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i5-2500K Issue with 1600MHz RAM?

post #1 of 3
Thread Starter 
First time poster in Intel's parts of OCN. Under my recommendation, my brother has upgraded his system to an Intel Sandy Bridge system. He bought an Intel Core i5-2500K CPU bundled with an Asus P8P67 motherboard and a kit of Corsair Vengeance 8GB (2x4GB) DDR3-1600MHz CAS 8 of RAM. These are the products:

CPU & Motherboard Bundle = http://www.overclockers.co.uk/showpr...=6&subcat=1858
RAM = http://www.overclockers.co.uk/showpr...=8&subcat=1517

I told my brother that by SPD, motherboards do not set the correct RAM speed or timings. I told him to set the following in his BIOS (no overclocking here, just trying to run the RAM at its rated speed):

Quote:
DRAM Frequency = 1600MHz
DRAM Voltage = 1.50V
DRAM CAS# Latency (CL) = 8 CLK
DRAM RAS# to CAS# Delay (tRCD) = 8 CLK
DRAM RAS# PRE Time (tRP) = 8 CLK
DRAM RAS# ACT Time (tRAS) = 24 CLK
DRAM Command Rate (CR) = 1T
He reports that his changes worked. The next day (today), on trying to boot his system, it failed, reporting an error "Overclocking failed" and asking him to enter his BIOS to alter settings. He therefore tried setting an "XMP" profile, which should have set the exact same settings I told him to set (according to the RAM specifications). That also failed. He is now forced to run his RAM at 1333MHz although he is able to run the timings and voltage I specified.

From experience, my AMD Phenom II CPUs have not been able to run RAM at 1600MHz even though the RAM was rated at this from the manufacturer. I always had to (and still do) run my RAM at 1333MHz. I'm aware that current AMD IMCs are 1333MHz, hence the limit in my view. Are Intel Sandy Bridge IMCs also limited to 1333MHz?
Can my brother really not run the two sticks at 1600MHz?
How come some people seem to stably run their RAM at ridiculous speeds like 1800MHz or even 2000MHz??
Thanks for any tips you can provide!
    
CPUMotherboardGraphicsRAM
Intel Core i7-5820K Haswell-E Asus ROG Rampage V Extreme Intel X99 EVGA GeForce GTX 1080 FTW Corsair Vengeance Red LED 32GB (4x8GB) DDR4-300... 
Hard DriveHard DriveHard DriveCooling
Samsung 840 500GB SSD (SATA-6Gbps) Western Digital Black 1TB 64MB Cache HDD (SATA-... Western Digital Black 4TB 64MB Cache HDD (SATA-... NZXT Kraken X52 & 2x Corsair SP120 RGB 120mm Fa... 
CoolingCoolingCoolingOS
EVGA ACX 3.0 (Graphics Card) 4x Corsair SP120 RGB 120mm Case Fans IC Diamond 7 Carat Thermal Compound Microsoft Windows 10 Home 
MonitorKeyboardPowerCase
LG Flatron 34UM95-P 34" 3440x1440 21:9 IPS SteelSeries Apex 350 Low Profile RGB EVGA SuperNova G2 1000W Modular Corsair Crystal 570X RGB 
MouseMouse PadAudioAudio
Logitech G502 Proteus Core ModMyMachine SlamePad Aluminium Magnum Champagne Creative Labs Sound Blaster ZxR 2x Acoustic Energy Aego M 2.1 Speakers & 1 Cent... 
AudioOtherOtherOther
Beyerdynamic DT770 Pro 250Ohm Headphones (Dynam... Saitek X-55 Rhino HOTAS Logitech G27 Racing Steering Wheel HTC Vive 
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CPUMotherboardGraphicsRAM
Intel Core i7-5820K Haswell-E Asus ROG Rampage V Extreme Intel X99 EVGA GeForce GTX 1080 FTW Corsair Vengeance Red LED 32GB (4x8GB) DDR4-300... 
Hard DriveHard DriveHard DriveCooling
Samsung 840 500GB SSD (SATA-6Gbps) Western Digital Black 1TB 64MB Cache HDD (SATA-... Western Digital Black 4TB 64MB Cache HDD (SATA-... NZXT Kraken X52 & 2x Corsair SP120 RGB 120mm Fa... 
CoolingCoolingCoolingOS
EVGA ACX 3.0 (Graphics Card) 4x Corsair SP120 RGB 120mm Case Fans IC Diamond 7 Carat Thermal Compound Microsoft Windows 10 Home 
MonitorKeyboardPowerCase
LG Flatron 34UM95-P 34" 3440x1440 21:9 IPS SteelSeries Apex 350 Low Profile RGB EVGA SuperNova G2 1000W Modular Corsair Crystal 570X RGB 
MouseMouse PadAudioAudio
Logitech G502 Proteus Core ModMyMachine SlamePad Aluminium Magnum Champagne Creative Labs Sound Blaster ZxR 2x Acoustic Energy Aego M 2.1 Speakers & 1 Cent... 
AudioOtherOtherOther
Beyerdynamic DT770 Pro 250Ohm Headphones (Dynam... Saitek X-55 Rhino HOTAS Logitech G27 Racing Steering Wheel HTC Vive 
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post #2 of 3
Tell him to try setting PowerOn by PCIE in APM of Bios. There's an issue with cold booting on some P8P67 boards where it'll either reset the CMOS or throw out Overclocking Failed. I'd try updating the bios also as they supposedly fixed the issue lol.
The Wtfer
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2600K ASUS P8Z68-V PRO EVGA GTX 465 w/ 470 Shaders/Memory/Clocks 8GB G.Skill DDR3 1866 
Hard DriveOptical DriveOSMonitor
Samsung F3 1TB LG 22X DVD±R DVD Burner Windows 7 Professional 64-Bit Dell U2311H + LG W2242S 
PowerCase
Corsair 750TX Coolermaster RC-692 Advanced 
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The Wtfer
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2600K ASUS P8Z68-V PRO EVGA GTX 465 w/ 470 Shaders/Memory/Clocks 8GB G.Skill DDR3 1866 
Hard DriveOptical DriveOSMonitor
Samsung F3 1TB LG 22X DVD±R DVD Burner Windows 7 Professional 64-Bit Dell U2311H + LG W2242S 
PowerCase
Corsair 750TX Coolermaster RC-692 Advanced 
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post #3 of 3
Thread Starter 
Quote:
Originally Posted by LethalRise750 View Post
Tell him to try setting PowerOn by PCIE in APM of Bios. There's an issue with cold booting on some P8P67 boards where it'll either reset the CMOS or throw out Overclocking Failed. I'd try updating the bios also as they supposedly fixed the issue lol.
Thank you, I will ask him whether he did indeed update the BIOS. I told him to update it with the latest version as soon as he built his system but he never confirmed whether he did or not!
    
CPUMotherboardGraphicsRAM
Intel Core i7-5820K Haswell-E Asus ROG Rampage V Extreme Intel X99 EVGA GeForce GTX 1080 FTW Corsair Vengeance Red LED 32GB (4x8GB) DDR4-300... 
Hard DriveHard DriveHard DriveCooling
Samsung 840 500GB SSD (SATA-6Gbps) Western Digital Black 1TB 64MB Cache HDD (SATA-... Western Digital Black 4TB 64MB Cache HDD (SATA-... NZXT Kraken X52 & 2x Corsair SP120 RGB 120mm Fa... 
CoolingCoolingCoolingOS
EVGA ACX 3.0 (Graphics Card) 4x Corsair SP120 RGB 120mm Case Fans IC Diamond 7 Carat Thermal Compound Microsoft Windows 10 Home 
MonitorKeyboardPowerCase
LG Flatron 34UM95-P 34" 3440x1440 21:9 IPS SteelSeries Apex 350 Low Profile RGB EVGA SuperNova G2 1000W Modular Corsair Crystal 570X RGB 
MouseMouse PadAudioAudio
Logitech G502 Proteus Core ModMyMachine SlamePad Aluminium Magnum Champagne Creative Labs Sound Blaster ZxR 2x Acoustic Energy Aego M 2.1 Speakers & 1 Cent... 
AudioOtherOtherOther
Beyerdynamic DT770 Pro 250Ohm Headphones (Dynam... Saitek X-55 Rhino HOTAS Logitech G27 Racing Steering Wheel HTC Vive 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Intel Core i7-5820K Haswell-E Asus ROG Rampage V Extreme Intel X99 EVGA GeForce GTX 1080 FTW Corsair Vengeance Red LED 32GB (4x8GB) DDR4-300... 
Hard DriveHard DriveHard DriveCooling
Samsung 840 500GB SSD (SATA-6Gbps) Western Digital Black 1TB 64MB Cache HDD (SATA-... Western Digital Black 4TB 64MB Cache HDD (SATA-... NZXT Kraken X52 & 2x Corsair SP120 RGB 120mm Fa... 
CoolingCoolingCoolingOS
EVGA ACX 3.0 (Graphics Card) 4x Corsair SP120 RGB 120mm Case Fans IC Diamond 7 Carat Thermal Compound Microsoft Windows 10 Home 
MonitorKeyboardPowerCase
LG Flatron 34UM95-P 34" 3440x1440 21:9 IPS SteelSeries Apex 350 Low Profile RGB EVGA SuperNova G2 1000W Modular Corsair Crystal 570X RGB 
MouseMouse PadAudioAudio
Logitech G502 Proteus Core ModMyMachine SlamePad Aluminium Magnum Champagne Creative Labs Sound Blaster ZxR 2x Acoustic Energy Aego M 2.1 Speakers & 1 Cent... 
AudioOtherOtherOther
Beyerdynamic DT770 Pro 250Ohm Headphones (Dynam... Saitek X-55 Rhino HOTAS Logitech G27 Racing Steering Wheel HTC Vive 
  hide details  
Reply
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