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RAM question

post #1 of 7
Thread Starter 
As some of you may know I recently built up a new rig. And I was wondering....How do I know and/or where can I check to see how fast my RAM is actually running? I went into the BIOS and checked to see and my DRAM timings and Mhz frequency matches that of the manufacturer specs.(1333mhz@ 9-9-9-24)

Is that all I check? Or is there something else I do? Main reason I am asking is because of this.



Timings are correct but frequency says 669.6? Does the ram down-clock itself, like the cpu and gpu, when its full potential is not needed?
My System
(19 items)
 
  
CPUMotherboardGraphicsRAM
FX 8350 Asus Crosshair V Formula EVGA GTX 770 SC ACX 8Gb Corsair Vengeance Pro 1866 
Hard DriveHard DriveHard DriveHard Drive
Plextor M5S 128Gb(OS) Plextor M5S 256Gb(RAID0) Plextor M5S 256Gb(RAID0) Western Digital Cavair Green 2Tb 
Optical DriveCoolingOSMonitor
ASUS 24x DVD RW Corsair H80i Windows 7 64-bit LG 24MP56HQ-P IPS 
MonitorKeyboardPowerCase
Samsung SyncMaster B2230 Corsair K70 Corsair TX650 V2 Cooler Master CM Storm Trooper 
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Razer DeathAdder 3.5G Panasonic 500w stereo 
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My System
(19 items)
 
  
CPUMotherboardGraphicsRAM
FX 8350 Asus Crosshair V Formula EVGA GTX 770 SC ACX 8Gb Corsair Vengeance Pro 1866 
Hard DriveHard DriveHard DriveHard Drive
Plextor M5S 128Gb(OS) Plextor M5S 256Gb(RAID0) Plextor M5S 256Gb(RAID0) Western Digital Cavair Green 2Tb 
Optical DriveCoolingOSMonitor
ASUS 24x DVD RW Corsair H80i Windows 7 64-bit LG 24MP56HQ-P IPS 
MonitorKeyboardPowerCase
Samsung SyncMaster B2230 Corsair K70 Corsair TX650 V2 Cooler Master CM Storm Trooper 
MouseAudio
Razer DeathAdder 3.5G Panasonic 500w stereo 
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post #2 of 7
Its DDR RAM so you multiply that number in CPUz by 2. You're good. Try tightening timings and testing for stability with HCI Memtest, maybe your kit can run faster if its got good modules.
Nehalem
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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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OCZ Vertex2 60GB Sony FW900 Corsair 850TX 
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Nehalem
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CPUMotherboardGraphicsRAM
i7 950 @ 4.3GHz Evga X58 3SLI 2X SLI Evga GTX 275 FTWs 756/1620/1296 6GB Mushkin Blackline 1600MHz 78720591T 
Hard DriveMonitorPower
OCZ Vertex2 60GB Sony FW900 Corsair 850TX 
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post #3 of 7
THAT number= DRAM Frequency. You double that and you have the speed your RAM is running at. The timings are below that which in this case would be 9-9-9-24
Coal Factory
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel I7 4770 Gigabyte Z97-HD3 PowerColor R9 380 8GB G Skill DDR3 
Hard DriveHard DriveOptical DriveCooling
Mushkin 240GB SSD WD Blue 1TB LG BR/DVD-RW Stock 
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Windows 10 28" Asus Corsair CX600 Rosewill Star Predator 
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Coal Factory
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel I7 4770 Gigabyte Z97-HD3 PowerColor R9 380 8GB G Skill DDR3 
Hard DriveHard DriveOptical DriveCooling
Mushkin 240GB SSD WD Blue 1TB LG BR/DVD-RW Stock 
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Windows 10 28" Asus Corsair CX600 Rosewill Star Predator 
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post #4 of 7
They have a G.Skill 1600 CL9 2x4GB kit for $75 right now after promo cheaper and woulda beat the zounds ouf of that generic kit... which is, sadly, running at the correct settings (667Mhz clock x dual data rate [data transmitted on rising/falling edges] = 1333Mhz effective/theoretical clock)
post #5 of 7
Thread Starter 
well the 8gb of corsair cost me $90 and are $70 after MIR. They got good reviews, which is why I went with them.

And thank you for clearing that up with the frequency, I'm still learning all of the technical stuff.

As for lowering the timings. how do I do that? do I just go into the bios and change them to lower numbers manually? How do I know what settings to try? I have never done anything with RAM before and am not even sure where to start.

would changing the timings make a big improvement? And what do the different numbers mean?

please help.
My System
(19 items)
 
  
CPUMotherboardGraphicsRAM
FX 8350 Asus Crosshair V Formula EVGA GTX 770 SC ACX 8Gb Corsair Vengeance Pro 1866 
Hard DriveHard DriveHard DriveHard Drive
Plextor M5S 128Gb(OS) Plextor M5S 256Gb(RAID0) Plextor M5S 256Gb(RAID0) Western Digital Cavair Green 2Tb 
Optical DriveCoolingOSMonitor
ASUS 24x DVD RW Corsair H80i Windows 7 64-bit LG 24MP56HQ-P IPS 
MonitorKeyboardPowerCase
Samsung SyncMaster B2230 Corsair K70 Corsair TX650 V2 Cooler Master CM Storm Trooper 
MouseAudio
Razer DeathAdder 3.5G Panasonic 500w stereo 
  hide details  
Reply
My System
(19 items)
 
  
CPUMotherboardGraphicsRAM
FX 8350 Asus Crosshair V Formula EVGA GTX 770 SC ACX 8Gb Corsair Vengeance Pro 1866 
Hard DriveHard DriveHard DriveHard Drive
Plextor M5S 128Gb(OS) Plextor M5S 256Gb(RAID0) Plextor M5S 256Gb(RAID0) Western Digital Cavair Green 2Tb 
Optical DriveCoolingOSMonitor
ASUS 24x DVD RW Corsair H80i Windows 7 64-bit LG 24MP56HQ-P IPS 
MonitorKeyboardPowerCase
Samsung SyncMaster B2230 Corsair K70 Corsair TX650 V2 Cooler Master CM Storm Trooper 
MouseAudio
Razer DeathAdder 3.5G Panasonic 500w stereo 
  hide details  
Reply
post #6 of 7
Well, that sucks. At $90 you could've gotten a 1600 CL9 kit regular price (though depending on kit it might not have had the rebate). That's a pretty high-priced generic kit, even for 2x4GB (where generic 1333 CL9 kits still often outvalue 1600 kits)

You're already at rated. As for lowering timings past rated settings... see how far you can go. Take it down in steps, i.e. 9-9-9, 8-9-8, 7-9-7... most ICs hate high tRCD but it can depend. You can try bumping voltage too to 1.65V and see if that helps. 4GB generic 1333 CL9 DIMMs aren't known to overclock very well (actually not many 4GB DIMMs overclock well, since the ICs aren't as developed; was the same case with DDR2 and 2GB DIMMs)
post #7 of 7
Why is everyone talking about generic RAm kits. The OP has corsair Ram.

Op you can go into bios and look under AI tweaker there is a setting called memory timings.

Lower the values as XD1771 has suggested. They will be set at Auto as a default, so manually change them.

use Prime95 Blend test to stress test the new settings.
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