System Freeze due to RAM

Ocz technology / Ocz3x1600r2lv6gk
June 15, 2010 at 15:58:17
Specs: Windows 7 Professional (64-bit)
When the BIOS sets my RAM to 1066MHz (AUTO), my computer is stable. Yet when I set my RAM to what it is rated for (1600MHz), the system with completely freeze, causing me to have to do a hard restart and change the BIOS back to AUTO for the RAM to make the system stable.

Does anyone have a recommendations of any kind to have my RAM run at 1600MHz and continue to be stable?


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#1
June 15, 2010 at 16:07:08
Very hard to answer your question without knowing what your motherboard supports.

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#2
June 15, 2010 at 16:33:43
I apologize.
The full specs for my computer are as follows:
Intel i7-930 (2.8GHz) Quad-Core
NVIDIA GTX 470 Fermi
EVGA X58 SLI Motherboard
WD 300GB Velociraptor
RAM is as stated in the description. (3x2GB Triple Channel)
Enermax 1250W Power Supply Unit

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#3
June 15, 2010 at 17:02:57
Look at the specs for that RAM and set ALL the specs, not just the speed, including voltage. You may need to even up the voltage a little higher than 1.65V.

http://www.newegg.com/Product/Produ...

Also run memtest86 or another memory tester on the RAM.


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Related Solutions

#4
June 15, 2010 at 18:11:51
Do you by any chance have a recommendation of what the Memory SPD should be? Standard or XMP Profile 1?
Or the new DIMM Voltage? (Currently at 1.650V)
And last the DIMM DQ Vref? (Currently at +0mV)

I now have the Memory Frequency at [1600Mhz / 2:12]

I have worked with building computers for many years, but I have never bothered working with Frequency/Voltage as I never had a need for over clocking or anything of that nature.

Thank you very much for your time.


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#5
June 15, 2010 at 19:13:01
Cas Latency 8
Timing 8-8-8-24
Voltage 1.65V

I has been my experience that many times RAM will not run stable at the specified speeds and timings.


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#6
June 15, 2010 at 22:47:40
The computer isn't stable at specified speeds and timing.
Currently running Memtest86+ v4

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#7
June 16, 2010 at 02:53:46
Could disassemble the machine including taking out the mobo and reassemble out of the case checking each piece. Also make sure you have the precise number of standoffs, no more - no less, and that there is a screw for each. Too many or too few standoffs can cause a short leading to these symptoms. If each stick of RAM tests good and reassembling doesn't fix it, could be the mobo

Kristain Hayes


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#8
June 16, 2010 at 10:05:46
I had already individually tested all the parts. POST is clear. No problems. Just ran Memtest86+ v4.00 and "Pass complete, no errors, press Esc to exit"

I am at a lose. At this point I am thinking that I should:
a) RMA the RAM (Don't want to be left with an unusable computer for five days, but will if I have to)
b) Do over clocking to balance it all. (Do not really want to over clock yet with out water cooling)
c)anything you can think of


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#9
June 16, 2010 at 10:13:39
When you let the bios set the ram speed automatically, you said it was stable. If it is stable, then exactly what problems are you having? What have you set the CPU to?

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#10
June 16, 2010 at 10:43:33
The RAM speed that it is set to, when on AUTO, is 1066Mhz.
The RAM speed that it is rated for is DDR3 1600Mhz (PC3 12800).
I want the most out of my RAM, in the sense of I want to get out of it what I bought of it. I may have messed that sentence up, but I 1600Mhz, I want to get 1600Mhz.
When I set it to 1600Mhz, after a few minutes, my system will completely freeze.
My CPU is stable at standard: 2.8Ghz

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#11
June 16, 2010 at 11:35:03
Look at the link below. Your processor calls for 800/1066 RAM.

http://ark.intel.com/Product.aspx?i...


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#12
June 16, 2010 at 11:50:04
To add to the above:

Intel Core i7 Quad-core Processor
With four processing cores, the multitasking monster Quad-Core Intel Core i7 processor delivers fourfold the performance on highly-threaded applications, taking your desktop PC experience into a completely new realm of mega power. The powerful processor delivers serious performance on the ultra-demanding games of today and tomorrow. The innovative 45nm quad-core technology optimizes thermal performance for reduced power consumption and noise.

Integrated DDR3 Memory Controller

With the integrated DDR3 memory controller, the Intel Core i7 enables three channels of DDR3 1066 MHz memory, resulting in up to 25.6 GB/sec memory bandwidth. Plus the memory controller's lower latency and higher memory bandwidth delivers amazing performance for data-intensive applications.

In this case I believe the reason you would buy faster RAM than 1066 is to be able to tighten up the settings other than the frequency.

I am not up to speed on Intel boards as I don't run them so it is possible I am wrong here. Others can chime in.


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#13
June 16, 2010 at 11:52:27
Ouch. Such a small oversight. I expected Newegg to have this kind of thing on their site, my own fault for not doing any further research.

Thank you very much.

Does anyone know why the ENTIRE i7 lineup only works on 800/1066 RAM?


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#14
June 16, 2010 at 12:24:15
I might add that the RAM you have is not meeting JEDEC specs. Read the Overview in the link below. All the manufacturer is doing is juicing the chips to overclock them.

http://en.wikipedia.org/wiki/DDR3_S...


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