Memory not running right speed... why?

I bought some RAM from Corsair a week and a half ago and when I installed it it was clocked at 1333, when it was sold as 1600.

in the system BIOS when I changed it to 1600 from auto it caused issues and required resetting the BIOS. I managed to fix that issue, but my question is why? Is it bad? Did Corsair send us under clocked RAM? Is there something I could do to fix it in the BIOS that will not mess the system up?

- (Bought) Intel Core i7-2600K Sandy Bridge 3.4GHz (3.8GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics
- ASUS SABERTOOTH Z77 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
- DDR 3 16 GB 1600 mhz (Corsair Brand)
- Black Enermax Hoplite SECC ATX Mid Tower Computer Case ECA3220, w/ Side Window and 12cm Blue/Red Combo-LED .
- CORSAIR TX series 750W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Active PFC Power Supply
- COOLER MASTER Hyper 212 Plus RR-B10-212P-G1 "Heatpipe Direct Contact" Long Life Sleeve 120mm CPU Cooler Compatible with Intel 1155
- Seagate 1TB Serial ATA/300 Hard Drive
- Black LG UH12LS29 Internal SATA 12x LightScribe Blu-ray Optical Drive, w/ 3D Playback and M-DISC Support, 16x DVD+R/-R, 4MB Cache. OEM
- (Bought) GIGABYTE GV-N670OC-2GD GeForce GTX 670 4GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support Video Card
- (BOUGHT) Corsair Force Series GS 2.5in 360GB SATA III 6Gb/s Internal Solid State Drive (SSD), Model: CSSD-F360GBGS-BK. ds-dh
4 answers Last reply
More about memory running speed
  1. It's the same for all RAMs. They advertise the XMP settings, not the default ones (SPD).
    Try setting in BIOS the AI Overclock Tuner to XMP.
  2. I tried setting the BIOS setting from auto to 1600. It caused the machine to be unstable. It would not even boot to BIOS. IT would start to power up then power down before even getting into BIOS.
  3. What happens if you enable the XMP?
  4. To 1600? The memory timing should look something like this: 9-9-9-18. It should be printed on the side of the Ram module. You should set the bios timeing to those numbers unless you are overclocking. Then verify that your motherboard and that specific Ram are compatible. Should be in the MB users manual.
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