Hello, friends!
I want to share with you my ideas and developments, to get feedback or even help!
The essence of the project is to create a universal platform for PCI-E riser, which allows to use it with various devices - from nettops, laptops to stationary PCs.
Local page devoted to development: https://vk.com/x4p_riser
Proceeding from this, the following requirements were formulated:
- Compactness
- External power 12v (with dc-dc 3.3v)
• Ability to use both ATX power supplies with autostart when you turn on the main device (PC), and 12v AC-DC
- Detachable connectors for connection to PCI-E x1, x4, x8, x16, miniPCI-E, M2 ...
More about the implementation approach
-Using in the riser only data lines, clock signals, PERST, WAKE and + 3.3v as external power management. The remaining lines are not critical.
-Interface cable - micro coaxial or twin-axial cable assembly with connectors I-PEX Cabline VS 30pin 0.5mm pitch
-Multifunctionality of ATX power connector (8pin pci-e)
1. Input connection using pci-e 6pin connector (autostart not supported)
2. Input connection using the 8pin pci-e adapter on the 4pin + ATX 20pin CPU (the touch-sensitive 4th pin through the transistor is closed in. The transistor control will allow to realize autostart on a separate PSU)
3. Output (up to 75W) 6pin pcie connection when using 12v AC-DC via 5.5 * 2.5 connector - will allow you to connect video cards with external power supply with a total power consumption up to 150w (maximum power limit due to the connector and mosfet as a key)
At the moment, the components for the main module are selected and placed, and the complement is acquired:
It is necessary:
- Make the final layout of the main module and the separable connectors for different interfaces
- To choose a manufacturer for making cables according to my schemes (negotiations are already under way, I hope for a positive result and a reasonable price)
- Collect money to buy missing components, order cables, order printed boards)))
- Build and test!
I await your comments!
And sorry for my English)
I want to share with you my ideas and developments, to get feedback or even help!
The essence of the project is to create a universal platform for PCI-E riser, which allows to use it with various devices - from nettops, laptops to stationary PCs.
Local page devoted to development: https://vk.com/x4p_riser
Proceeding from this, the following requirements were formulated:
- Compactness
- External power 12v (with dc-dc 3.3v)
• Ability to use both ATX power supplies with autostart when you turn on the main device (PC), and 12v AC-DC
- Detachable connectors for connection to PCI-E x1, x4, x8, x16, miniPCI-E, M2 ...
More about the implementation approach
-Using in the riser only data lines, clock signals, PERST, WAKE and + 3.3v as external power management. The remaining lines are not critical.
-Interface cable - micro coaxial or twin-axial cable assembly with connectors I-PEX Cabline VS 30pin 0.5mm pitch
-Multifunctionality of ATX power connector (8pin pci-e)
1. Input connection using pci-e 6pin connector (autostart not supported)
2. Input connection using the 8pin pci-e adapter on the 4pin + ATX 20pin CPU (the touch-sensitive 4th pin through the transistor is closed in. The transistor control will allow to realize autostart on a separate PSU)
3. Output (up to 75W) 6pin pcie connection when using 12v AC-DC via 5.5 * 2.5 connector - will allow you to connect video cards with external power supply with a total power consumption up to 150w (maximum power limit due to the connector and mosfet as a key)
![](/forum/proxy.php?image=https%3A%2F%2Fwww.dropbox.com%2Fs%2Fy0a1e4djqw7xm08%2FNy7vKa4Zz2M.jpg%3Fdl%3D1&hash=9bbea9e794ad44a4d15843c9283328ef)
At the moment, the components for the main module are selected and placed, and the complement is acquired:
![](/forum/proxy.php?image=https%3A%2F%2Fwww.dropbox.com%2Fs%2Fltbarsy1dds779p%2FLHS8ZB46l-Q.jpg%3Fdl%3D1&hash=1fd1cd87ea76231dd287e5dcf99d9c55)
![](/forum/proxy.php?image=http%3A%2F%2Fimages.vfl.ru%2Fii%2F1514091639%2Fe25af4fd%2F19898149_m.png&hash=8b42a79d6e2a51369f721e9035f98bfd)
![](/forum/proxy.php?image=https%3A%2F%2Fwww.dropbox.com%2Fs%2Fz19zr678cbqdd7y%2FPASqSuJivYQ.jpg%3Fdl%3D1&hash=c78183494b169b86b01c9b93896659ca)
![](/forum/proxy.php?image=http%3A%2F%2Fimages.vfl.ru%2Fii%2F1514091632%2Fb4f259ec%2F19898146_m.png&hash=d24620d11bae5564e4272b8efd12532b)
![](/forum/proxy.php?image=http%3A%2F%2Fimages.vfl.ru%2Fii%2F1514091634%2F42183b34%2F19898147_m.png&hash=5604444b209dfb20b96f9731274a0e37)
![](/forum/proxy.php?image=http%3A%2F%2Fimages.vfl.ru%2Fii%2F1514091637%2Fb444fe97%2F19898148_m.png&hash=c422c1cbd5008d0874c5bb91ee95fcca)
It is necessary:
- Make the final layout of the main module and the separable connectors for different interfaces
- To choose a manufacturer for making cables according to my schemes (negotiations are already under way, I hope for a positive result and a reasonable price)
- Collect money to buy missing components, order cables, order printed boards)))
- Build and test!
I await your comments!
And sorry for my English)
Last edited: