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Unstable OCZ PC2 8500 in overclocking?

post #1 of 3
Thread Starter 
I just started to overclock my E6600 to 3.4GHz but started to notice a veird act. It freezes after some time when I play MS Flight Simulator X. I know this software might be a little problematic especeially I have lots of add ons that may interfere the software. In contrast, I do think this is related to my overclocking. The reason that makes me think this way is as follows:

When I use Orthos for JUST CPU ONLY, it shows that it is stable BUT when I chose to stress BOTH CPU and MEMORY after 4 minutes it freezes. It happened several times. Also, when I leave it on over night doing something, in the morning I see it just like it restarted. For example, last night I re-installed STEAM and Counterstrike and when it was loading the updates to steam platform, I left it and went to the bed. In the morning when I turned on the monitor I saw that it was just like newly restarted all my startup programs were on. I am thinking that at some point it restarted itself. This is not considered as a healthy behavior unless it reboots after the installation of STEAM platform which I doubt.

I think the memory is messing up the stability. Would this be a valid observation? If so, what can I do to fix this? Below is the info about the memory I am using :

http://www.newegg.com/Product/Produc...82E16820227181

Currently it is running at 1058.3 MHz with 5-5-5-15 timings at 2.2V. (2.1V is the stock voltage)

Also, I am confused about what is really meant by saying CPU is stable? Is this only telling me that CPU is able to maintain to stay below 60C under full load for a certain time period? If so, how about the healthy communication between CPU and the memory? If CPU runs faster than the memory could handle, would this not also cause the stability issues?

Thanks,
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6600 @ 3.4GHz EVGA 680i SLI A1 8800 GTX 4GB OCZ PC2-8500 SLI 
Hard DriveOSMonitorPower
2 x 320GB Seagate RAID-0 & 1x160GB WD (Backup) Windows Vista Bus. x64 Dell 2005 Wide Screen Ultra X-Finity 600W SLI certified 
Case
X-Clio Windtunnel Black 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6600 @ 3.4GHz EVGA 680i SLI A1 8800 GTX 4GB OCZ PC2-8500 SLI 
Hard DriveOSMonitorPower
2 x 320GB Seagate RAID-0 & 1x160GB WD (Backup) Windows Vista Bus. x64 Dell 2005 Wide Screen Ultra X-Finity 600W SLI certified 
Case
X-Clio Windtunnel Black 
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post #2 of 3
well why are you running your memory under stock speeds and above stock volts??? I have the same memory and the only time i have a problem is if i am running it over like 1250mhz???
my own little ish
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6420@3.2 EVGA 680i sli EVGA 8800 gts 320mb 2 GIGS OCZ DDR2 PC2-8500 SLI-Ready Edition 
Hard DriveOptical DriveOSMonitor
150gig raptorx 500gig wd sata Lite On 20X Dvd/Cd-R/RW SATA xp pro samsung syncMaster 226bw 
PowerCaseMouse
rosewill turbo series 550W NZXT Zero MX Revolution 
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my own little ish
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6420@3.2 EVGA 680i sli EVGA 8800 gts 320mb 2 GIGS OCZ DDR2 PC2-8500 SLI-Ready Edition 
Hard DriveOptical DriveOSMonitor
150gig raptorx 500gig wd sata Lite On 20X Dvd/Cd-R/RW SATA xp pro samsung syncMaster 226bw 
PowerCaseMouse
rosewill turbo series 550W NZXT Zero MX Revolution 
  hide details  
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post #3 of 3
Thread Starter 
that's agood question, I never thought about this... I just let the SLI ready memory function to adjust the speeds of the memory bus and once I was running into the problems I thought it might be because of the less voltage and increased it. Never looked at the whole picture.. I think you are right.

Overclocking the memory is a litle tricky for me. I read everywhere that using SLI-Ready function is not suggested when overclocking. However, if I dont use it and change the FSB my own, the timings go off the roof 7-7-7-20 or so. I noticed when the SLI ready function was on, it would keep the timings and change the memory FSB to maintain the stock timings. So I am basically I am sacrificing 9MHz (running at 1058 vs 1067) and keep the same timings while I am increasing the CPU FSB to 1512 vs 1066.

Am I making sense? I am new at this thing so some stuff may make sense to me but it may sound totally nonsense and nobrainer to others who know more about overclocking.

Thanks,
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6600 @ 3.4GHz EVGA 680i SLI A1 8800 GTX 4GB OCZ PC2-8500 SLI 
Hard DriveOSMonitorPower
2 x 320GB Seagate RAID-0 & 1x160GB WD (Backup) Windows Vista Bus. x64 Dell 2005 Wide Screen Ultra X-Finity 600W SLI certified 
Case
X-Clio Windtunnel Black 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6600 @ 3.4GHz EVGA 680i SLI A1 8800 GTX 4GB OCZ PC2-8500 SLI 
Hard DriveOSMonitorPower
2 x 320GB Seagate RAID-0 & 1x160GB WD (Backup) Windows Vista Bus. x64 Dell 2005 Wide Screen Ultra X-Finity 600W SLI certified 
Case
X-Clio Windtunnel Black 
  hide details  
Reply
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