RAM IS 2400mhz PC sees 1333mhz

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Mauwie001

Honorable
Aug 24, 2013
49
0
10,530
Hey people of Toms.

I have 2x4 Corsair Vengeance Pro @ 2400mhz altough it's ment to say at the control panel that it's 2400mhz, altough it doesn't say that's 2400 but 1333 mhz. The frustrating thing is that I've paid the full price without having the full deal.

My specs are :

CPU : i7 4790K @ 4ghz
GPU : Geforce GTX 760 TwinFrozr edition
RAM : Corsair Vengeance Pro Series
Motherboard : Asus Z97P
OS : Windows 10

Hopefully u guys can help me fix this problem ;)
 
Solution
photonboy


Yep.
More advanced->

1. Update BIOS for motherboard of newer exists
2. Select "XMP" in BIOS
3. Verify CPU set to 4GHz, Turbo is enabled
4. Verify DDR3 memory specifies 2400MHz

5. SAVE
6. boot to MEMTEST (may need to change boot order in BIOS) www.memtest.org then run a QUICK PASS now for two minutes to check for errors
7. in Windows run CPU diagnostic https://downloadcenter.intel.com/download/19792
8. Observe CPU frequency in Task Manager (right-click Start Menu)-> Performance-> CPU (should be roughly 4.4GHz under "Speed" below the graph or graphs once the Intel diagnostic...
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photonboy

photonboy

Titan
Jun 20, 2006
21,567
13
85,015


Yep.
More advanced->

1. Update BIOS for motherboard of newer exists
2. Select "XMP" in BIOS
3. Verify CPU set to 4GHz, Turbo is enabled
4. Verify DDR3 memory specifies 2400MHz

5. SAVE
6. boot to MEMTEST (may need to change boot order in BIOS) www.memtest.org then run a QUICK PASS now for two minutes to check for errors
7. in Windows run CPU diagnostic https://downloadcenter.intel.com/download/19792
8. Observe CPU frequency in Task Manager (right-click Start Menu)-> Performance-> CPU (should be roughly 4.4GHz under "Speed" below the graph or graphs once the Intel diagnostic gets started.)

9. Memory "Speed" should be under graph in Memory section above "Slots used"
10. Run a FULL PASS in Memtest (roughly 30min for 8GB) to complete.

Other:
Use Coretemp or similar to observe core temp under full CPU load, and also adjust the CPU and Case fan speed to optimize the noise vs cooling ratio. For example, if you have a great CPU cooler you may set the fan to 20% then ramp up starting at 40degC. For lesser coolers may want to start at 40% full speed or similar.

Fan control software is usually included in motherboard support page but may be part of a larger package. For Windows 8 and then 10 on my Z77 Asus I had to use the Windows 7 "Thermal Radar" package since I could not find newer fan control software despite Windows 8 software being listed. Just FYI.

*I believe 77degC is the Intel recommended max for optimal lifespan but throttling doesn't actually occur until closer to 100degC. Stress benchmarks don't indicate real-life usage however I suggest max 85degC under Prime95 as a good guide.
 
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