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What's the fastest OC memory an I5 750 can handle.

post #1 of 5
Thread Starter 
My specs are below. I was wondering. I cannot seem to get my memory to run at 1600Mhz even though it's rated for it. Is my I5-750 limiting my ability to OC the memory even though my motherboard supports it?
Or, is the memory the issue.
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CPUMotherboardGraphicsRAM
I5 750 @3.809 Ghz MSI P55-GD85 XFX 5850 @ 801/1150 38c idle 8 GB Corsair XMS3 1600 Mhz 
Hard DriveOptical DriveCoolingOS
Raid 0 2TB, 1.5TB Hitachi backup SONY DVD Ram + Lightscribe Hyper 212 Plus Windows 7 64bit / Zorin 
MonitorKeyboardPowerCase
LG FLATRON W2361V Saitek V.5 Cyborg Silverstone Element 750w PSU Cooler Master CM690 II Advanced 
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My Mobile Beast
(16 items)
 
  
CPUMotherboardGraphicsRAM
I5 750 @3.809 Ghz MSI P55-GD85 XFX 5850 @ 801/1150 38c idle 8 GB Corsair XMS3 1600 Mhz 
Hard DriveOptical DriveCoolingOS
Raid 0 2TB, 1.5TB Hitachi backup SONY DVD Ram + Lightscribe Hyper 212 Plus Windows 7 64bit / Zorin 
MonitorKeyboardPowerCase
LG FLATRON W2361V Saitek V.5 Cyborg Silverstone Element 750w PSU Cooler Master CM690 II Advanced 
MouseMouse PadAudioAudio
Logitech G700 NA Creative 2.1 Lenovo P950 Headset 
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post #2 of 5
No it's not limiting you.I can run my ram at 2200mhz+ with ease.
Okay it's not easy but it's just a ram limitation.

You may need to set your rams voltage and timings manually.

Most likely your board is defaulting too 1.5v and that may not be enough for them too run 1600.
Edited by djsi38t - 7/23/11 at 6:58pm
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
I5-750 4.3@1.375v Asus Maximus III Formula Asus ENGTX465 4gb G Skill 2000 Mhz.Trident @2133 9-9-9-27 
Hard DriveOptical DriveCoolingOS
OCZ VERTEX 2 50GB SSD/WD 500GB Blue/WD640GB Black Samsung DVD/RW Corsair H-50 Windows 10 home 64 Bit Retail 
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ASUS 24"1080P LED Asus VE248H Abs M1 Cooler master silent pro 600 modular M600 RS-60... Lian Li Lancool PCK-58 
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Steelseries Kinzu no 
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My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
I5-750 4.3@1.375v Asus Maximus III Formula Asus ENGTX465 4gb G Skill 2000 Mhz.Trident @2133 9-9-9-27 
Hard DriveOptical DriveCoolingOS
OCZ VERTEX 2 50GB SSD/WD 500GB Blue/WD640GB Black Samsung DVD/RW Corsair H-50 Windows 10 home 64 Bit Retail 
MonitorKeyboardPowerCase
ASUS 24"1080P LED Asus VE248H Abs M1 Cooler master silent pro 600 modular M600 RS-60... Lian Li Lancool PCK-58 
MouseMouse Pad
Steelseries Kinzu no 
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post #3 of 5
As far as I can see you ram is running at stock speeds!

This is what your CPUZ validation says

RAM Speed : 802 MHz

Double that, and thats your ram frequency.
1604MHz

Quote:
RAM : 8192 MB DDR3 Dual Channel
RAM Speed : 802 MHz (2:8) @ 9-9-9-24
Slot 1 : 2048MB (10700)
Slot 1 Manufacturer : Corsair
Slot 2 : 2048MB (10700)
Slot 2 Manufacturer : Corsair
Slot 3 : 2048MB (10700)
Slot 3 Manufacturer : Corsair
Slot 4 : 2048MB (10700)
Slot 4 Manufacturer : Corsair
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Intel i7 990 extreme @ 4.2GHz ASRock X58 Extreme MSI GTX-580 lightning G.Skill Ripjaws X DDR3-2000 9-9-9-24 
Hard DriveHard DriveOptical DriveCooling
Intel 510 250Gb SSD WD RE4 250Gb x 4 Raid-0 Plextor DVR 880SA VenomousX 
OSKeyboardPowerCase
W7 Razor Lycosa PC power & cooling 950 CM ATCS-840 
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SB Xf-i Xtreme Professional, Z2300 speakers WD 1Tb external SATA II 64Mb cache HD 
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Game Killer
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CPUMotherboardGraphicsRAM
Intel i7 990 extreme @ 4.2GHz ASRock X58 Extreme MSI GTX-580 lightning G.Skill Ripjaws X DDR3-2000 9-9-9-24 
Hard DriveHard DriveOptical DriveCooling
Intel 510 250Gb SSD WD RE4 250Gb x 4 Raid-0 Plextor DVR 880SA VenomousX 
OSKeyboardPowerCase
W7 Razor Lycosa PC power & cooling 950 CM ATCS-840 
AudioOther
SB Xf-i Xtreme Professional, Z2300 speakers WD 1Tb external SATA II 64Mb cache HD 
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post #4 of 5
Thread Starter 
Quote:
Originally Posted by Inteller View Post
As far as I can see you ram is running at stock speeds!

This is what your CPUZ validation says

RAM Speed : 802 MHz

Double that, and thats your ram frequency.
1604MHz
It was running at that speed until 4 gb of the memory had 6 errors on 1 stick and 7 on the other which I sent back to Corsair for RMA replacement. Now running the other 4 gb I have left at faster rated timings, it wont run stable any higher than 1560 mhz so far.
My Mobile Beast
(16 items)
 
  
CPUMotherboardGraphicsRAM
I5 750 @3.809 Ghz MSI P55-GD85 XFX 5850 @ 801/1150 38c idle 8 GB Corsair XMS3 1600 Mhz 
Hard DriveOptical DriveCoolingOS
Raid 0 2TB, 1.5TB Hitachi backup SONY DVD Ram + Lightscribe Hyper 212 Plus Windows 7 64bit / Zorin 
MonitorKeyboardPowerCase
LG FLATRON W2361V Saitek V.5 Cyborg Silverstone Element 750w PSU Cooler Master CM690 II Advanced 
MouseMouse PadAudioAudio
Logitech G700 NA Creative 2.1 Lenovo P950 Headset 
  hide details  
Reply
My Mobile Beast
(16 items)
 
  
CPUMotherboardGraphicsRAM
I5 750 @3.809 Ghz MSI P55-GD85 XFX 5850 @ 801/1150 38c idle 8 GB Corsair XMS3 1600 Mhz 
Hard DriveOptical DriveCoolingOS
Raid 0 2TB, 1.5TB Hitachi backup SONY DVD Ram + Lightscribe Hyper 212 Plus Windows 7 64bit / Zorin 
MonitorKeyboardPowerCase
LG FLATRON W2361V Saitek V.5 Cyborg Silverstone Element 750w PSU Cooler Master CM690 II Advanced 
MouseMouse PadAudioAudio
Logitech G700 NA Creative 2.1 Lenovo P950 Headset 
  hide details  
Reply
post #5 of 5
So are you saying that 1-4Gb set has tighter timings than the new/replacement set of 4Gb's???

Edit:
Ok, well it looks like you've gone.
But to get things working right, if your 2 different sets do have different timings, then you need to use the loosest timings, not the tighter ones!

Thats whats limiting you in getting back to 1600MHz!
Edited by Inteller - 7/23/11 at 8:26pm
Game Killer
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 990 extreme @ 4.2GHz ASRock X58 Extreme MSI GTX-580 lightning G.Skill Ripjaws X DDR3-2000 9-9-9-24 
Hard DriveHard DriveOptical DriveCooling
Intel 510 250Gb SSD WD RE4 250Gb x 4 Raid-0 Plextor DVR 880SA VenomousX 
OSKeyboardPowerCase
W7 Razor Lycosa PC power & cooling 950 CM ATCS-840 
AudioOther
SB Xf-i Xtreme Professional, Z2300 speakers WD 1Tb external SATA II 64Mb cache HD 
  hide details  
Reply
Game Killer
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 990 extreme @ 4.2GHz ASRock X58 Extreme MSI GTX-580 lightning G.Skill Ripjaws X DDR3-2000 9-9-9-24 
Hard DriveHard DriveOptical DriveCooling
Intel 510 250Gb SSD WD RE4 250Gb x 4 Raid-0 Plextor DVR 880SA VenomousX 
OSKeyboardPowerCase
W7 Razor Lycosa PC power & cooling 950 CM ATCS-840 
AudioOther
SB Xf-i Xtreme Professional, Z2300 speakers WD 1Tb external SATA II 64Mb cache HD 
  hide details  
Reply
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