DELL

http://www.dell.com/support/article/hk/zh/hkbsd1/sln308587/microprocessor-side-channel-vulnerabilities-cve-2017-5715-cve-2017-5753-cve-2017-5754-impact-on-dell-products?lang=en

http://www.dell.com/support/article/hk/zh/hkbsd1/sln308588/microprocessor-side-channel-vulnerabilities-cve-2017-5715-cve-2017-5753-cve-2017-5754-impact-on-dell-emc-products-dell-enterprise-servers-storage-and-networking-?lang=en

https://www.dell.com/support/article/hk/zh/hkbsd1/sln308615/meltdown-and-spectre-impact-on-dell-data-security?lang=en

Lenovo

https://support.lenovo.com/hk/en/solutions/len-18282

HP

https://www.hpe.com/us/en/services/security-vulnerability.html#accordion-accordioncontainerco-0

ASUS

https://www.asus.com/News/V5urzYAT6myCC1o2

MSI

https://www.msi.com/news/detail/QBtu17JtU-SNqngsOFiiFbZZE0aYFIicVzCJZ7BDuyfHcZnxQNrE3uwkiUor437JtN5UyEv_PKbKx1DpEUNxNA~~

Gigabyte

https://www.gigabyte.com/Press/News/1586

Acer

https://us.answers.acer.com/app/answers/detail/a_id/53104/~/meltdown-and-spectre-security-vulnerabilities

Asrock

http://www.asrock.com/support/index.asp?cat=BIOS

Reference:

https://www.techrepublic.com/article/dellemc-ibm-and-other-storage-companies-chime-in-on-spectre-and-meltdown/