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Missing capacity on ssd

I have two 960gb SanDisk SSD's and when I format both of them, the capacity is only 500gb. Disk management shows that the drives only have 500gb with no unallocated space to be seen. Same issue on both identicle drives. What's up? Pls help

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What are the drives (genuine sandisk or wish specials?) ? Can you do a screen grab of disk manager? What do they report as in crystal disk info? 

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Download MIniTool Partition Wizard. Then resize (using that program) your partition a little (shrink it by 1GB for example). Apply. Then check.

 

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Before formatting, did you partition them? Were they bought new?

Desktop Gaming system: Asrock Z370 Pro4, i7-8086k, Noctua D15, Corsair Vengeance Pro RGB 3200 4x16GB, EVGA 2080Ti, NZXT E850 PSU, Cooler Master MasterBox 5, Optane 900p 280GB, Crucial MX200 1TB, Sandisk 960GB, Acer Predator XB241YU 1440p144 G-sync
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Gaming laptop: Asus FX503VD, i5-7300HQ, DDR4 2133 2x8GB, GTX 1050, Sandisk 256GB + 480GB SSD [link]


 

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19 minutes ago, porina said:

Before formatting, did you partition them? Were they bought new?

I actually found them in an upgraded server that was running an i5-4000 series cpu. On that machine they both reported as 500gb

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Windows reported that one of the drives needed to be repaired, I ran the tool and now one of the drives formats to 800gb

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28 minutes ago, homeap5 said:

Download MIniTool Partition Wizard. Then resize (using that program) your partition a little (shrink it by 1GB for example). Apply. Then check.

 

I'll try it

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42 minutes ago, CynicalTeacher said:

What are the drives (genuine sandisk or wish specials?) ? Can you do a screen grab of disk manager? What do they report as in crystal disk info? 

They are genuine drives of course

Disk.PNG

DiskManage.PNG

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9 minutes ago, intelisfornoobs said:

I actually found them in an upgraded server that was running an i5-4000 series cpu. On that machine they both reported as 500gb

Sounds like whoever used them before had over-provisioned them. By limiting the capacity below the maximum available, the drives may perform better in some circumstances. 

 

Best thing to do is to delete all partitions on them (some may be hidden) and create a new partition of the whole space. 

 

From your last screenshot, 894GiB = 960GB, but Windows displays GiB as GB. Anyway, that appears to be the correct capacity.

Desktop Gaming system: Asrock Z370 Pro4, i7-8086k, Noctua D15, Corsair Vengeance Pro RGB 3200 4x16GB, EVGA 2080Ti, NZXT E850 PSU, Cooler Master MasterBox 5, Optane 900p 280GB, Crucial MX200 1TB, Sandisk 960GB, Acer Predator XB241YU 1440p144 G-sync
TV Gaming system: Gigabyte Z490 Elite AC, i7-11700k, Noctua D15, Kingston HyperX RGB 4000@3600 2x8GB, MSI 3070 Gaming Trio X, EVGA Supernova G2L 850W, Corsair 230T, Crucial P1 1TB + MX500 1TB, LG OLED55B9PLA 4k120 G-Sync Compatible
Streaming system: Asus X299 TUF mark 2, i9-7920X, Noctua D15, Corsair Vengeance LPX RGB 3000 8x8GB, Asus Strix 1080Ti, Corsair HX1000i, GameMax Abyss, Samsung 970 Evo 500GB, Crucial BX500 1TB, BenQ XL2411 1080p144 + HP LP2475w 1200p60
Former Main system: Asus Maximus VIII Hero, i7-6700k, Noctua D14, G.Skill Ripjaws V 3200 2x8GB, GTX 980Ti FE, Corsair HX750i, In Win 303 NVIDIA, Samsung SM951 512GB, WD Blue 1TB, Acer RT280k 4k60 FreeSync [link]
Gaming laptop: Asus FX503VD, i5-7300HQ, DDR4 2133 2x8GB, GTX 1050, Sandisk 256GB + 480GB SSD [link]


 

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46 minutes ago, CynicalTeacher said:

What are the drives (genuine sandisk or wish specials?) ? Can you do a screen grab of disk manager? What do they report as in crystal disk info? 

Windows reported that the drives had issues and directed me to control panel where it ran diagnostics and fixed it!

Here is the same info for the second drive, I beleive that the capacity is coming up as 860gb instead of 960 because CrystalDisk reports each drive as having 100gb for NAND flash? Not sure what's up with it.

 

100gb NAND..PNG

Disk2.PNG

DiskManage2.PNG

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4 minutes ago, porina said:

Sounds like whoever used them before had over-provisioned them. By limiting the capacity below the maximum available, the drives may perform better in some circumstances. 

 

Best thing to do is to delete all partitions on them (some may be hidden) and create a new partition of the whole space. 

 

From your last screenshot, 894GiB = 960GB, but Windows displays GiB as GB. Anyway, that appears to be the correct capacity.

Yep, it seems like after a little bit of fiddling, windows fixed them itself

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