threading = Enabled
Advanced halt [C1E] = Disabled 
C3/C6/C7: Disabled 
Thermal monitor = Disabled
CPU EIST Function = Disabled
Virtualisation = Enabled
BI-Directional PROCHOT = Enabled
QPI Link Speed = Auto
UnCore/QPI Features:
QPI Link Speed = Auto
UnCore Frequency = 20
Isochronous Support = Enabled
Base Clock Frequency (BCLK) Control = Enabled
Frequency = 133

Peformance enhance = Standard 
System Memory Multiplier = 10

DRAM Timing Selectable (SPD)
CAS = 7
TRCD = 7
TRP = 7
TRAS = 20
Command rate CMD = 1

Dram voltage at 1.58 
All other volts set to [Normal]

[Lsdmeasap]

Re: superPI crash on 32M calc

Please give us your settings so we can see what you are using, link in my signature for template

[Ickk]

Re: superPI crash on 32M calc

I was having the same problems when i went from 3gb to 6 ,gb prime95 would error with the 6gb sticks ... i eventually got it to complete by upping QPI\VTT to 1.24v and Dramm to 1.64v -1.66v.

[Lsdmeasap]

Re: superPI crash on 32M calc

Please do not use Normal, use Auto or set your own amount.

You may need 1.3-1.4+ QPI/Vtt, and 1.64-1.66 Vdimm as stated above, depending on your uncore clocks and ram timings which look like you may need them set in those ranges. I also advise you set IOH to 1.18-1.24

Just so you know, CPU multi of x20 can be unstable for some CPU's, so you may need to use 19 or 21

[qwertylesh]

Re: superPI crash on 32M calc

1.58 is definitely the right ram voltage for this ram kit at PC3-10666, I'm absolutely certain it doesn't need more or less then that (either direction = bsod's).

Any particular reason Normal is no good? I figured this would lock it to the most default/stock voltages, being better for longevity? :\

I will find out the stock VTT value and raise it by .01 a few times and see if it will PI successfully after that.

Will do the same for the IOH when Im home tonight, and see if it helps. :)

thanks guys.


edit: why would the stock 20x be unstable, that can't be right, I dont want to OC or UC this I just want it the most stable all at stock.

[Lsdmeasap]

Re: superPI crash on 32M calc

Yes, normal may not be enough please use auto or set manually

Sorry about the Ram voltage, you are likely right, but they are rated to 1.65 I just assumed it was 1600Mhz I think.

Stock Vtt may be fine at 1333Mhz though, but since you have raised your uncore you may need more Vdimm and QPI/Vtt to compensate for the higher uncore

x20 CPU multi has been known to cause issues with certain CPU's. Not only x20, just even numbers in itself, same applies with odd values for uncore, some CPU's don't like it and some CPU's don't care about either one of those so it just all depends on what your CPU Likes. Just thought I would mention it is all, no biggie right now I dont think.

[qwertylesh]

Re: superPI crash on 32M calc

My cpu can pass 90 linpack without any residual norm descripency, this is with 6gb (so it takes a long time) i believe the instability lies with the voltage on the memory controller and/or uncore.

[Lsdmeasap]

Re: superPI crash on 32M calc

90 passes on linpack is killing your CPU, please stop, 10-20 is plenty

But yes, you are correct, like I said you may need to adjust things on the QPI/Vtt and Uncore side of things

[qwertylesh]

Re: superPI crash on 32M calc

OK, heres what ive tried so far:
All volatages (apart from dram volt) on auto, still crashes.
Ive tried Uncore at x21, and upped the ICH and two IOH by an aditional (point) value each. Also upped the QPI PLL voltage by one (point) value.

Will try upping VTT by a (point) value now.

Could it be the DRAM termination voltage at 0.750 doing it?

edit: ok, now trying 1.3QPI/VTT and 1.18 IOH.

edit2: still no love.
Im wandering if its an addressing problem, SuperPi reports my available and available Real memory are both -1
and the kind of crash it is, is an Access Denied from trying to write to memory it shouldn't.

Would insufficient voltages really cause this?

edit3: set the ICH I/O and Core back to Auto, set the QPI PLL back to auto, upped the QPI/Vtt to 1.315v and bumped the IOH core to 1.200, testing now.

About the raising the uncore, I raised to to 20/21x for stability, as i read to run 1333mhz DDR if the Auto setting doesnt increase the uncore sufficiently you need to do it yourself, hopefully I can find a safe and stable voltage setting which will make my system all the more stable then it already is.

[qwertylesh]

Re: superPI crash on 32M calc

OK, it still crashes. :\

What I will do, ive ran out of time tonight to keep testing it.
but for now i'll set all volts apart from dram back to auto.
Tomorrow night I will try changing the command rate to 2T
and loosening the ram timings.
If it still wont run I can try higher QPI/VTT and ICH voltages.

[Lsdmeasap]

Re: superPI crash on 32M calc

Leave the dram terminations on Auto, and you should not have to use 2t at all unless this is super crappy memory

I only mentioned the x20 for CPU multi, I see why you are using 20 uncore and that is fine, you may even have better luck with 22

This is what I suggest for your settings mentioned above

0X00000050 << Incorrect Memory Timing/Freq or Uncore Multi
0X00000124 << Incorrect QPI/Vtt Voltage (To Much/Not Enough)
0X00000101 << Not enough Vcore Voltage

[B]Advanced CPU Features:[/B]
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 ......................... [Enabled]
CPU EIST Function ............................ [Disabled]
Virtualization Technology ................... [Enabled] << Disabled if you do not use Vmware or Virtual PC Programs
Bi-Directional PROCHOT ..................... [Enabled]


[B]Uncore & QPI Features:[/B]
QPI Link Speed .............................. x36 or x44
Uncore Frequency ..........................  20-22 (Always 2x memory Multi or 2x +1, 2x +2, ect) 
Isonchronous Frequency ..................[Enabled]


[B]Standard Clock Control:[/B]
Base Clock (BCLK) Control ................ [Enabled]
BCLK Frequency (MHz) ..................... 133
PCI Express Frequency (MHz) ........... [100]

C.I.A.2 [Disabled]

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


[B]Advanced DRAM Features:[/B]
Performance Enhance ...................... [Standard]
Extreme Memory Profile (X.M.P) ......... [Disabled]
System Memory Multiplier (SPD) ........ [10x]
DRAM Timing Selectable (SPD) .......... [Manual]

[B]Channel A + B + C

Channel A Timing Settings:[/B]
##Channel A Standard Timing Control##
CAS Latency Time ......................7
tRCD .......................................7
tRP .........................................7
tRAS .......................................20

Below values may be left in Auto if you like, generally this is fine.  For those users who DO Set advanced timings manually, please see some of my thoughts and findings about these settings and rules here
[url=http://www.xtremesystems.org/forums/showpost.php?p=3969957&postcount=3615]XtremeSystems Forums - View Single Post - Gigabyte EX58-UD5/Extreme Discussion Thread[/url]


##Channel A Advanced Timing Control##
tRC ........................................  Auto (Should be = tRAS + tRP or above for stability)
tRRD ....................................... Auto
tWTR ...................................... Auto (Must be Write to Read Delay/Same Rank - (tWL + 4)
tWR ........................................ Auto 5-12 (Odd # values likely will fail)
tWTP .......................................  Auto  (tWTP Must = tWR + tWL + 4)
tWL ........................................  Auto  (tWL Must be CAS Latency -1)
tRFC ....................................... Auto (Check in Memset/Cpu Tweaker to be sure Auto is at least setting 72-84)
tRTP ....................................... Auto
tFAW ...................................... Auto
Command Rate (CMD) ................ 1

##Channel A Misc Timing Control##
Round Trip Latency ................... Auto



[B]Advanced Voltage Control:

CPU[/B]
Load Line Calibration ................. [Disabled]
CPU Vcore ...............................Auto 
QPI/VTT Voltage 1.150v ............ 1.25-1.4 (For 1333 you should not need 1.4, but your CPU itself may be one that needs high Vtt, see BSOD Codes above to decide)

CPU PLL 1.800v .......................1.8 or Auto

[B]MCH/ICH[/B]
PCIE 1.500v ........................... Auto or 1.5-1.54
QPI PLL 1.100v ....................... 1.2-1.24
IOH Core 1.100v ..................... 1.2-1.24
ICH I/O 1.500v ....................... Auto or 1.5-1.58
ICH Core 1.1v ........................ 1.14-1.2

[B]DRAM[/B]
DRAM Voltage 1.500v .............. 1.64-1.66
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]