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Quick RAM Question

post #1 of 9
Thread Starter 
Hey guys, overclocked my I7 and I'm stable in linx at 3.6ghz with 1.152 vcore and 60c max linx temp. Actually I might even be able to go lower, must have
restarted my comp a dozen times continually lowering vcore, 1.152 and still stable wow.

Anyway using 21x multi and 172 bclk I had to set ram ratio to 8 giving it a speed of 1376mhz. With a ratio of 10 it goes past the 1600mhz specs.

Should I go ahead and use 10x multiplier on the ram, overclocking it to 1720mhz? Or maybe tighten the timings instead? (put them at stock 9-9-9-24)

Ram model: F3-12800CL9T-6GBNQ
    
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post #2 of 9
Generally, intels like higher frequences; so I'd go ahead and and use the multi. You can then bump it up more until you are unstable or keep it there and attempt to lower timings.
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post #3 of 9
Thread Starter 
Would you expect 1720mhz to be safe? Thanks
    
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post #4 of 9
It should be safe as long as you are not having to volt the mess out of it to get it stable.
post #5 of 9
Thread Starter 
K thanks, going to try that now.
    
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post #6 of 9
Test RAM for errors with HCI Memtest in windows. If you have 5600MB RAM available and 8 threads run 8 copies of HCI Memtest testing 700MB each, if 4 threads(HT off) run 4 copies with 1400MB each.

If you get errors you need to either increase voltage(vDIMM for the RAM itself or VTT/QPI for the memory controller), loosen the timings or drop the clocks a bit.
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post #7 of 9
Thread Starter 
Yeah just did and I got a few bluescreens. Took a bit more QPI voltage, 1.275v I think it was and it's now stable in linx with full mem usage.

Was just about to run memtest86+. Should I use that HCI memtest instead?
    
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CPUMotherboardGraphicsGraphics
I7 4790k 4.7ghz Asrock Z97 Extreme4 Gigabyte G1 GTX 970 SLI @ 1590Mhz Gigabyte G1 GTX 970 SLI @ 1590Mhz 
RAMHard DriveHard DriveHard Drive
16gb GSkill Sniper 2200mhz Crucial MX100 256gb Samsung F3 1TB Samsung F3 1TB 
Hard DriveCoolingCoolingCooling
Seagate 3TB EK Supremacy Evo EK Nickel VGA Block x2 w/ Backplates Alphacool UT60 480mm Rad 
CoolingCoolingCoolingOS
Alphacool XT45 480mm Rad Dual D5 Pump w/ Dual Pump Top Gentle Typhoon AP-15s x18 Win 7 64 bit 
MonitorMonitorPowerCase
Qnix QX2710 1440P + 1080P IPS secondary Benq W1070 Projector on 120" Screen Seasonic Platinum 1200w Corsair 900D 
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post #8 of 9
I've had settings pass boot mode memtest86+ that got errors in HCI Memtest, with all available memory split among CPU threads its the hardest RAM test I've found.

Prime blend and LinX all memory/IBT maximum memory are also pretty strong.
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i7 950 @ 4.3GHz Evga X58 3SLI 2X SLI Evga GTX 275 FTWs 756/1620/1296 6GB Mushkin Blackline 1600MHz 78720591T 
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post #9 of 9
Thread Starter 
Well finished 8 instances of HC1 memtest with no errrors, all seems to be good now. Thank you
    
CPUMotherboardGraphicsGraphics
I7 4790k 4.7ghz Asrock Z97 Extreme4 Gigabyte G1 GTX 970 SLI @ 1590Mhz Gigabyte G1 GTX 970 SLI @ 1590Mhz 
RAMHard DriveHard DriveHard Drive
16gb GSkill Sniper 2200mhz Crucial MX100 256gb Samsung F3 1TB Samsung F3 1TB 
Hard DriveCoolingCoolingCooling
Seagate 3TB EK Supremacy Evo EK Nickel VGA Block x2 w/ Backplates Alphacool UT60 480mm Rad 
CoolingCoolingCoolingOS
Alphacool XT45 480mm Rad Dual D5 Pump w/ Dual Pump Top Gentle Typhoon AP-15s x18 Win 7 64 bit 
MonitorMonitorPowerCase
Qnix QX2710 1440P + 1080P IPS secondary Benq W1070 Projector on 120" Screen Seasonic Platinum 1200w Corsair 900D 
MouseMouse PadAudioAudio
Logitech G9X Mionix Propus 380 ATH AD700 Creative X-Fi Titanium 
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Logitech X-530 
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CPUMotherboardGraphicsGraphics
I7 4790k 4.7ghz Asrock Z97 Extreme4 Gigabyte G1 GTX 970 SLI @ 1590Mhz Gigabyte G1 GTX 970 SLI @ 1590Mhz 
RAMHard DriveHard DriveHard Drive
16gb GSkill Sniper 2200mhz Crucial MX100 256gb Samsung F3 1TB Samsung F3 1TB 
Hard DriveCoolingCoolingCooling
Seagate 3TB EK Supremacy Evo EK Nickel VGA Block x2 w/ Backplates Alphacool UT60 480mm Rad 
CoolingCoolingCoolingOS
Alphacool XT45 480mm Rad Dual D5 Pump w/ Dual Pump Top Gentle Typhoon AP-15s x18 Win 7 64 bit 
MonitorMonitorPowerCase
Qnix QX2710 1440P + 1080P IPS secondary Benq W1070 Projector on 120" Screen Seasonic Platinum 1200w Corsair 900D 
MouseMouse PadAudioAudio
Logitech G9X Mionix Propus 380 ATH AD700 Creative X-Fi Titanium 
Audio
Logitech X-530 
  hide details  
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