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Topic: [Solved]Abnormal hash/s rate on PCIe x1 slot. [.1 BTC Bounty-Paid] (Read 3472 times)

hero member
Activity: 504
Merit: 500
any of the ones I either was going to be flexing a lot or were not wrapped very good at the connectors, I have taken and ran a few windings of electrical tape around the soldered points on the pcbs. So far, so good.

I have had 1 extender that arrived bad (a 1x to 1x), though I am not completely certain. I may have used it briefly when testing cards and assumed the card was giving me a hard time before I verified the connector as bad. No visible signs of borken connections on it. I did not troubleshot it as I had extra around at the time.
legendary
Activity: 1064
Merit: 1000
From an Ebay vendor called Emilyandlily.

My guess is that it was damaged in shipment, as when I pulled it , it was was working OK.

Those are some delicate solder points from the ribbon cable to the slot board, possibly weakened through my own use.

Perhaps a good lesson here is not to buy used risers, as after use, the solder points could be in a weakened state that are more likely to be damaged in shipping.

I am glad you were able so solve your issues, and I think we both both learned a valuable lesson.  Smiley
hero member
Activity: 770
Merit: 502
Ok.

I had received a pcie x1 > pcie x16 adapter from sadpandatech, I am mining normally on my pcie x1 slot @ normal hashrates. 370 mhash/s.

So, it was the adapter that dreamwatcher mailed off to me. I know dreamwatchers attentions were good, so don't let this think otherwise of him as he was trying to help me.

I can now mark this thread solved, and I will leave it open for others to scope it out.

Btw, dreamwatcher, where had you purchased the adapter from, if you don't mind me asking? I was notified before I purchased sadpandatechs adapter that he had got his from cablesaurus.com.

So, I thank everyone, everyone, for helping me solve this and everyone that had shipped off quickly an adapter to me, dreamwatcher and sadpandatech.

Thank you to all.
legendary
Activity: 1820
Merit: 1000
hero member
Activity: 682
Merit: 500
Note to self: Dreamwatcher is a stand up member.
hero member
Activity: 770
Merit: 502
Very kind and thoughtful of you. I apologize for all this.
legendary
Activity: 1064
Merit: 1000
It is already done.

It is quite alright, as a business person I would not feel right keeping the coin.

I have always run my business in this manor, and perhaps I could be more successful if I didn't, but it is who I am as a person.



oboy, what if it's not the adapter? Even if it was, makes me feel like utter shit.

Don't, we are talking about 0.6 BTC here, hardly anything to feel like shit over.

I am just happy that I was able help a fellow form member, do not give it a second thought.
hero member
Activity: 770
Merit: 502
It is already done.

It is quite alright, as a business person I would not feel right keeping the coin.

I have always run my business in this manor, and perhaps I could be more successful if I didn't, but it is who I am as a person.



oboy, what if it's not the adapter? Even if it was, makes me feel like utter shit.
legendary
Activity: 1064
Merit: 1000
It is already done.

It is quite alright, as a business person I would not feel right keeping the coin.

I have always run my business in this manor, and perhaps I could be more successful if I didn't, but it is who I am as a person.

hero member
Activity: 770
Merit: 502
I am going to go ahead and refund the 0.5 BTC you paid me for the extender, just in case it was the extender.

Although it worked fine for me, who knows what could have happened in shipping.

I will send it to the address in your signature.

Hope you sort it all out and get back to full speed mining!

Edit: I am also sending you the .1 bounty you paid.


Don't do that. What if it is my board? So, yea, don't do that. Even if it turns out bad, don't worry about it as no one would have known.

Please don't.
legendary
Activity: 1064
Merit: 1000
I am going to go ahead and refund the 0.5 BTC you paid me for the extender, just in case it was the extender.

Although it worked fine for me, who knows what could have happened in shipping.

I will send it to the address in your signature.

Hope you sort it all out and get back to full speed mining!

Edit: I am also sending you the .1 bounty you paid.
hero member
Activity: 770
Merit: 502
Did you ever end up trying a new miner? I personally think that it's just a faulty extension (maybe shipping damage), but I would want to completely confirm my hashrate before putting more money into it. I think a new motherboard is definitely not necessary. That's an unneeded expense if you ask me.

Nah, as it the miner mines just fine with the two 5850's in the two pcie x16 slots. Yea me too, I believe the adapter might be at fault here. The adapter I've got does not look like the one on cablesaurus , it has gigabyte printed on the x16 slot of the adapter with a white pin plug but I looked at the soldering job before I used it to make sure no contacts were touching each other, they looked fine but the soldering job is for horse shit on it. Like a very cheaply made one. If I do get a new board it won't be for a while and might not at all with these new supposedly butterflylabs machines coming out.
hero member
Activity: 682
Merit: 500
Did you ever end up trying a new miner? I personally think that it's just a faulty extension (maybe shipping damage), but I would want to completely confirm my hashrate before putting more money into it. I think a new motherboard is definitely not necessary. That's an unneeded expense if you ask me.
hero member
Activity: 770
Merit: 502
Not sure i follow your results since yuo only list one connections side.

so the 1x to 16x is the one that workd correctly but a 1x to 1x did not?

I never purchased a 1x > 1x adapter, just the 1x > 16x, and that is the adapter I tested on.
hero member
Activity: 504
Merit: 500
Not sure i follow your results since yuo only list one connections side.

so the 1x to 16x is the one that workd correctly but a 1x to 1x did not?
hero member
Activity: 770
Merit: 502
Not sure if this was mentioned already. But have you tried a powered 1x - 1x extender?

Other option would be a new mobo. And now that you mention it the 1 single 1x-1x that I owned is one of the cables that I had issue with when used on 2 of my boards. But, it may be coicidence since a x1 - x16 also had an issue. same card in same slot had no issue with another x1 to x16 and a x16 to x16 so I just assumed defective extenders.

Nope, i've hadn't. I was told that I just need the x1 - x16 adapter. So I had bought one from a member here and well, the results are in the op.
hero member
Activity: 504
Merit: 500
Not sure if this was mentioned already. But have you tried a powered 1x - 1x extender?

Other option would be a new mobo. And now that you mention it the 1 single 1x-1x that I owned is one of the cables that I had issue with when used on 2 of my boards. But, it may be coicidence since a x1 - x16 also had an issue. same card in same slot had no issue with another x1 to x16 and a x16 to x16 so I just assumed defective extenders.
sr. member
Activity: 392
Merit: 250
I was getting low mhash when I switch to a pci-1 slot. The problem was the pci-e extender was faulty.
legendary
Activity: 2450
Merit: 1002
I've seen the same on a MSI 990fx on the first 1x slot the other one works fine. Not much help I know but I'm fairly certain its not a motherboard issue, and it wasn't a faulty extension cable. So my guessing is it needs a powered extension cable or your using all the pcie lanes on the board with your other cards.
If you were using "all the other lanes" .. the card wouldnt be detected at all...
sr. member
Activity: 437
Merit: 250
I've seen the same on a MSI 990fx on the first 1x slot the other one works fine. Not much help I know but I'm fairly certain its not a motherboard issue, and it wasn't a faulty extension cable. So my guessing is it needs a powered extension cable or your using all the pcie lanes on the board with your other cards.
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