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RAM Speed on Newly Installed RAM in Dell Precision 3660
I've installed 4x Adata 16GB 4800Mhz DDR5 RAM modules in a Dell Precision 3660. The RAM model is AD5U480016G. The PC has a 12th gen i7, 512GB SSD and it initially came with 2x 8GB modules. After installing the 4x 16GB modules, I went into the BIOS and saw the RAM was only running at 2000Mhz. I cannot see any option of how to change it to the BIOS. Does anyone know what can be done?
Thanks
bradthetechnut
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August 3rd, 2024 03:02
Max supported speed with the 4x16GB configuration is 4000mhz. From the 3660 Tech Guide:
BIOS may be only showing half the speed the RAM is operating at. Download CPU-Z from TechPowerUp. (Google "download CPU-Z") CPU-Z shows half the speed RAM is operating at. So if it shows 2000mhz, it's operating at 4000mhz.
I attached the 3660 Tech Guide and Spec Sheet below.
2 Attachments
precision-3660-spec-sheet.pdf
precision-3660t-technical-guidebook.pdf
(edited)