Sudden Issues when benching
 

Guys,

I tried for a Super PI bench session today and for an unknown apparent reason i started off at 4545 MHz, as I get closer to 4.6 GHz runs start getting slower and eventually crash. Windows starts to get sluggish, the mouse stutters as it moves and then crashes and I get sometimes a "FF" on the LCD of the board. My best super pi previously was at 4734 Mhz so I know the CPU has more left in it for super pi. I noticed that the other day when I ran some 3dmarks I had an issue at close to 4.6 GHz too that's why I ran them lower at 4529 MHz. This all really started since I installed XP 32 bit, previously it was Windows 7 64 Bit.

If i was to reinstall or change the OS and the issue is not solved, what do you guys think it can be? Something degrading/failing, or just for some apparent reason a need of tweaking???

Can you put your bios settings up so we can take a look?

CP - When the mouse stutters, is it like Yosimite Sam or more of a Mel Tillis? :D

Sure, here you go:

Mother Board ( EVGA X58 SLI E-758A1 )
Bios ( ?? )
CPU ( i7 920 D0 )
CPU Cooler ( Megahalem)
Memory (Super Talent 3x1GB CAS 8 DDR3-1800 )
PSU ( PCP&C 860 Turbo Cool)
GPU ( Radeon X300)
Drivers ( ??? )
Operating System ( Xp home 32 bit )

Frequency Control
CPU Multiplier ( 20X )
CPU Host Frequency (Mhz) ( 216 )
MCH Strap ( Auto )
CPU Uncore Frequency (Mhz) ( 16x )
CPU Clock Skew ( 0 ps )
Spread Spectrum ( Disabled )
PCIE Frequency (Mhz) ( 102 )

Memory Feature
Memory Speed ( Standard )
Memory Control Setting ( Enabled )
Memory Frequency ( 2:6 )
Channel Interleave Setting ( 6 Way )
Rank Interleave Setting ( 4 Way )
Memory Low Gap ( Auto )
tCL Setting ( 8)
tRCD Setting (8)
tRP Setting (8)
tRAS Setting (24)
tRFC Setting ( 74 )
Command Rate ( 1t )

Voltage Control
EVGA VDroop Control ( Without VDroop )
CPU VCore ( 1.4500)
CPU VTT Voltage ( +100 )
CPU PLL VCore ( 1.800 )
DIMM Voltage ( 1.675 )
QPI PLL VCore ( 1.300 )
IOH VCore (1.225 )
IOH/ICH I/O Voltage ( 1.600 )
ICH VCore ( 1.225 )

CPU Feature
Intel SpeedStep ( Disabled )
Turbo Mode Function ( Disabled)
CxE Function ( Disabled )
Execute Disable Bit ( Disabled )
Virtualization Technology ( Disabled )
Intel HT Technology ( disabled for super pi runs )
Active Processor Cores ( All )
QPI Control Settings ( Enabled )
QPI Link Fast Mode ( Enabled )
QPI Frequency Selection ( 4.8 GT/s )
OC Recovery ( Disabled )

now you really puzzled me :laugh:

MCH strap to 1600 for sure. :)

When it starts to stutter like that, try upping the pcie mhz a couple notches till it stops. I think you should be safe up to 108, 110 pciemhz. Tell me if it helps at all.

Maybe run RealTemp in the background to rule temp problems out?

Done for tonight guys, but i'll give this a go tomorrow for sure and post back, thanks. :toast:

@kal
I did try up to 104 MHz, that didn't seem to help the problem. What seemed like it helped was raising my ICH voltage up another notch, but still had slow runs and some stuttering.
I have, temps are in the 40's (celsius), plus the lcd display on the board says ambient temps. The hottest core is always about 15ºc above what the display says. I.E. Display says 50ºc, core is at max 65ºc. That's how I keep an eye on my temps when a temp. monitoring program is closed.

with default bios settings, same results?

no, it's only as I'm getting close to the 4.6 GHz mark, but I have ran super pi at over 4.7 GHz with same exact hardware without issues. All these issues started with the XP install :( Maybe it's bad or it just doesn't like 32 bit for some reason?