Gskill ddr3 trident 2666 overclock problem

Apr 27, 2018
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Computer Spec:

Zotac z77-tx bios A22P0 March/2013
CPU: 3770k
Ram: G.SKill Trident X 2666 8gb x2 @ 1600 9-9-9-24-1N
SSD: Samsung EVO 850 1TB



I just got a g.skill trident X ram certified at 2666 last night and I was super excited about getting it to run at 2666. From the motherboard's manual, the motherboard is certified to run at 1333, 1600 and 2133. It also states overclockable to 2666. I first did a hard reset on my bios by removing the CMOS and putting it back in. I went in to bios and I enabled XMP profile setting and the computer failed to POST. At first, I thought it was the voltage setting, so I put it back to 1600 9-9-9-24-1n (this is stable) and only increased the voltage to 1.65v. Afterwards, I reset my computer and went back into the bios and then enabled XMP again. I failed to post. I went into the bios again I set everything manually, voltage, frequency and timing (according to what AIDA 64 told me about my ram's XMP) It failed to post again. After that, I tried every single setting above 1600 and it all failed to post! I can only boot at 1333 or 1600. I mean what the heck! Even the box clearly says 2133 supported! I wanted to increase the IMC voltage, but either I can't find it or its not in the bios. Help me~~!!! I want to run this at 2666. I also can't find VTT as well. Please help me~
 

Masoner

Honorable
Jul 19, 2013
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Can you give a link to the exact ram you bought, like from newegg or Amazong..etc

There could be a small compatibility issue you could have missed.

Also I would imagine that if your Motherboards bios is from 2013 it would most definitively need to be updated before attempting a new OC RAM that is of course if its really compatible.
 
Apr 27, 2018
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Motherboard Properties
Motherboard ID 63-0100-000001-00101111-122211-Chipset$A229P011_BIOS DATE: 04/26/13 11:36:20 VER: 04.06.05
Motherboard Name Zotac Z77-ITX WiFi (Z77ITX-A-E)

Front Side Bus Properties
Bus Type BCLK
Real Clock 100 MHz
Effective Clock 100 MHz

Module Name G Skill TridentX F3-2666C12-8GTXD
Serial Number None
Module Size 8 GB (2 ranks, 8 banks)
Module Type Unbuffered DIMM
Memory Type DDR3 SDRAM
Memory Speed DDR3-1333 (667 MHz)
Module Width 64 bit
Module Voltage 1.5 V
Error Detection Method None
Refresh Rate Normal (7.8 us)
DRAM Manufacturer G Skill

Memory Timings
@ 666 MHz 10-9-9-24 (CL-RCD-RP-RAS) / 33-174-4-10-5-5-20 (RC-RFC-RRD-WR-WTR-RTP-FAW)
@ 666 MHz 9-9-9-24 (CL-RCD-RP-RAS) / 33-174-4-10-5-5-20 (RC-RFC-RRD-WR-WTR-RTP-FAW)
@ 609 MHz 8-8-8-22 (CL-RCD-RP-RAS) / 30-159-4-10-5-5-19 (RC-RFC-RRD-WR-WTR-RTP-FAW)
@ 533 MHz 7-7-7-20 (CL-RCD-RP-RAS) / 27-139-4-8-4-4-16 (RC-RFC-RRD-WR-WTR-RTP-FAW)
@ 457 MHz 6-6-6-17 (CL-RCD-RP-RAS) / 23-119-3-7-4-4-14 (RC-RFC-RRD-WR-WTR-RTP-FAW)
@ 380 MHz 5-5-5-14 (CL-RCD-RP-RAS) / 19-100-3-6-3-3-12 (RC-RFC-RRD-WR-WTR-RTP-FAW)

Extreme Memory Profile v1.3
Profile Name Enthusiast (Certified)
Memory Speed DDR3-2666 (1333 MHz)
Voltage 1.65 V
Refresh Period (tREF) 7.9 us
Recommended DIMMs Per Channel 2
@ 1333 MHz 12-13-13-35 (CL-RCD-RP-RAS) / 48-347-3-7-16-10-10-28-8 (RC-RFC-CR-RRD-WR-WTR-RTP-FAW-WCL)

March 2013 was the last update and the bios update was discontinued
 
Apr 27, 2018
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I finally got it to work. It is really weird but increasing my tfaw or FAW to 32 allowed my ram to run at 2133.
current stable setting: @2133 10-11-11-28-1N RFC 255 and TFAW 32 1.65V
 

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