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leowonderful
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February 05, 2017, 11:43:53 PM |
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I heard those hubs broke pretty easily some time ago (don't remember when or where I heard that). Good to know that someone on the forum runs one of these hubs, once I get a few 2pacs and bit fury sticks I might consider this or the superbpag. Voltage is a little low on each port (5v600ma) compared to the superbpag but otherwise good; these also sell on eBay.
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hurricandave
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February 05, 2017, 11:47:02 PM |
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I've been running that particular A-300 non-stop since U2's were $75 a PIECE!!!
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leowonderful
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February 05, 2017, 11:50:32 PM |
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I've been running that particular A-300 non-stop since U2's were $75 a PIECE!!!
I can't even remember when U2s were still available, I started mining actively back when the U3 was still on sale and when you could easily get a Block Erupter for five bucks and shipping. Those were the old days.. Looks like a nice hub, illl consider it once I get my sticks ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
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murasame2003
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February 06, 2017, 03:40:07 PM |
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You should be able to. Superbpaq supplies 2A for each port and works well with RPi. You can push an original compac to somewhere around 340Mhz under 1.95A.
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CADuke
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February 09, 2017, 02:36:32 AM |
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Put the USB 3.0 hub into a non powered usb 2.0 hub. That is how I go my Orico A3H10 BK to work. Could not plug it into my powered Orico USB P10-U2-PK
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gt_addict
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February 09, 2017, 07:38:50 PM |
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Has anyone managed to modify an existing powered hub so it can support more power?
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**SUPPORT SIDEHACK** Miner Development Donations to: 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
Donations/Tips to:- 1GTADDicTXD1uachKKgW24DZDxDGhSMdRa
Join Bitconnect: https://bitconnect.co/?ref=gtaddict
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alh
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February 10, 2017, 12:23:50 AM |
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Has anyone managed to modify an existing powered hub so it can support more power?
I know I saw one picture of a Hub that had been opened up, and and additional +5V and GND wire had been soldered on top of the thin trace already present on the PC board. The idea is that the thin trace would have too much resistance and would cause a larger voltage drop when more current is drawn. There were a lot of posts on this in the latter half of 2013 and early 2014 when USB miners were popular.
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gt_addict
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February 10, 2017, 05:01:16 PM |
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Has anyone managed to modify an existing powered hub so it can support more power?
I know I saw one picture of a Hub that had been opened up, and and additional +5V and GND wire had been soldered on top of the thin trace already present on the PC board. The idea is that the thin trace would have too much resistance and would cause a larger voltage drop when more current is drawn. There were a lot of posts on this in the latter half of 2013 and early 2014 when USB miners were popular. I think thats what ive already seen. It was to a standard hub which had the unsusd +5v and GND. Just wondering if you could modifiy an existing powered hub to "beef it up" powerwise. Where woild the most likely bottlenecks be to stop it drawing the maximum current possible?
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**SUPPORT SIDEHACK** Miner Development Donations to: 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
Donations/Tips to:- 1GTADDicTXD1uachKKgW24DZDxDGhSMdRa
Join Bitconnect: https://bitconnect.co/?ref=gtaddict
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btckess
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February 13, 2017, 03:59:23 PM Last edit: February 13, 2017, 04:29:52 PM by btckess |
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My attempt at upping the power to my soon to be arriving 2pacs on the cheap. I'm reusing stuff I already had on hand. I am waiting on my Block Erupters to sell on eBay to reclaim a 5v 40 amp led "meanwell" power supply. My plan is to use Monoprice usb extenders and some 18GA wire to hook up the power of the meanwell and data of a cheap 10 port hub (also hooked up to the meanwell) I hope to get these guys running at 3 to 3.5 amps per. I slice the jacket and remove the red and black wire (verifying that they are the +5 and ground on the usb ports) Cut the red wire and cap the side coming from the usb hub. Solder in the new 18GA wire +5 and ground cables. Verify no shorts and wrap the solder joints on opposite sides of the usb cable. https://i.imgur.com/fMiqMC5.pnghttps://i.imgur.com/HFSVzpa.pngI cut some 3/4 wood dowel and using a saw and 1/2 drill bit made usb "Holders" they are spaced 2" apart to allow cooling. I plan on attaching these to the board that my power supply is mounted to and using hot glue attaching the usb "holders" to the wood dowel. And then attaching cooling fans. Will Post more pictures when I get it completed. Just wanted to throw this out in case it helps others.
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murasame2003
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February 13, 2017, 05:52:43 PM |
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My attempt at upping the power to my soon to be arriving 2pacs on the cheap. I'm reusing stuff I already had on hand. I am waiting on my Block Erupters to sell on eBay to reclaim a 5v 40 amp led "meanwell" power supply. My plan is to use Monoprice usb extenders and some 18GA wire to hook up the power of the meanwell and data of a cheap 10 port hub (also hooked up to the meanwell) I hope to get these guys running at 3 to 3.5 amps per. I slice the jacket and remove the red and black wire (verifying that they are the +5 and ground on the usb ports) Cut the red wire and cap the side coming from the usb hub. Solder in the new 18GA wire +5 and ground cables. Verify no shorts and wrap the solder joints on opposite sides of the usb cable. https://i.imgur.com/fMiqMC5.pnghttps://i.imgur.com/HFSVzpa.pngI cut some 3/4 wood dowel and using a saw and 1/2 drill bit made usb "Holders" they are spaced 2" apart to allow cooling. I plan on attaching these to the board that my power supply is mounted to and using hot glue attaching the usb "holders" to the wood dowel. And then attaching cooling fans. Will Post more pictures when I get it completed. Just wanted to throw this out in case it helps others. Looking forward to updates and pictures of your setup.
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ZACHM
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February 13, 2017, 06:31:21 PM |
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Works fine, but won't work with RPi, I would like to switch over to a different hub that I can run on the RPi. I currently have four compacs running at 275mhz and I have two 2Pacs ordered.
Put the USB 3.0 hub into a non powered usb 2.0 hub. That is how I go my Orico A3H10 BK to work. Could not plug it into my powered Orico USB P10-U2-PK Awesome! Thanks for that, I remember reading that somewhere before but forgot all about it.
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philipma1957 (OP)
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'The right to privacy matters'
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February 13, 2017, 06:41:46 PM |
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My attempt at upping the power to my soon to be arriving 2pacs on the cheap. I'm reusing stuff I already had on hand. I am waiting on my Block Erupters to sell on eBay to reclaim a 5v 40 amp led "meanwell" power supply. My plan is to use Monoprice usb extenders and some 18GA wire to hook up the power of the meanwell and data of a cheap 10 port hub (also hooked up to the meanwell) I hope to get these guys running at 3 to 3.5 amps per. I slice the jacket and remove the red and black wire (verifying that they are the +5 and ground on the usb ports) Cut the red wire and cap the side coming from the usb hub. Solder in the new 18GA wire +5 and ground cables. Verify no shorts and wrap the solder joints on opposite sides of the usb cable. ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FfMiqMC5.png&t=665&c=EOACL-uMiEhpzw) ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FHFSVzpa.png&t=665&c=fDi6VAyzAELVrw) I cut some 3/4 wood dowel and using a saw and 1/2 drill bit made usb "Holders" they are spaced 2" apart to allow cooling. I plan on attaching these to the board that my power supply is mounted to and using hot glue attaching the usb "holders" to the wood dowel. And then attaching cooling fans. Will Post more pictures when I get it completed. Just wanted to throw this out in case it helps others. Nice work
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btckess
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February 14, 2017, 04:27:00 PM |
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They were the "gold" series of usb extenders. 24GA if i can remember. They don't have them on the site anymore. I am pretty sure they are under rated for the job at hand. but I'm going try my luck. Like you said it's a short run and my worry is more of the usb connector than the wiring. I thought about building my own connections but couldn't work out something robust enough. I may have to if these fry. ![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
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ZACHM
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February 14, 2017, 04:31:44 PM |
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Yeah, I think I am going to try to keep things less than 3 amps. I don't think the little extra hashrate will make up for the additional cost to construct something that can handle more than 3 amps. Keep us updated. Hoping to get my 2Pacs by the end of the week. ![Cool](https://bitcointalk.org/Smileys/default/cool.gif)
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