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Z170 Extreme4, m.2, etc. troubles |
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netjrb ![]() Newbie ![]() Joined: 09 Feb 2016 Status: Offline Points: 15 |
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Hi Guys,
I just got my replacement Extreme7 motherboard. BIOS revision is 1.70. Decided to stick with that revision and see what happened. It is much more stable. Which I guess could just be because of the older BIOS. Don't get random hangs in Windows 10 anymore. But, if I try using Samsung Magician the system hangs. Parsec, What BIOS revision do you recommend using with the Extreme7? Thanks, netjrb |
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Mushu ![]() Newbie ![]() Joined: 08 Feb 2016 Status: Offline Points: 11 |
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Thank you Christer for sharing this piece of information. I have now verified this exact behaviour on my z170 extreme4 board with bios 2.40. To recap: after cold boot the m.2 seq speeds are low ~750mb, initiate sleep and wake the comp up immediately and the m.2 speeds are up considerably ~1500(r) ~1200(w). -M |
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parsec ![]() Moderator Group ![]() ![]() Joined: 04 May 2015 Location: USA Status: Offline Points: 4996 |
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Thanks guys, interesting information. ![]() I'm reluctant to state that a RAID array of SATA drives is the cause of the apparent downshift in speed (a term used with SATA drives) in a PCIe SSDs, just yet. What if it is simply a SATA drive that causes this? That could be a problem with the Z170 chipset itself, since we have reports of this on different boards now, right? Also consider that there must be others besides you two that have a PCIe NVMe SSD and a RAID array of SATA drives connected to the Z170 chipset. Or simply SATA drives. I'm not aware of any other reports of your situation. Many possibilities and unknowns, to early to come to conclusions IMO. I have no SATA drives on my Z170 PC. It will take a little work to change that, which I'll do later today. I'll of course let you know what happens. |
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Mushu ![]() Newbie ![]() Joined: 08 Feb 2016 Status: Offline Points: 11 |
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My setup is similar to netjrb's 1* samsung SM951 m.2 nvme 256gb (MZVPV256HDGL-00000), Revision BXW7300Q
2 * sandisk ultra ii 960gb (raid0), Revision X35510RL
-M
Edited by Mushu - 14 Feb 2016 at 9:48pm |
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netjrb ![]() Newbie ![]() Joined: 09 Feb 2016 Status: Offline Points: 15 |
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Hi Parsec, This is what I was getting at in my last post. The common factor seems to be M.2 paired with SATA drives in RAID mode. I'm on an Extreme 7, but my config is this: 1 * Samsung 950 Pro 256gb(boot), M2_1 slot 2 * WD Red 3TB(RAID1 storage), rated for SATA 6.0Gb/s, SATA3_4 & SATA3_5 slots |
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parsec ![]() Moderator Group ![]() ![]() Joined: 04 May 2015 Location: USA Status: Offline Points: 4996 |
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It's starting to sound like at least one UEFI version for the Z170 Extreme4 may have problems. I say may only because I don't have this board and can't confirm that myself. With two users saying the same thing when using 950 Pros, that worries me.
Quick tip about the Samsung Magician software, which I'm glad was mentioned by Christer703. You can see my 950 Pro runs at its normal speed in my AS SSD results. The Magician software lists my 950 Pro as running at 10Gbps, which seems to be reporting the speed of ONE of the four DMI3/PCIe 3.0 lanes, given a correct connection. This is what the Intel IRST Windows software reports for one 950 Pro: ![]() Notice on the left side, the "PCIe Link Speed" of 4000MB/s. If you are using RAID mode, you can install this software and see what it reports your speed as. If you can do that, it might help prove your case about the UEFI issues. I've used IRST version 14.5 myself, and it did not change the speed of my M.2 connection. You can try the latest version, but I can't tell you it will fix your problem. This is it, but scroll down to the SetupRST.zip file, which is the one you want. https://downloadcenter.intel.com/download/25165/Intel-Rapid-Storage-Technology-Intel-RST-RAID-Driver It is interesting that Christer703 said the Magician software listed his 950 as running at 2.5GBps. Plus the change in speed waking from Sleep. That is good evidence that for some reason the bandwidth of the DMI3 lanes in the Z170 chipset is changing to a lower speed. It should stay at full speed all the time as far as I know. Questions for those with this situation: Do you have any SATA drives connected to the Intel SATA ports? NOT that should make a difference, but just curious if that might be causing some strange interaction. That would include an Optical drive connected via SATA. If you do, what SATA speed(s) are the drives you have rated for? The Chinese Lunar New Year holiday started this week, so everyone in Taiwan is not working, including ASRock. So don't expect a quick reply from ASRock support for a while, sorry to say. Edited by parsec - 12 Feb 2016 at 1:41pm |
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netjrb ![]() Newbie ![]() Joined: 09 Feb 2016 Status: Offline Points: 15 |
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Hi Parsec, Thanks for the info. Please see response to questions below.
I'm using IRST 14.5.0.1081, downloaded from the ASRock website. Sounds like I should be using a newer version. Do you have a link to the latest? I upgraded the BIOS via internet update right after motherboard installation. It updated to version 2.50, don't remember what the version was before the update. Recently upgraded to BIOS 2.60, no difference in behavior. Should I not be using the latest version?
I only change BIOS options before Windows installation, never after. My last installation was with CSM disabled, didn't seem to help with the issues I'm having.
Downloaded from Samsung website and installed after Windows 10 installation. Was able to run Samsung Magician performance test on 950, before hanging caught up with me.
If I leave the CSM options as "Legacy Only" and disable CSM, the RST PCIe Remapping option does not appear. If I change CSM options to "UEFI Only" and then disable CSM, the RST PCIe Remapping option appears.
No haven't done that yet. Will research how to do that and get back to you.
Didn't make note of the ASMedia driver, it's whatever Windows 10 chose to install. Can't say the 850 was actually functional. I was able to format it. Could also see it in Samsung Magician. I don't get a lot of operational time before the system starts to hang. I did install Windows 10 on an old SATA drive. Using that I was able to run AIDA64 Stress Test without issue, but I didn't have the 850 installed at the time. Also was able to run Memtest overnight. So CPU and memory look good. I was planning on using the ASRock USB 3.1 front panel which leaves me with no available Intel SATA ports after I add my RAID drives. I was counting on using the ASMedia port for my 850. Going to be bummed if that won't work.
Really just speculation. Looking for what I might be doing different from everybody else who's had success. I've seen lots of posts with people using M.2's as RAID drives. Hadn't seen anyone before this with RAID mode enabled but only running a single M.2. |
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Christer703 ![]() Newbie ![]() ![]() Joined: 12 Feb 2016 Location: Norway Status: Offline Points: 3 |
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I have the z170 Extreme 4 board and having problems with my samsung 950 pro drive. i managed to install windows 10 on it without any troubles. however it is only stable with bios 2.80 and later. bios 2.40 i get freezing issues in windows randomly. tho with bios 2.40 i have full speeds on the samsung 950 pro disk. but i want it to be stable also so i have bios 2,90 now. with this bios the the bootup is much wuicker and the pc is 100% stable, however i get only half the speed on the m2 disk. (850read/750write).
samsung magician tels me with the bios 2.40 my PCIe link speed is 10Gbps, and now with the 2.90 bios the speed is 2.5Gbps. Crystaldisk info confirms this because there it says i am running the ultra m2 slot in PCIe 1.0 mode. how can i fix this? There is one other very strange thing about this. if i put the pc in sleep mode and wake it up right away i actually get full speeds. but when i restart the system or turn it off and on again i get the same slow speeds. samsung macigian still says im running in only 2.5Gbps after wakeup from sleep tho. This problem i can reproduce over and over again. Programs i have used for testing these speeds are as ssd benchmark, samsung magician, crystaldisk mark, anvilbenchmark, aida 64 extreme. i also have the samsung nvme 1.1 driver installed. do i have to delete or remove old windows nvme driver???
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Mushu ![]() Newbie ![]() Joined: 08 Feb 2016 Status: Offline Points: 11 |
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Yes, those are present as well as these two; "PCIE ASPM Support" and "DMI ASPM Support". All of those are at default value, i.e. disabled.
Yes, I have under storage controllers an entry that reads: Samsung NVMe Controller.
Additional discovery with 2.40 bios, I have observed once that after a boot the SM951 NVMe ran at correct pcie 3.0 x4 (Seq Read speed ~1800M, Seq Write speed ~1200M). <- this is similar to result obtained consistently with 2.90 bios (which is unstable for me). Next boot returned the situation back to pcie 2.0, there were no changes to uefi or drivers between boots. *One more thing is that Aida64 indicates that PCIE2 link speed (used by GPU) is at pcie 2.0 x 16, not sure if helpful. **Other thing is that the z170 extreme4 online manual indicates that PCIE6 Link Speed should be selectable by the user under Chipset Configuration.(Could it be the link the M.2 uses?)
However, there is no such entry in the uefi. (only selection for PCIE2 and PCIE4, tried to set both to pcie 3.0 which had no effect on M.2)
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parsec ![]() Moderator Group ![]() ![]() Joined: 04 May 2015 Location: USA Status: Offline Points: 4996 |
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Does your board's UEFI, in the Chipset Configuration screen, any of these options: PCI DMI ASPM Support PCH PCIE ASPM Support If so, if either of these are Enabled, that could cause the issue. Those are power saving options for the PCH. Otherwise, the 750MB/s write looks like the Win 10 driver is in use. But you say you installed the Samsung NVMe driver. Do you have an entry under Storage Controllers for a Samsung NVMe controller? This is what one 256GB 950 Pro does in AS SSD on my board, while running Windows: ![]()
You mean the size of the font is larger on the ASRock splash screen? I would agree that seems to indicate that the Video OpROM Policy setting is taking precedence over setting CSM to Disabled. That sounds like a bug IMO, unless someone could explain why allowing a setting set to Legacy only with CSM Enabled is carried over when CSM is Disabled. That seemingly defeats the purpose of disabling CSM. Or does that allow a non-GOP compatible Legacy video source to be used with all the other UEFI option enabled.
My board does not have any of the Force M2 options shown, unless that only happens when SATA drives are connected to the SATA ports shared with an M.2 slot.
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