memory - Why aren't there PCIe RAM expansions? - Super User
2013年2月4日 · The most recent incarnation of PCI RAM cards was produced by Gigabyte in 2005 and 2006 under the names i-RAM and GC-RAMDISK, respectively. They supported 4 …
Is there a modern ram drive hardware (pcie memory drive)?
2019年12月9日 · Last hardware board for consumers I found was Gigabyte GC-RAMDISK i-RAM circa 2006. These fell out of favor as they require battery backup like array cache modules, …
memory - Does RAM over PCIe exists? - Super User
2020年12月10日 · This appears in lspci on my Dell XPS 13 9310: 0000:00:14.2 RAM memory: Intel Corporation Device a0ef (rev 20) Does RAM work over PCIe now?
ssd - Why not use PCI-E M.2 space as RAM? - Super User
2021年12月5日 · The M.2 slot only supports up to x4 PCI-E lanes, which, with the PCI-E 4.0 standard, limits the bandwidth to ~7.9 GB/s and the far future PCI-E 5.0 standard to a likely …
What are PCI and PCI Express slots used for? - Super User
2012年8月1日 · PCI is still very common and included in motherboards. Older slot types include EISA (black) and AGP (brown - for graphics cards only). No one makes RAM for PCI/PCI-E …
How are PCI/PCIe BARs configured to access memory on the device?
2012年10月22日 · Your interpretation of the BAR setup is correct. Then how does it differ. The device's on board memory/registers usually is a special RAM, it may be bi-port RAM (when …
Do modern motherboards allow a PCI-E device to access ram …
2015年10月18日 · That is, one PCI(e) device can directly access the memory or registers of another PCI(e) device, or main system ram, without regard to where it is located. The PCI(e) …
Clarification of the difference between PCI memory addressing …
That if a PCI device wishes to transfer data to a memory address, that address must exist in actual system RAM (and is allocated during PCI configuration) and not virtual memory. So if a …
PCI Express - Clarification about BAR, Memory addressing and …
I understood that a PCI Express endpoint device may have some memory BAR mapped in the system memory (is it always RAM the system memory we are talking about?). I need to …
bios - PCI BAR memory addresses - Super User
It doesn't have to be located in physical RAM, and for I/O devices it is not usually located in RAM. It just uses physical RAM addresses, addresses that then cannot be used for anything else …