All Questions
7
questions
2
votes
1
answer
1k
views
Performance difference when comparing PCIe DMA vs. MMIO for same data access size
Some PCIe devices can map their own device memory region fully to contiguous host physical memory address space through a feature called PCIe Resizable BAR (base address register), which makes it ...
- 31
2
votes
2
answers
795
views
How important is a PCIE_PEG_TXN pin on a motherboard?
I managed to break the PCIE_PEG_TXN 2 pin on my motherboard according to this pin layout: https://sector.biz.ua/docs/lga-775-1150-1151-1156-1155-1366-2011-pinouts/s1200_1.png I am curious if it is ...
- 223
2
votes
1
answer
2k
views
Confirm if Dell PowerEdge R720 Power port mixes pin layout/wiring of PCIE and keying/shape of CPU port
This cable 1 works fine to power a PCIE accelerator device (Intel N3000-N FGPA PAC) on Dell PowerEdge R720. The power connector that plugs into the riser seems to break power cable/port standards/...
- 21
0
votes
1
answer
119
views
How to choose between PCIE and USB3 in a CPU pin?
While looking at Validation Reference Platform for 11th Gen Intel CPU (Tiger Lake UP3), I noticed that some pins for the MCP (Multi Chip Package, which is a package that includes PCH+CPU on the same ...
- 1,067
1
vote
1
answer
780
views
Can an FPGA connected to a CPU via PCIE access peripheral devices?
Is it possible for an FPGA connected via PCIE to a CPU, to directly access peripherals (USB Ports, data, Ethernet, etc) connected to the same CPU via a chipset? I had an Intel based system in mind, ...
- 23
0
votes
2
answers
5k
views
PCI-Express Processor/Co-processor cards [closed]
I am hoping someone might be able to help:
In the days when I started with computing (C64 and later Amigas) expansion slot cards with co-processing ability were relatively common. I am looking for ...
- 109
-1
votes
1
answer
410
views
Motherboard with separate circuitry for PCIe, CPU, RAM etc [closed]
I asked this question on another forum (http://www.tomshardware.com/answers/id-1812014/motherboard-separate-circuitry-pcie-cpu-ram.html) but nobody replied yet so posting it here
I am looking for an ...
- 107