Topic: [INSTOCK in California] Selling Gridseed Asics. Ship from California. [$235] - page 3. (Read 49054 times)

PM your order number and phone number. We will take care of you. Sorry about that

I wanted to take a moment to share my feedback about Zoomhash. To give everyone background, I bought (3) 20 packs of Gridseeds from them when they first set them up.

I have had a number of issues with my purchase and I will outline those below:

• They shipped my accessories in 2 separate orders and used 2 duplicate labels for them. I had to goto USPS and pay the shipping cost for the 2nd label to pick my order up
• They shipped me accessories to only power 20 of my 60 gridseeds. They sent me more when I told them about this, but had to wait an additional 2 days.
• They shipped my 20 packs with 12v power supplies that branch off into 8 gridseed cables. Every single one of these power bricks that had the 8 way splitters has died in less than a month.
• The power bricks that have 4 way splitters are fine, but I fear that they will also die.
• They told me they were sending me PCI-E replacement cables for my gridseeds (60 of them) and only send me cables to power 36 gridseeds in total, clearly not enough for my 60.
• Of those 12 power cables, 6 of them were FEMALE MOLEX, they cannot at all plug into a PSU molex connector as those are also Female. I looked everywhere and I cannot find any Male to male molex cables to allow me to use them with my PSU. Even then, I shouldnt have to buy additional accessories when these were sold as plug and play.

On the customer service side of things, Michael has been helpful and very customer focus driven. While he was very helpful in resolving some errors, the amount of issues I have had with my $12,000+ purchase is ridiculous.

24 of my gridseeds are now down completely. I have a total of 60, 24 are out of commission due to blown 12v power bricks with less than a month on the clock. I can only hope these weak power bricks did not do any permanent lasting damage to the gridseeds by under powering them.

The 12v Power bricks that they shipped me get dangerously hot, to the point of burning my hand (I cannot keep my hand on them for more than 10 seconds). I do not think these cheap bricks are meant to run an 8 way splitter to power these.


If I have one positive comment about Zoomhash, it would be that both Richard and Michael have been very helpful, and have corrected every issue I have brought to their attention in a timely manner. They have demonstrated great customer service in regards to my situation.

I think what I am getting sick of is the sheer amount of problems I have had in general. I think that all of these problems could have been avoided by being upfront with customers ordering the 20 packs and telling them that they were splitting off of these bricks. When I ordered it was not mentioned how the devices were powered and when I asked the sales rep he didnt know. If I had known they were being powered this way I would not have ordered them. I would have ordered the 340watt PSUs that everyone else is using with open ended terminals.

Here are some pics of the cables I can't really use...

I just wanted to let everyone know that they should check their gridseed units to make sure that the heatsink actually is touching the chips.

One of my units had a heatsink that must have been machined too far down, the thermal pad wasn't even touching anything, the pad looked brand new when I opened it for voltmod.

I could easily see a flashlight through the whole unit where the heatsink would normally be touching the chips.

I had to smash the heatsink down sliding the fins between each other about 2mm and tighten the screws real good to ensure a secure contact with the chips.

Luckily, I haven't used the miners for mining SHA256, only Scrypt, so my chips didn't get damaged.

I could be wrong, but i thought max is 32 usb device for pi run stale if you dont use cpuminer. running 32 instance of cpu miner in a RPI wont be a stable IMO

Try using Cgminer, much better, image here: http://highoncoins.com/litecoin-rig/how-to-make-stackable-tower-gridseed-rig-with-raspberry-pi-pre-built-cgminer/

I can get to 10 instances before it dies.   I have 3 Pi's and a lightening asic controller in a drawer.

Of course I have 17 ZoomHash grids in a box waiting for my USB cables from monoprice (3 DOA)

I could be wrong, but i thought max is 32 usb device for pi run stale if you dont use cpuminer. running 32 instance of cpu miner in a RPI wont be a stable IMO

I can't tell you about the ZH image, but assuming the limitation is the pi itself I saw it max out at 18. The pi could barely do anything else so checking the hashrate locally was a pain. Luckily the pi is cheap and takes nearly no power, plan accordingly.

2) A single Pi can handle up to 32 USB devices (thus, 32 Gridseeds), correct? Will the software support this number? (I switched over to cgminer for more accurate reporting)

Zoomhash_Michael. please check your Zoomhash email as well as a PM I sent you this morning. I have been waiting to hear back all day from you! 

THX
MMNC

We are here. Just getting too many orders.

We hired 5 more people on our team. Should smooth out a lot of things.

Has anyone heard from ZH since March 22?

There were no DC pig tails? If that is the case, we will overnight some to you. Sorry about that, need to go scream at my fulfillers.

Has anyone heard from ZH since March 22?