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#1
July 26th 18, 01:28 AM
posted to alt.windows7.general
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O/T: HDD to NVMe completed with no problems.
Summary:
Installed PRO 970 512GB NVMe 4x on MB, installed driver & turned on NVMe in bios, cloned W7 hdd to NV, adjusted NV partition size, changed boot order, rebooted. That pretty well sums it up. No glitches or problems at all. Crystal Disk 6: NVMe 4x 512 vs. WD500 7200 rpm, 6GB/s, SATA3, Black: Sequential read MB/s 3288.8 vs. 164.3. Sequential write MB/s 2328.3 vs. 163.0. It's nice to click on something and it pops up instantly. Games run smoother, too. Next... hmm... 10 or 12 cpu cores would be nice. 
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#2
July 26th 18, 04:47 AM
posted to alt.windows7.general
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O/T: HDD to NVMe completed with no problems.
Paul in Houston TX wrote:
Summary: Installed PRO 970 512GB NVMe 4x on MB, installed driver & turned on NVMe in bios, cloned W7 hdd to NV, adjusted NV partition size, changed boot order, rebooted. That pretty well sums it up. No glitches or problems at all. Crystal Disk 6: NVMe 4x 512 vs. WD500 7200 rpm, 6GB/s, SATA3, Black: Sequential read MB/s 3288.8 vs. 164.3. Sequential write MB/s 2328.3 vs. 163.0. It's nice to click on something and it pops up instantly. Games run smoother, too. Next... hmm... 10 or 12 cpu cores would be nice. Your write number is realistic. Your read number is hitting the calculated limit. Still, your write is excellent and should keep you quite happy. ******* http://www.plxtech.com/files/pdf/tec...yload_Size.pdf "Intel desktop chipsets support at most a 64-byte maximum payload while Intel server chipsets support at most a 128-byte maximum payload. The primary reason for this is to match the cache line size for snooping on the front side bus." The original link is no longer available, after Broadcom bought them out. This will have to substitute for a download source. https://www.mindshare.com/files/reso...yload_Size.pdf A 64-byte chipset buffer would be 0.7 * (4*985MB/sec) = 2758MB/sec read A 128-byte chipset buffer would be 0.83 * (4*985MB/sec) = 3270MB/sec read And I don't know if the buffer size is documented anywhere either. Not likely to be in the "spec sheet", such as it is. My guess is, you have a pretty good system there. Probably a QPI based system. If it was a dinky system, you'd also be hitting the roof on the DMI bus. Paul
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#3
July 26th 18, 06:26 AM
posted to alt.windows7.general
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O/T: HDD to NVMe completed with no problems.
Paul wrote:
Paul in Houston TX wrote: Summary: Installed PRO 970 512GB NVMe 4x on MB, installed driver & turned on NVMe in bios, cloned W7 hdd to NV, adjusted NV partition size, changed boot order, rebooted. That pretty well sums it up. No glitches or problems at all. Crystal Disk 6: NVMe 4x 512 vs. WD500 7200 rpm, 6GB/s, SATA3, Black: Sequential read MB/s 3288.8 vs. 164.3. Sequential write MB/s 2328.3 vs. 163.0. It's nice to click on something and it pops up instantly. Games run smoother, too. Next... hmm... 10 or 12 cpu cores would be nice. Your write number is realistic. Your read number is hitting the calculated limit. Still, your write is excellent and should keep you quite happy. ******* http://www.plxtech.com/files/pdf/tec...yload_Size.pdf "Intel desktop chipsets support at most a 64-byte maximum payload while Intel server chipsets support at most a 128-byte maximum payload. The primary reason for this is to match the cache line size for snooping on the front side bus." The original link is no longer available, after Broadcom bought them out. This will have to substitute for a download source. https://www.mindshare.com/files/reso...yload_Size.pdf A 64-byte chipset buffer would be 0.7 * (4*985MB/sec) = 2758MB/sec read A 128-byte chipset buffer would be 0.83 * (4*985MB/sec) = 3270MB/sec read And I don't know if the buffer size is documented anywhere either. Not likely to be in the "spec sheet", such as it is. My guess is, you have a pretty good system there. Probably a QPI based system. If it was a dinky system, you'd also be hitting the roof on the DMI bus. Paul Thanks Paul. Always an interesting reply with items for further research.
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#4
July 26th 18, 09:47 AM
posted to alt.windows7.general
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O/T: HDD to NVMe completed with no problems.
On 7/26/2018 8:28 AM, Paul in Houston TX wrote:
Summary: Installed PRO 970 512GB NVMe 4x on MB, installed driver & turned on NVMe in bios, cloned W7 hdd to NV, adjusted NV partition size, changed boot order .... I rather take the chance to do a clean install! Might bring extra advantages doing so. -- @~@ Remain silent! Drink, Blink, Stretch! Live long and prosper!! / v \ Simplicity is Beauty! /( _ )\ May the Force and farces be with you! ^ ^ (x86_64 Ubuntu 9.10) Linux 2.6.39.3 不借貸! 不詐騙! 不*錢! 不援交! 不打交! 不打劫! 不自殺! 不求神! 請考慮綜援 (CSSA): http://www.swd.gov.hk/tc/index/site_...sub_addressesa
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