I have a couple 1080 (non-Ti) cards that are mining ZenCash.  I noticed that Whattomine.com says I should be getting 550 sol/s out of them, but I'm only getting about 500 sol/s.  Does anyone know if the whattomine.com stat is overclocked?  I wouldn't think so, but I'm not sure.

I'm not doing any undervolting or overclocking on the cards, or changing anything at all.  I'm just trying to get a baseline for the performance before I do anything.

The cards are using about 170w each and run at about 70C each with the fans at about 75%.  For now, each card is on it's own 750w power supply (i planned on adding more cards later).  This is on a GA-H110-D3A motherboard with a G4400 Pentium and 4GB RAM and an SSD.  I've tried both Windows and Linux and they both perform the same with no tweaks.

Any ideas?

[ANY]

I have one rig with 2 x ASUS 1080 FTW (non-Ti), 2 x Zotac Mini 1070 and 2 x Asus 1060 3GB.  I've also got 2 x EVGA GOLD 750w power supplies, making sure to put 3 cards on each power supply.  Eacy powr supply shows about 550w used peak.

If I try to overclock ANY of them, the rig will crash.  I can overclock the 1070s memory by about 200MHz, but they will crash about an hour later.

In the logs I can see that it's always either one of my 1080 (PCI:5) or a 1060 (PCI:1) that crashes.  I've tried just overclocking the other cards and leaving those as stock, but the system still reports one of those crashes.  I've tried just increment the overclock by very low amounts, but with any amount of overclock, the system becomes unstable and won't stay up a day without crashing.

The system is solid and with default clocks and doesn't crash though.

Any ideas?

Has anybody done comparison tests of mining one coin, such as ZEN/ZEC or another profitable one, and compared it to doing coin/algorithm switching on a pool such as Zpool or Mingpoolhub?  This is just purely for BTC payout and not to hodl the coin mined.  I only have one small rig, so I can't really do a side-by-side test to see which one would be more profitable.  Opinions?

I have one rig right now that has 1 - EVGA 1080, 2 - EVGA 1060s and 1 - Zotac 1070.  At this moment when I enter my hash rates into whattomine.com, it says Signatum is my best bet with a profitability of $8.58 a day.  second is Zcash at $8.07 a day.  If I mine SIGT for a day and and then move it over to Cryptopia to exchange for BTC, I get about $6.20 or so total, are the fees really adding up to that much?  I double-checked the exchange rate on Cryptopia and it is still around $8.50 mark when I exchange it to BTC.  I've tried algorithm switching software and still end up with the same avg a day of around $6.10 or so.  If I use NiceHash though I get almost $8.00 a day.  I was under the impression that if I mined SIGT directly from Suprnova.cc and exchanged myself I should see more profit.

Help please.