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i7 860 4ghz, RAM stability?

post #1 of 3
Thread Starter 
Hello everyone,

I am running my i7 860 on an asus p7p55d pro. I previously had a 3.8ghz OC with 200x19 Vcore I believe was around 1.375. HT on.

After checking some benchmarks online I decided to turn HT off and go for some extra mhz for gaming reasons.

The thing is I lowered the ram to about 1200 but kept all other settings the same, and had several hours of prime saying that my 4.0ghz was stable. When I brought the RAM back up to 1600, the system failed prime. my RAM timings are all set to their recommended timings and voltages (1.65v C8) and the IMC volts are pretty high at 1.36 or so (one notch above 1.35). The ram also seemed very stable at those settings at 3.8ghz cpu.

What should I be increasing here? Prime blend tests don't push the system beyond 77 deg C.

thanks,

Matt
Darlin'
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Darlin'
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post #2 of 3
You need to increase the voltage of the memory controller of the processor. This will be called either CPU VTT or QPI/DRAM voltage in the bios.
Beast
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Beast
(14 items)
 
Dell XPS Faptop
(8 items)
 
Alura :)
(11 items)
 
CPUMotherboardGraphicsRAM
i7 4790k Asus Z97 Pro WIFI-AC Sapphire Nitro Radeon R9 Fury Tri-X OC+  G.Skill 4 x 8GB F3-2133C9D-16GXH 
Hard DriveOptical DriveCoolingOS
2 x Intel 730 480GB SSD in RAID 0 Asus DRW-24B1ST/BLK/B/AS Noctua NH-D15 Winblows 10 Pro x64 
MonitorKeyboardPowerCase
Pixio PX277 Logitech G510 Seasonic SS-660XP2 Fractal Design R4 Blackout 
MouseMouse Pad
Logitech G500 Xtrac Ripper 
CPUMotherboardGraphicsRAM
Core 2 Duo T5250 @ 1.5ghz Dell 0N6705 Mobile Intel 965 Express 2 x 2GB Hyundai/Kingston DDR2 533mhz 
Hard DriveOptical DriveOSMonitor
OCZ Summit 60GB SSD Slot Load DVD-RW Windows 7 Ultimate x64 13.3 inch 1280x800 
CPUMotherboardGraphicsRAM
i5 2500k Asus P8Z68-V Pro MSI R7970 Lightning BE 2 x 4GB G.Skill Ripjaws 2133mhz 
Hard DriveOptical DriveCoolingOS
Mushkin Enhanced Chronos 240GB and WD Black 1TB Asus DRW-24B1ST Cooler Master Hyper 212 EVO Windows 7 Ultimate x64 
MonitorPowerCase
Hannspree 24 inch Thermaltake Tough Power TP-750P 750W Gold Cooler Master HAF 932 
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post #3 of 3
Thread Starter 
My asus board lists the VTT as IMC voltage, so it seems pretty high right now.
Darlin'
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CPUMotherboardGraphicsRAM
I7 860 Asus P7P55D Pro Radeon 5870 2x2gb 1600c8 
OSPowerCase
Win7-64 bit OCZ Stealth Xtreme 600W Antec 900 chainsaw file mod 
  hide details  
Reply
Darlin'
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 Asus P7P55D Pro Radeon 5870 2x2gb 1600c8 
OSPowerCase
Win7-64 bit OCZ Stealth Xtreme 600W Antec 900 chainsaw file mod 
  hide details  
Reply
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