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Precision 5820 Memory not running at 2667 MHz

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I purchased some Corsair Vengeance LPX 3000MHz (4x16GB) to upgrade my 5820 tower.  According to the memory configuration the memory should be accessed at 2667MHz.  But when I boot the server and check the BIOS, the frequency is set to 2133MHz.  I don't see any settings related to XMP in the BIOS.  I contacted Dell and was told that the memory speed was "auto detected" and there was no way to set it.

Should I have purchased the LPX 2667MHz memory instead?  I grabbed the 3000 because it only cost 1 dollar more.  Alternatively, are there recommended memory modules known to work at 2667 with the 5820?  The memory from Dell is extremely expensive.

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2 Bronze

Re: No response received

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Just to follow up.  My 2666MHz memory arrived and I just tried it out.  It has four timings in the SPD (from CPU-Z):

2384, 2526, and 2 for 2666MHz (different latencies).  The BIOS picked one of the latter and now reports the expected 2667 MHz frequency.  All is good.

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No response received

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We tried reaching you on a private message but did not receive a response. Please feel free to reply to the private message whenever you are available.


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2 Bronze

Re: No response received

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Sent, sorry for the delay

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1 Copper

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Hi,

I am facing the same problem. Upgraded to 16X4GB 3200MHz DDR4, but only found out that the system runs at 2133MHz.

Have you figured out the problem?

Thanks!

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2 Bronze

Re: No response received

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I believe I have figured it out after some research.  The workstation doesn't have a way to select an XMP profile or overclock (manually set timings/voltage) in the BIOS.  Instead, it reads the SPD and picks a profile from there.  I ran CPU-Z and found out that the 3000MHz memory I purchased had four profiles - three at 2133Mhz and one at 3000Mhz.  The MB only supports 2667, so it picked one of the 2133 profiles to use.

So I returned the memory and purchased some 2667 memory.  Hopefully that will solve the issue.

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Community Manager
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Re: No response received

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rusty48,
 
Thank you for the update.
 
 

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2 Bronze

Re: No response received

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Just to follow up.  My 2666MHz memory arrived and I just tried it out.  It has four timings in the SPD (from CPU-Z):

2384, 2526, and 2 for 2666MHz (different latencies).  The BIOS picked one of the latter and now reports the expected 2667 MHz frequency.  All is good.

View solution in original post

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Re: No response received

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I'm glad to hear that. Thank you for keeping us updated. 

Geoffrey


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