twib2
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Activity: 280
Merit: 250
Helperizer
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August 23, 2014, 04:16:11 AM |
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Ting Shao has been a great support to me.
During firmware upgrade, I messed up my S3 Controller board. Ting Shao replied and asked me to send it for RMA.
I said it will take 2 weeks to get to China, and I prefer to pay upfront than to wait for the RMA fix.
I paid for the S3 board (since it was my f***up), the board showed up 2 days after via UPS express.
Bitmain's customer support is excellent. I think if you are reasonable with them and don't try to hide your f***ups and try to scam bitmain, you will get your fix right away.
Really? It took him over a week to get back to me before I could get a bitcoin address and the shipping label he didn't attach to his email in the first place, even after repeated attempts at following up at that point. And in my case, the one hashing board that died did so after only running 2 hours at stock speeds. No firmware update, no OC, I planned to be careful for the first week before deciding what to do, and I didn't even get that. I guess we had two different guys using that name maybe? |
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twib2
Sr. Member
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Activity: 280
Merit: 250
Helperizer
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August 23, 2014, 04:43:03 AM |
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Ok, so were 3 days 5 hrs in on the 243.75's and I've noticed some drops in hash. I know machines have variance of +/- 10% sometimes but it seems like a steady but slow decline. What's weird is the time passed being only 2 days and change, compared to say a month or something.
Anyone else get this with OC'd machines ?
Power supplies. They're probably close enough to the edge of the kind of power the S3's like (beefier than they draw) that just staying hot for a long time is enough to suck hashing power. Do you have 2 PSU's on each OC'd unit, or only one? And are you using two separate 6-pin PCI power connectors for each blade (not daisy-chain style) or only one? My suggestion is to either cool the PSUs and see if your rate goes up, or use more/better PSUs. Poor power doesn't always show up in x's or -'s now that I've been playing a bit with my good S3 and just got 60 GH/s back by adding another PSU. Worth a try! |
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daeminium
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August 23, 2014, 05:15:29 AM |
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Date Difficulty Change Hash Rate
Aug 19 2014 23,844,670,039 20.86% 170,686,797 GH/s
Bitcoin Difficulty: 23,844,670,039
Estimated Next Difficulty: 29,059,721,211 (+21.87%)
= NO ROI
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MoreBloodWine
Legendary
Offline
Activity: 1050
Merit: 1001
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August 23, 2014, 05:17:05 AM |
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Ok, so were 3 days 5 hrs in on the 243.75's and I've noticed some drops in hash. I know machines have variance of +/- 10% sometimes but it seems like a steady but slow decline. What's weird is the time passed being only 2 days and change, compared to say a month or something.
Anyone else get this with OC'd machines ?
Power supplies. They're probably close enough to the edge of the kind of power the S3's like (beefier than they draw) that just staying hot for a long time is enough to suck hashing power. Do you have 2 PSU's on each OC'd unit, or only one? And are you using two separate 6-pin PCI power connectors for each blade (not daisy-chain style) or only one? My suggestion is to either cool the PSUs and see if your rate goes up, or use more/better PSUs. Poor power doesn't always show up in x's or -'s now that I've been playing a bit with my good S3 and just got 60 GH/s back by adding another PSU. Worth a try! My friend hosting them said and sent pics that each one is on a singular supply of 650W or greater with each miner using all four power ports. Should I find out the specific PSU not that I think it matters with each one being 650w or greater. Edit: --- And are you using two separate 6-pin PCI power connectors for each blade (not daisy-chain style) or only one? I actually just shot him an email about this but do you mean four cables using four ports on both the miner and PSU ? I also dont get the beefier thing. |
To be decided...
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bentleyrosco
Newbie
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Activity: 13
Merit: 0
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August 23, 2014, 07:57:23 AM |
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I went to use my 3 unused coupons today from the Bitmain Hash speed issue and found out that they expired.
What a crock of crap.
If they dont give me my coupons back or the equal bitcoin I will not purchase their products anymore.
Has anyone else had this happen???
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Rabinovitch
Legendary
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Activity: 2030
Merit: 1076
BTCLife.global participant
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August 23, 2014, 08:03:38 AM |
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Why at ozcoin speed of the one of my S3 is 1 Th/s?..  In miner's gui it about 450 Gh... |
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HardwareReviewer
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August 23, 2014, 08:11:02 AM |
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Hi,
one of my S3 miners has an extreme low hashrate (80 GH/s).
It seems that it is not pulling the frequency data from the config file.
I've attached a picture, looking at the config file it shows that the frequency is supposed to be the standard 218.75.
Factory reset didn't help.
Anyone knows what to do about this?
You need to go to the miner configuration tab. Select advanced and choose a frequency. Save and apply. all better. I wonder what it is about the new FW that does this or maybe it's some sort of post lash protection but the same thing happened to me and was fixed just by "applying" everything from the new tab. Thanks, I'll try it. That did the trick indeed! Thanks both for your help. Cheers, HR |
Prepare to enter a world of stress
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DrG
Legendary
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Activity: 2086
Merit: 1035
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August 23, 2014, 09:07:29 AM |
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I went to use my 3 unused coupons today from the Bitmain Hash speed issue and found out that they expired.
What a crock of crap.
If they dont give me my coupons back or the equal bitcoin I will not purchase their products anymore.
Has anyone else had this happen???
I believed the coupons expired on the 16th, and now it's a week later. It was posted up and down this thread so you'll probably get no sympathy. Most tried to sell their coupons last minute. |
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philipma1957
Legendary
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Activity: 4116
Merit: 7849
'The right to privacy matters'
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August 23, 2014, 12:34:03 PM |
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I went to use my 3 unused coupons today from the Bitmain Hash speed issue and found out that they expired.
What a crock of crap.
If they dont give me my coupons back or the equal bitcoin I will not purchase their products anymore.
Has anyone else had this happen???
you are the first that admitted to letting this happen. many gave them away sold them or used them. no one else confessed to letting them die. I admire you for admitting this to us. |
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twib2
Sr. Member
Offline
Activity: 280
Merit: 250
Helperizer
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August 23, 2014, 01:28:45 PM |
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My friend hosting them said and sent pics that each one is on a singular supply of 650W or greater with each miner using all four power ports.
Should I find out the specific PSU not that I think it matters with each one being 650w or greater.
Edit:
--- And are you using two separate 6-pin PCI power connectors for each blade (not daisy-chain style) or only one?
I actually just shot him an email about this but do you mean four cables using four ports on both the miner and PSU ?
I also dont get the beefier thing.
Actually, it does matter - I have an 850 Watt PSU that can't handle OC'ing a single S3 (barely handles stock speeds). It loses hash compared to now that I run the 850 one one blade using two separate cables from the PSU (i.e. not a single cable from the PSU that has two 6-pin PCI connectors) and one 600 on the other blade. "beefier" just means more stout, stronger, tougher - in this case, more stable and more able to hand a hard, steady drain. Yep, a single 650 will likely not be able to handle OC'ing one S3. IMHO. |
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tom99
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August 23, 2014, 01:59:34 PM |
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I went to use my 3 unused coupons today from the Bitmain Hash speed issue and found out that they expired.
What a crock of crap.
If they dont give me my coupons back or the equal bitcoin I will not purchase their products anymore.
Has anyone else had this happen???
Someone already said it expired last week so I think. |
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visdude
Legendary
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Activity: 1081
Merit: 1001
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August 23, 2014, 02:06:19 PM |
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My friend hosting them said and sent pics that each one is on a singular supply of 650W or greater with each miner using all four power ports.
Should I find out the specific PSU not that I think it matters with each one being 650w or greater.
Edit:
--- And are you using two separate 6-pin PCI power connectors for each blade (not daisy-chain style) or only one?
I actually just shot him an email about this but do you mean four cables using four ports on both the miner and PSU ?
I also dont get the beefier thing.
Actually, it does matter - I have an 850 Watt PSU that can't handle OC'ing a single S3 (barely handles stock speeds). It loses hash compared to now that I run the 850 one one blade using two separate cables from the PSU (i.e. not a single cable from the PSU that has two 6-pin PCI connectors) and one 600 on the other blade. "beefier" just means more stout, stronger, tougher - in this case, more stable and more able to hand a hard, steady drain. Yep, a single 650 will likely not be able to handle OC'ing one S3. IMHO. You only need to read a few pages back to discover that miners (including myself) have successfully been OC'ing S3s with mere 500W PSUs with only 2 PCIe power inputs. |
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crazyates
Legendary
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Activity: 952
Merit: 1000
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August 23, 2014, 02:49:21 PM |
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Actually, it does matter - I have an 850 Watt PSU that can't handle OC'ing a single S3 (barely handles stock speeds). It loses hash compared to now that I run the 850 one one blade using two separate cables from the PSU (i.e. not a single cable from the PSU that has two 6-pin PCI connectors) and one 600 on the other blade.
Yep, a single 650 will likely not be able to handle OC'ing one S3. IMHO.
Was that 850W a single 12V rail PSU? You only need to read a few pages back to discover that miners (including myself) have successfully been OC'ing S3s with mere 500W PSUs with only 2 PCIe power inputs.
Yep, an OC'd S3 will pull a hair over 30A on the 12V line. Your PSU has to be able to supply at least 30A, but as long as it can do that, you're good. |
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twib2
Sr. Member
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Activity: 280
Merit: 250
Helperizer
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August 23, 2014, 02:53:11 PM |
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You only need to read a few pages back to discover that miners (including myself) have successfully been OC'ing S3s with mere 500W PSUs with only 2 PCIe power inputs.
Yes, I've been following this thread since the beginning. ("discover" - really? Nice.) But I'm talking about his results and the fact that his situation with his 650 matches my experience with a wimpy 850. The QUALITY of a PSU is more important than the rating above a certain level (and 500 sounds about right for a really good high-efficiency PSU). I'm not as concerned with the 2 PCIe inputs as I am with good PSUs. But if you have a weak one with separate weak or marginal rails, then 2 inputs per blade could very well help. My thought is that it is the "sag" the poorer powersupplies experience with a strong maintained load that is the problem. Back in the day with AM Cubes, we had the same persnicketiness with the quality of solid, stable PSUs. I had a couple of server 750s that would each run 2 OC'd Cubes no problem at a time when folks sometimes couldn't get their Cubes to run with a single 750 (or even 850). This is not my first rodeo, but thanks for your kind input. I stand by what I wrote, and I think he would be well-served to try better (or more) PSUs - it worked for me, and his stated symptoms match what I was seeing. |
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twib2
Sr. Member
Offline
Activity: 280
Merit: 250
Helperizer
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August 23, 2014, 02:57:09 PM |
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Actually, it does matter - I have an 850 Watt PSU that can't handle OC'ing a single S3 (barely handles stock speeds). It loses hash compared to now that I run the 850 one one blade using two separate cables from the PSU (i.e. not a single cable from the PSU that has two 6-pin PCI connectors) and one 600 on the other blade.
Yep, a single 650 will likely not be able to handle OC'ing one S3. IMHO.
Was that 850W a single 12V rail PSU? You only need to read a few pages back to discover that miners (including myself) have successfully been OC'ing S3s with mere 500W PSUs with only 2 PCIe power inputs.
Yep, an OC'd S3 will pull a hair over 30A on the 12V line. Your PSU has to be able to supply at least 30A, but as long as it can do that, you're good. My wimpy 850 was single rail, rated at 58A. The voltage stability and level on cheaper power supplies can have a lot of variance and can even be just under 12V on a multimeter. Don't trust ratings alone. ;-) |
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crazyates
Legendary
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Activity: 952
Merit: 1000
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August 23, 2014, 02:58:09 PM |
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Actually, it does matter - I have an 850 Watt PSU that can't handle OC'ing a single S3 (barely handles stock speeds). It loses hash compared to now that I run the 850 one one blade using two separate cables from the PSU (i.e. not a single cable from the PSU that has two 6-pin PCI connectors) and one 600 on the other blade.
Yep, a single 650 will likely not be able to handle OC'ing one S3. IMHO.
Was that 850W a single 12V rail PSU? My wimpy 850 was single rail, rated at 58A. The voltage stability and level on cheaper power supplies can have a lot of variance and can even be just under 12V on a multimeter. Don't trust ratings alone. ;-) What brand? |
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twib2
Sr. Member
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Activity: 280
Merit: 250
Helperizer
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August 23, 2014, 03:03:33 PM |
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Actually, it does matter - I have an 850 Watt PSU that can't handle OC'ing a single S3 (barely handles stock speeds). It loses hash compared to now that I run the 850 one one blade using two separate cables from the PSU (i.e. not a single cable from the PSU that has two 6-pin PCI connectors) and one 600 on the other blade.
Yep, a single 650 will likely not be able to handle OC'ing one S3. IMHO.
Was that 850W a single 12V rail PSU? My wimpy 850 was single rail, rated at 58A. The voltage stability and level on cheaper power supplies can have a lot of variance and can even be just under 12V on a multimeter. Don't trust ratings alone. ;-) What brand? It was a SolidGear Neutron 850 - it's what I had lying around and thought/hoped it would work. Not so much.  |
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MoreBloodWine
Legendary
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Activity: 1050
Merit: 1001
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August 23, 2014, 05:16:49 PM |
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Ok, well no word back yet from he guy hosting my machines but I'll see if when he replies I can get hard numbers on the current PSU's and go from there. I guess all I'll need it just the brand / model.
I just don't want to continue losing hash like this.
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To be decided...
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Biodom
Legendary
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Activity: 3752
Merit: 3864
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August 23, 2014, 05:26:24 PM |
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Ok, well no word back yet from he guy hosting my machines but I'll see if when he replies I can get hard numbers on the current PSU's and go from there. I guess all I'll need it just the brand / model.
I just don't want to continue losing hash like this.
could it be just fluctuations: mine keep going up and down, even in the average at the pool. |
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