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Precision 5820 Memory not running at 2667 MHz
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.
rusty48
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July 2nd, 2020 15:00
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.
DELL-Cares
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July 1st, 2020 05:00
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.
rusty48
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July 1st, 2020 08:00
Sent, sorry for the delay
easytool
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July 1st, 2020 21:00
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!
DELL-Jesse L
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July 2nd, 2020 04:00
rusty48
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July 2nd, 2020 04:00
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.
DELL-Cares
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July 2nd, 2020 17:00
I'm glad to hear that. Thank you for keeping us updated.
Geoffrey