before you have come up with all the Chinese, but much cheaper. Look at the big Chinese websites. I think even you can make a batch order with a factory from China, it will be much cheaper than invent their own.
Topic: PCI-e riser schematic? (Read 379 times)
Again apologies for the bump of this old thread.
I found an open source schematic for a pcie riser that provides full x16 bandwidth in 4 connectors with x4 lanes each. Link if you are interested:
https://github.com/kotproger/CPR
I found an open source schematic for a pcie riser that provides full x16 bandwidth in 4 connectors with x4 lanes each. Link if you are interested:
https://github.com/kotproger/CPR
Hi;
Why are you sending a message about an old topic opened years ago? Isn't there enough old and wrong information around?
Kind regards
Why are you sending a message about an old topic opened years ago? Isn't there enough old and wrong information around?
Kind regards
More specifically, it seems about 20% of these risers are DOA (lol... China)
Umm ... I've seen a less than 2% failure rate in the over 3k risers purchased to dateQuote
any of those risers that you buy for like $8 each
If you're buying em at $8 no wonder you're stuck with swampland
More specifically, it seems about 20% of these risers are DOA (lol... China)
Umm ... I've seen a less than 2% failure rate in the over 3k risers purchased to dateQuote
any of those risers that you buy for like $8 each
If you're buying em at $8 no wonder you're stuck with swampland
Guys, its 2019 already. If you are still using risers you are way behind the time.
Riserless MB eliminate about 80-90% of your problems right off the bat.
Plus a riser is a 2 layer board, you can easily trace a schematic in about 20 min if you really wanted too.
Riserless MB eliminate about 80-90% of your problems right off the bat.
Plus a riser is a 2 layer board, you can easily trace a schematic in about 20 min if you really wanted too.
China has already come up with everything possible to connect a lot of video cards, look at ebay there are a lot of different products and offers.
-snip-
(Sorry for the bump, Smoke doesn't allow newbie pms)
Hey Smoke,
Was wondering if you ever found/made a good pcie riser schematic. I'm looking for a beefed up riser that has x16 bandwidth and isolates power to at least 2x 6pin connectors. I looked around, but I haven't had any luck so far, probably have to make custom pcb and/or solder it myself. You mentioned wanting to experiment with different cables and various improvements on the design, so I thought I'd check if anything came of it.
Thanks for your time.
you can't improve the thing significantly anyway plus they are 5 bucks.
Plus if you are just going to copy someones your not making crap, you are copying it. You should know, and have design and board level experience and anyone that has that knows better than to make another 3-5 dollar product that's not tested and has to go through all these approvals to even be able to be sold.
Long story short if you really want to do it:
buy one and trace it. They are 2 layer maybe 4 max.
Plus if you are just going to copy someones your not making crap, you are copying it. You should know, and have design and board level experience and anyone that has that knows better than to make another 3-5 dollar product that's not tested and has to go through all these approvals to even be able to be sold.
Long story short if you really want to do it:
buy one and trace it. They are 2 layer maybe 4 max.
Well, thanks for the non-answer and all-around discouragement... I guess.
I'm an EE and though my specialty is switchmode power supplies, I know my way around a high speed data bus or two. I am well aware that I could spend hours tracing out the circuit boards but that would be pretty stupid if there are schematics already available. There isn't a lot of uniqueness to the circuit, anyway; it's the implementation that could use some improvement, I feel. More specifically, it seems about 20% of these risers are DOA (lol... China) and a lot of people complain about a loss of hashrate when the board moves from a x16 slot to a x1 riser; I suspect that the USB cable kludge is the culprit so want to try a few other controlled-impedance cable systems out (ethernet interconnects are surprisingly good, for one example, but FFC ribbon cable might be an excellent and very low profile contender).
I am well aware of the technical need for FCC part 15 approval, but if you think any of those risers that you buy for like $8 each actually went through the certification process I got some prime Florida swampland to sell you.
you can't improve the thing significantly anyway plus they are 5 bucks.
Plus if you are just going to copy someones your not making crap, you are copying it. You should know, and have design and board level experience and anyone that has that knows better than to make another 3-5 dollar product that's not tested and has to go through all these approvals to even be able to be sold.
Long story short if you really want to do it:
buy one and trace it. They are 2 layer maybe 4 max.
Plus if you are just going to copy someones your not making crap, you are copying it. You should know, and have design and board level experience and anyone that has that knows better than to make another 3-5 dollar product that's not tested and has to go through all these approvals to even be able to be sold.
Long story short if you really want to do it:
buy one and trace it. They are 2 layer maybe 4 max.
Is there an actual schematic for a PCI-e riser floating around somewhere? My Google-Fu is failing me at the moment... I am contemplating making my own (yes, I realize this is a dubious venture).
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