the_Scarlet_one
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Re: 8x/16x not 16x/16x
2015/02/01 17:41:27
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Gforce52
Why would you pass up a Classy? That Gigabyte board will still be bottle necked by the CPU which has a max of 16PCIe lanes. Unless I'm misunderstanding everything which is possible.
None of the boards in the z87/97 are "bottlenecked" by 16 lanes. 16 lanes are plenty for anything you can run today. The plx chips adds fake lanes. They aren't real. They just tell the gpu to run at a speed that doesn't actually matter, as there is still only 16 lanes from the cpu, 8 going to one PCI lane, and 8 going to the plx chip that splits the signal into 24 lanes to be able to run the 3 other lanes. In the end, you have one zero latency lane, and 3 that have to transfer through extra devices to get to the lanes that allow it to run. If you are using 2 PCI devices, you should consider a motherboard that suits your needs, 8 lanes to one lane and 8 to another... If you are running 2 GPUs, and a sounds card, then it makes sense to have the plx chip to assist in running more devices. The look of the motherboard is also a huge selling point, but there is no bottleneck just because someone goes with a Gigabyte board.
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Gforce52
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Re: 8x/16x not 16x/16x
2015/02/01 22:19:06
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What I was trying to say is he wanted that Gigabyte board because it ran dual x16 in the slots 1 and 4, But can it truly run that? Being that the CPU can only support 16 lanes. Sorry for the confusion, I'm trying to learn everything all over again as it has been years since building my last computer.
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the_Scarlet_one
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Re: 8x/16x not 16x/16x
2015/02/02 03:06:47
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It can not truly run it unfortunately. They have to use a chip in between to tell it to run that. It's confusing at first, but the Z series chipset only supports up to 16 lanes being a hindrance. In reality, running 2 cards straight through at x8 should be quicker due to the micro amount of latency caused by plx chip.
I used my z87 Classified for a while, and definitely enjoyed it, but there was a noticeable difference going to a CPU that natively supported that many lanes.
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Randoo1212
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Re: 8x/16x not 16x/16x
2015/02/02 03:33:06
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Has this been resolved, as I am doing a new build this week with 980's in sli
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the_Scarlet_one
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Re: 8x/16x not 16x/16x
2015/02/02 03:59:06
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There is nothing to resolve, unfortunately. If you install them in lane 2 and 4 they run x16. If you have a card in lane 1 and lane 4, lane 1 will be x8 and lane 4 will be 16.
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AKToronto
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Re: 8x/16x not 16x/16x
2015/02/03 11:31:16
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I still wouldn't recommend installing in lane 2 and 4 as you still get bottlenecked by the 8 lanes going up from the PLX chip to the CPU. For a complete run down on the PLX issue, read this. As far as I can tell this info is still relevant to the z97 classified.... http://www.anandtech.com/show/6170/four-multigpu-z77-boards-from-280350-plx-pex-8747-featuring-gigabyte-asrock-ecs-and-evgaNote that there are different implementations of the PLX chip, and I think EVGA has a fairly unique implementation that is designed to minimize latency by having one dedicated lane go straight to the CPU (ie not affected by plx switching). Please see my post on the previous page about this. I think the real benefits to the PLX in EVGA's version come when you start mixing 3 or more pcie cards (e.g. two SLI graphics plus a RAID controller or M.2). To quote from that page: "In this lineup, the CPU provides eight PCIe 3.0 lanes to the first PCIe slot, and the other eight lanes to a multiplexer that either directs the lanes to the first PCIe, or the PEX 8747 chip. The eight upstream lanes in the PLX chip are organized into 32 downstream lanes, which are sent 16 each to the second PCIe x16 slot and the fourth PCIe x16 slot. Those 16 lanes are each shared with the slot directly below. What this means is that the second, third and fourth PCIe lanes, even if they are rated ‘x16’, are limited by the eight lanes upstream from the PLX. While the chip can handle multiple inputs and outputs, that eight lane restriction to the CPU could become an issue. EVGA tell us that their configuration gives better single and dual GPU performance than other manufacturers. Most GPU communication is between GPUs through SLI fingers which is not effected by the 8 lanes upstream, and the PLX chip is clever enough to shut down parts it doesn’t need depending on the configuration, saving power. This allows for the following configurations: [Chart in original link up top] The differences between configurations 14 (Slot 1 and Slot 4) and 15 (Slot 2 and Slot 4) should be explained. While configuration 15 has a total of 16 lanes per GPU on average, if we refer back to the diagram above, these GPUs are limited to the CPU by the 8 lanes upstream from the PLX. By placing the GPUs in configuration 14, we are minimizing latency to the CPU for the first GPU while giving each GPU a maximum of 8 lanes each direct to the CPU (even if they are through the PLX for the second GPU). Yes, using a PLX PEX 8747 chip makes understanding how the lanes work on a motherboard very confusing. No longer can these motherboards really represent what is going on by quoting electrical lane connections. But alas, that is the only way to report them in marketing and PR."
post edited by AKToronto - 2015/02/03 11:37:27
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AKToronto
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Re: 8x/16x not 16x/16x
2015/02/03 12:09:12
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Also, take note of the following conclusions from anandtech that may still be relevant here.... Again, unless I read otherwise about EVGA's PLX implementation on the z97, which hasn't yet been 100% confirmed (please note I bolded the important part below): The main reason the EVGA Z77 FTW was included in this review is due to two factors – it comes in between the $280-$350 mark at $310, and also contains a vital PLX PEX 8747 chip, used for creating a wider range of PCIe lane opportunities than the standard Z77 chipset. EVGA take a different approach than the other manufacturers in our review, by only sending eight of the sixteen PCIe 3.0 lanes from the CPU to the PLX chip. This leaves the other eight to concentrate on the first PCIe slot, and should help single and dual GPU overclocking which can take a hit due to the PLX chip. Users of multiple PCIe devices are advised to always keep the GPU in the first slot to maximize throughput, even if the system recognizes the electrically connected lane counts. While it sounds better to have x16/x16 from placing GPUs in slots two and four, keeping them in slots one and four (x8/x16) is actually preferential due to the eight lanes direct to the CPU that the first GPU has.
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Randoo1212
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Re: 8x/16x not 16x/16x
2015/02/03 15:52:16
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good job sorting that mess out. one and four it is.
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AKToronto
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Re: 8x/16x not 16x/16x
2015/02/03 18:14:16
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No problem... To be honest, the more I read about it the more I actually apreciate EVGA's solution. Its good to have a dedicated lane for graphics directly to the CPU. EVGA understands this since they have a strong background in graphics processing. The problem is about explaining it so that people understand what is actually going on with a PLX chip! While its a smart solution, its also very hard to market! Took me a while to figure it out too, and until I did I was also caught up in the marketing and the "OMG no 16/16 ???" reaction. The marketing around extra PCIE lanes itself is completely misinformed as people should be thinking about these extra lanes as "virtual" lanes, kind of like virtual cores (e.g. hyperthreading) on a core i7 processor (although dont get too caught up in that analogy as there are differences too!). The bottom line is this: The PLX helps manage extra lanes but cannot get over the max 16 lanes input to the CPU (no solution on z97 can). The switching technology also adds a bit of latency which could be observed on certain benchmarks, etc. Because of this latency it makes sense to have a dedicated channel for one graphics card directly to the CPU. This EVGA implementation is probably still stronger on dual SLI then on competing boards (ie gigabyte G1) due to the lack of latency for one card. IF you feed everything through the PLX chip (e.g. a non-evga motherboard) sure it will say 16/16 but its doing that via switching technology, so a 8/8 dedicated channels is probably still stronger, especially for the graphics cards now and in the foreseeable future for the z97 platform, AS WELL AS OVERCLOCKING. The EVGA solution takes the best of both PLX and non-plx worlds, ensuring you get maximum graphics potential whether you are in single mode, or dual or triple SLI. Inotherwords, understanding switching technology and graphics card performance and lane needs is more important than simply numbers like 16/16 etc. Again, where the PLX really becomes useful is when using more than two PCIE cards... This helps a lot with future proofing, given the emergence of m.2, RAID controllers, etc, even if triple SLI seems like overkill.
post edited by AKToronto - 2015/02/03 19:12:30
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AKToronto
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Re: 8x/16x not 16x/16x
2015/02/04 14:12:00
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Hmm one other interesting point... Take a look at the "old" z87 ASUS Maximus VI EXTREME... Another example of a high end overclocking board... Not sure exactly but looks like they also use the first PCIE slot natively (e.g. connecting directly to the CPU)... In fact, they have a secondary pcie so that even a dual config doesn't have to run through the plx...
So its not only EVGA that has thought that keeping a channel directly to the CPU is a good thing, even with PLX onboard.... Overclocking performance! hint hint!
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Tommy Trauma
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Re: 8x/16x not 16x/16x
2015/02/23 08:28:40
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So I want to ask has this been officially resolved as to what slots we need to run in order to get the 16x in both slots? I asked EK over in the watercooling thread about ordering the correct block to run my 680's in SLI and obtain 16x on both of them. I've read slot 1 and 4, I've read 2 and 4 here. Sure would like to save the 65+ bucks if I just have to run them in 2 and 4 so I can keep using my current block. ...edit... Sorry, I read the first page and asked before I read the other 5 hehehe. I guess 1 and 4 is the best way, even with my aging 680's.
post edited by Tommy Trauma - 2015/02/23 08:34:18
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zildjian75
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Re: 8x/16x not 16x/16x
2015/02/23 08:38:04
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Slots 2 & 4 for x16/x16... That's it. No other combination will achieve x16/x16....
"The wise know their weakness too well to assume infallibility; and he who knows most, knows best how little he knows." Thomas Jefferson RIG#1 (Home) - i7 4790k @ 4.4ghz w/ CM V8 GTS - EVGA Z97 Classified - Win10 64bit - Corsair Dominator Platinum 16GB (2x8GB) @ 2133mhz - 2 x EVGA GTX 980SC in SLI - Corsair AX850 - 250GB Samsung Evo (main) - 500GB Samsung Evo (games) - 1TB WD Black (misc) - Aerocool Strike-X (Cheesy... But effective!)
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bcavnaugh
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Re: 8x/16x not 16x/16x
2015/02/23 09:05:00
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zildjian75
Slots 2 & 4 for x16/x16... That's it. No other combination will achieve x16/x16....
So that I know before I get this motherboard the below is incorrect for two GPU, that is slot 1 and 4 would not give me x16-x16 and I have no other cards installed. PCI-E Slot Breakdown PCI-E Lane Distribution PE1 – x16 (x8 if PE2 is used) GPU PE2 – x16 (x8 if PE3 is used) Empty PE3 – x8 Empty PE4 – x16 (x8 if PE6 is used) GPU PE5 – x1 Empty PE6 – x8 Empty I Really wish you had a MODS RIGS to see how you have your rig setup!
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zildjian75
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Re: 8x/16x not 16x/16x
2015/02/23 10:13:55
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Correct. Slot 1 will give you x8... Slot 4 will give you x16... The manual is incorrect.
The board is still awesome, even with this mis-information.
"The wise know their weakness too well to assume infallibility; and he who knows most, knows best how little he knows." Thomas Jefferson RIG#1 (Home) - i7 4790k @ 4.4ghz w/ CM V8 GTS - EVGA Z97 Classified - Win10 64bit - Corsair Dominator Platinum 16GB (2x8GB) @ 2133mhz - 2 x EVGA GTX 980SC in SLI - Corsair AX850 - 250GB Samsung Evo (main) - 500GB Samsung Evo (games) - 1TB WD Black (misc) - Aerocool Strike-X (Cheesy... But effective!)
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zildjian75
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Re: 8x/16x not 16x/16x
2015/02/23 10:15:19
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I still use slots 1 & 4 anyway for my 2 980's
"The wise know their weakness too well to assume infallibility; and he who knows most, knows best how little he knows." Thomas Jefferson RIG#1 (Home) - i7 4790k @ 4.4ghz w/ CM V8 GTS - EVGA Z97 Classified - Win10 64bit - Corsair Dominator Platinum 16GB (2x8GB) @ 2133mhz - 2 x EVGA GTX 980SC in SLI - Corsair AX850 - 250GB Samsung Evo (main) - 500GB Samsung Evo (games) - 1TB WD Black (misc) - Aerocool Strike-X (Cheesy... But effective!)
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zildjian75
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Re: 8x/16x not 16x/16x
2015/02/23 10:15:20
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I still use slots 1 & 4 anyway for my 2 980's
"The wise know their weakness too well to assume infallibility; and he who knows most, knows best how little he knows." Thomas Jefferson RIG#1 (Home) - i7 4790k @ 4.4ghz w/ CM V8 GTS - EVGA Z97 Classified - Win10 64bit - Corsair Dominator Platinum 16GB (2x8GB) @ 2133mhz - 2 x EVGA GTX 980SC in SLI - Corsair AX850 - 250GB Samsung Evo (main) - 500GB Samsung Evo (games) - 1TB WD Black (misc) - Aerocool Strike-X (Cheesy... But effective!)
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CptSpig
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Re: 8x/16x not 16x/16x
2015/02/23 10:15:36
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According to the PCI-E lane distribution slots 2 and 4 are for two way SLI Classified Board. 1 and 4 will also work but you need a long SLI Bridge. PCI-E Slot Breakdown PCI-E Lane Distribution PE1 – x16 (x8 if PE2 is used) PE2 – x16 (x8 if PE3 is used) PE3 – x8 PE4 – x16 (x8 if PE6 is used) PE5 – x1 PE6 – x8
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zildjian75
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Re: 8x/16x not 16x/16x
2015/02/23 10:55:36
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CptSpig
According to the PCI-E lane distribution slots 2 and 4 are for two way SLI Classified Board. 1 and 4 will also work but you need a long SLI Bridge.
PCI-E Slot Breakdown PCI-E Lane Distribution PE1 – x16 (x8 if PE2 is used) PE2 – x16 (x8 if PE3 is used) PE3 – x8 PE4 – x16 (x8 if PE6 is used) PE5 – x1 PE6 – x8
The manual is incorrect Cpt. Slots 2 & 4 is the only way to achieve x16/x16 on the Z97 Classy.
"The wise know their weakness too well to assume infallibility; and he who knows most, knows best how little he knows." Thomas Jefferson RIG#1 (Home) - i7 4790k @ 4.4ghz w/ CM V8 GTS - EVGA Z97 Classified - Win10 64bit - Corsair Dominator Platinum 16GB (2x8GB) @ 2133mhz - 2 x EVGA GTX 980SC in SLI - Corsair AX850 - 250GB Samsung Evo (main) - 500GB Samsung Evo (games) - 1TB WD Black (misc) - Aerocool Strike-X (Cheesy... But effective!)
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howdy2u2
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Re: 8x/16x not 16x/16x
2015/02/23 18:16:12
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zildjian75
CptSpig
According to the PCI-E lane distribution slots 2 and 4 are for two way SLI Classified Board. 1 and 4 will also work but you need a long SLI Bridge.
PCI-E Slot Breakdown PCI-E Lane Distribution PE1 – x16 (x8 if PE2 is used) PE2 – x16 (x8 if PE3 is used) PE3 – x8 PE4 – x16 (x8 if PE6 is used) PE5 – x1 PE6 – x8
The manual is incorrect Cpt. Slots 2 & 4 is the only way to achieve x16/x16 on the Z97 Classy.
I also run my 980's in 1 and 4, bios shows Slot 1= 8x and Slot 4= 16x, When I run Tri-SLI bios reports Slot 1= 8x Slot 2= 16x Slot 4= 16x
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Randoo1212
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Re: 8x/16x not 16x/16x
2015/02/24 02:51:40
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round and round we go. cpu has 16 lanes for pcie slots . slot 1 has 8 lanes direct to cpu. So all of the remaining pcie slots have to fight for the remaining 8 lanes to the cpu. slot 4 says 16 lanes in bios but because of the plex chip. Really only 8 lanes there too. Its right there in AKToronto"s diagram.
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MaadDaawg
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Re: 8x/16x not 16x/16x
2015/03/10 15:49:58
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EVGATech_JaesonW
What exactly are you using to determine PCIe lane usage? If you are using GPUz, do be aware that GPUz isn't very accurate for reporting PCIe lane usage. I'm also going to have a z97 Classified pulled and tested for lane usage in SLI in the various PCIe slots. This may take a few days to investigate, so please be patient and I'll report back once testing is concluded.
OK - I am using your BIOS that came installed on the board to read the lane speeds. I have two ASUS GTX680s -3 slot cards so I inserted them into slots 1 and 4 - SHOULD be x16 X x16 - it's not, I'm getting x8 from slot 1 and x16 from slot 4. I have changed the cards around and STILL get the x8. If I put only 1 card in slot 1 - it gives me x16. This board is advertised as dual at x16 X x16 why won't it work? I called EVGA tech support this morning and the guy had no clue... but here it is on the forum? all the other slots are empty, and I even turned off the graphics in the cpu - doesn't work as advertised :( I'd be very interested in your fix cause if I can't get this working I'm returning the board as defective and picking up another brand.. damn shame, I always used to bench Classifieds in the X58 and was hoping to do so with the Z97 What is the cause - what is the fix ??
post edited by MaadDaawg - 2015/03/10 16:00:16
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the_Scarlet_one
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Re: 8x/16x not 16x/16x
2015/03/10 15:57:31
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MaadDaawg
OK - I am using your BIOS that came installed on the board. I have two ASUS GTX680s -3 slot cards so I inserted them into slots 1 and 4 - SHOULD be x16 X x16 - it's not, I'm getting x8 from slot 1 and x16 from slot 4. I have changed the cards around and STILL get the x8. If I put only 1 card in slot 1 - it gives me x16. This board is advertised as dual at x16 X x16 why won't it work? I called EVGA tech support this morning and the guy had no clue... but here it is on the forum?
all the other slots are empty, and I even turned off the graphics in the cpu - doesn't work as advertised :(
I'd be very interested in your fix cause if I can't get this working I'm returning the board as defective and picking up another brand.. damn shame, I always used to bench Classifieds in the X58 and was hoping to do so with the Z97
What is the cause - what is the fix ??
Disclaimer: It does NOT advertise slot 1 and 4 as x16. You misread it just like everyone else. Slot 2 and 4 are x16, as this cpu has lane 1 only has access directly to the cpu, and the other lanes are all split on the plx. It is IMPOSSIBLE for lane 1 to run above x8 when there is anything installed in the other lanes. Cause: So, the cpu has 16 lanes total. 8 go straight to lane 1. 8 go to the plx, which split 24 fake lanes into the lanes 2, 3, and 4. Anything in any lane other than 1 will put a load on the plx, taking 8 lanes from the cpu, making lane 1 only being capable of x8. Interpreting the graph that is set up is confusing and a massive FAILURE on EVGA. Lane 1 is x16. Lane 2 and 4 should have the blue circles reset to show lane 2 and 4 separated from lane 1, but EVGA is honestly failing at making motherboards. Fix: install the cards inslot 2 and 4, nothing in slot 1.
post edited by Scarlet-Tech - 2015/03/10 15:59:53
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MaadDaawg
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Re: 8x/16x not 16x/16x
2015/03/10 16:05:23
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Scarlet-Tech
MaadDaawg
OK - I am using your BIOS that came installed on the board. I have two ASUS GTX680s -3 slot cards so I inserted them into slots 1 and 4 - SHOULD be x16 X x16 - it's not, I'm getting x8 from slot 1 and x16 from slot 4. I have changed the cards around and STILL get the x8. If I put only 1 card in slot 1 - it gives me x16. This board is advertised as dual at x16 X x16 why won't it work? I called EVGA tech support this morning and the guy had no clue... but here it is on the forum?
all the other slots are empty, and I even turned off the graphics in the cpu - doesn't work as advertised :(
I'd be very interested in your fix cause if I can't get this working I'm returning the board as defective and picking up another brand.. damn shame, I always used to bench Classifieds in the X58 and was hoping to do so with the Z97
What is the cause - what is the fix ??
Disclaimer:
It does NOT advertise slot 1 and 4 as x16. You misread it just like everyone else. Slot 2 and 4 are x16, as this cpu has lane 1 only has access directly to the cpu, and the other lanes are all split on the plx. It is IMPOSSIBLE for lane 1 to run above x8 when there is anything installed in the other lanes.
Cause:
So, the cpu has 16 lanes total. 8 go straight to lane 1. 8 go to the plx, which split 24 fake lanes into the lanes 2, 3, and 4. Anything in any lane other than 1 will put a load on the plx, taking 8 lanes from the cpu, making lane 1 only being capable of x8.
Interpreting the graph that is set up is confusing and a massive FAILURE on EVGA. Lane 1 is x16. Lane 2 and 4 should have the blue circles reset to show lane 2 and 4 separated from lane 1, but EVGA is honestly failing at making motherboards.
Fix:
install the cards inslot 2 and 4, nothing in slot 1.
What you say makes perfect sense, but as you noted EVGA advertises this board as doing dual cards at x16 (check NewEgg descriptions) - for both cards. Since I have ASUS Dirct-CU cards I don't have the luxury of putting them into slots 2 and 4 - won't fit and I'm not going to water cool them just to keep the motherboard. My old 769 Classy did 3 x x16 and that was generations ago?? Worse yet, EVGA tech support THIS MORNING told me that 1 and 4 should both run at x16 - the guy was lost in space as to why lane one wouldn't go over x8 .. so disappointing :(
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the_Scarlet_one
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Re: 8x/16x not 16x/16x
2015/03/10 16:14:23
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MaadDaawg
What you say makes perfect sense, but as you noted EVGA advertises this board as doing dual cards at x16 (check NewEgg descriptions) - for both cards. Since I have ASUS Dirct-CU cards I don't have the luxury of putting them into slots 2 and 4 - won't fit and I'm not going to water cool them just to keep the motherboard. My old 769 Classy did 3 x x16 and that was generations ago?? Worse yet, EVGA tech support THIS MORNING told me that 1 and 4 should both run at x16 - the guy was lost in space as to why lane one wouldn't go over x8 .. so disappointing :(
I know what they say, but they flat out are wrong. It is sadly pathetic they still can't figure out they are wrong And incompetent on this subject. To run 4 way, you would need 4 dual slot cards, which yours is a tri slot card, and wouldn't work. I will try to send the layout to you, to show the actual way the board works, but of course it isn't going to help you because of the cooler size, unfortunately. Right now I can't find it on my phone, so I will update this asap.
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zkanuck
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Re: 8x/16x not 16x/16x
2015/03/10 16:23:08
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Does anyone know why the BIOS reports my GTX980 in PE1 is at (16X) when I have a sound card in PE 5 (1x)? If the CPU only has 16 lanes total, shouldn't the sound card be using 1 lane? So shouldn't PE1 be 15X?
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MaadDaawg
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Re: 8x/16x not 16x/16x
2015/03/10 16:25:03
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Yes, very sadly pathetic. Not only is there nothing in the specs or markings on the board, but there are several undocumented features on the board it's ludicrous.
Thanks Scarlet-Tech ... back the board goes as the dual x16 was the main reason I bought it
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the_Scarlet_one
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Re: 8x/16x not 16x/16x
2015/03/10 16:29:24
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MaadDaawg
Yes, very sadly pathetic. Not only is there nothing in the specs or markings on the board, but there are several undocumented features on the board it's ludicrous.
Thanks Scarlet-Tech ... back the board goes as the dual x16 was the main reason I bought it
Sorry it doesn't work as we all had hoped.
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zkanuck
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Re: 8x/16x not 16x/16x
2015/03/10 16:29:46
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MaadDaawg
Yes, very sadly pathetic. Not only is there nothing in the specs or markings on the board, but there are several undocumented features on the board it's ludicrous.
Thanks Scarlet-Tech ... back the board goes as the dual x16 was the main reason I bought it
Dude, you won't get "dual x16" unless you get a X99 + 5930K or higher. No other Z97 board will give you what you want either. Deal with it. edit: 5930/5960 has 40 lanes which can do 16x/16x, whereas 5820 only has 28 lanes (16x/8x)
post edited by zkanuck - 2015/03/10 19:19:19
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MaadDaawg
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Re: 8x/16x not 16x/16x
2015/03/10 16:39:37
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zkanuck
MaadDaawg
Yes, very sadly pathetic. Not only is there nothing in the specs or markings on the board, but there are several undocumented features on the board it's ludicrous.
Thanks Scarlet-Tech ... back the board goes as the dual x16 was the main reason I bought it
Dude, you won't get "dual x16" unless you get a X99 + 5820K or higher. No other Z97 board will give you what you want either. Deal with it.
yeah, would be nice if it workd as we had all hoped. Zkanuck - it's a matter of principal - you deal with it. If I'm stuck with x8 for the time being there are other Z97 boards with better feature sets. Had it been advertised correctly, I would've have stuck with my RIVE but wanted newer tech - so much for that huh lololol
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zkanuck
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Re: 8x/16x not 16x/16x
2015/03/10 16:55:24
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MaadDaawg
zkanuck
MaadDaawg
Yes, very sadly pathetic. Not only is there nothing in the specs or markings on the board, but there are several undocumented features on the board it's ludicrous.
Thanks Scarlet-Tech ... back the board goes as the dual x16 was the main reason I bought it
Dude, you won't get "dual x16" unless you get a X99 + 5930K or higher. No other Z97 board will give you what you want either. Deal with it.
yeah, would be nice if it workd as we had all hoped. Zkanuck - it's a matter of principal - you deal with it. If I'm stuck with x8 for the time being there are other Z97 boards with better feature sets. Had it been advertised correctly, I would've have stuck with my RIVE but wanted newer tech - so much for that huh lololol
Despite what was advertised, you don't seem to understand that the Z97 can't do more than 16X in total - it will never do 32X (16 + 16). I also bought this mobo because I thought I could have both my 980s in SLI at 16X. What I didn't realize at first - and I hope you will soon - was that regardless of what the PLX chip is doing behind the scenes with it's Virtual lanes, the CPU will never see more than 16X in total. And that the Z97 Classy has a better implementation than most other Z97s in how the first slot gets a full 8X if other slots or lanes are being used through the PLX. Even if you could find another PLX enabled Z97 mobo and the BIOS or utility tells you your cards are at 16x/16x - they really won't be. Cut your losses and get X99 + 5930K if you want true 16x/16x. Otherwise be satisfied that you are never going get better than true 8x/8x on the Z97 platform. edit: 5930 vs 5820
post edited by zkanuck - 2015/03/10 19:20:32
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