Over Provisioning in Samsung Magician software

Hi
I've just installed a 1TB Samsung 840 Evo on my thinkpad X220 but cannot get over provisioning (OP) to work in Magician software. The SSD spacing is:
C Drive >> 430 GB
D Drive >> 490 GB
Q Drive >> 9 GB

C is my main drive for program installation whilst i keep D for data and Q is the recovery partition installed by lenovo. However when i go to OP in Magician (4.21) it automatically selects Q drive and says there is not enough space for OP ( ~ 10% >> 93 GB). How i can select my C drive for the OP? I've attached a screenshot

 

Because of the partition layout, you're boxed in.

Depending on what you did to get there, it would've been better to configure them so that the unallocated space would be at the end.

There are some tools for reconfiguring/moving partitions - but that would take someone here that could suggest the proper tool.

Short of that, the SSD should be able to use any unallocated space available, so manually shrinking the C drive should work.

Maybe others can elaborate further.

----------------------------------------


EDIT ADDENDUM:

If you're going to reconfigure things or start over, here's a suggestion:

1TB (30% OP) Calculation
1000 / cube(1.024)
931.322574615478515625 * 0.3 (Unallocated)
279.3967723846435546875 + 0.5 (System partition(s))
279.8967723846435546875 + 0.9216 (Recovery partition)
280.8183723846435546875 - 931.322574615478515625
Int(negate(-650.5042022308349609375)) * 1024
665600 / 1024

650GB

665,600 MB = 650 GB (Available space for Windows OS and Files after reserving >30% for OP)

Divide this space appropriately between the C and D partition's based on needs.

 

Yeah, just ignore Magician and shrink (any) partition manually.

Right click on Computer, select Manage, select Disk Management, select the drive you can spare some capacity from (I recommend 30% of the total drive capacity to leave as 'unallocated').



Good luck.

 

Thanks, i'll manually create a new partition for OP. But isn't 30% (~300GB !!) for OP a bit excessive? On my old Corsair Neutron GTX 480 GB SSD, it had OP built-in (physical drive capacity 512GB so around 6% for OP) and even though it was close to being full, i never experienced loss of performance. Perhaps 10% OP might be suitable as Samsung recommend?

 

First,you never partition SSD.Its not needed,SSD dont work that way.Just try to remember why we did partition with HDD and then you will see that there is no point in Partition SSDs.Just make folders.
Second,overprovision in consumers level SSD is same as free space,there is no difference,i know because i tested both free vs.unallocated.
Just use your SSD and enjoy.You can leave 15 % free so SSD can work his thing.
In fact it goes like this:the more free space you leave you will see better performance.The best way is to test it.Load 60% then bench,then leave it like that two days.Then load 10% more then test again.......

 

It's only 279.39 GB! not 300GB!

Pay the gov. tax man every paycheck and don't complain; Over pay for crummy gov. health insurance and don't complain.

Someone says that reserving 30% of an SSD's GB's will really be good for it and what is the response:

COMPLAIN, COMPLAIN, COMPLAIN!

PRIORITY ADJUSTMENT AHEAD:

AnandTech | Samsung SSD 840 EVO Review: 120GB, 250GB, 500GB, 750GB & 1TB Models Tested

I have a tin foil hat on and ear plugs in

Go ahead and fill it to: 838.1903171539306640625 GB's, 90%

No offense, all meant as humor, of sorts

 

Yes definitely,like i said,more space you leave free you will see better performance.Bigger SSD,bigger free space.
But you cant compare his workload with Anandtechs tests.For good sake Anandtech tests menage to kill 840 PRO that had factory firmware.
The best way is to test it yourself.
Load it 70% then test it with AS-SSD benchmark,then use computer your way for one or two days and let it idle some time,then load 10% more(that means 80%),then test again.If you dont see performance drooping you can go 10% more,but after that i suggest you to leave at least 10% free.

 

AnanndTech (they weren't the only ones) killed an 840 Pro (two actually) with factory firmware by secure erasing it not from testing it. Samsung corrected the problem with a firmware update.

 

Yes you are right,i didnt read last explanation from Samsung and Anandtech.

 

I have 10% as OP on my 256 840pro

 

That was a pre-release firmware that never reached the public, never shipped with any retail SSD.. Nonetheless, corrected with the following update that's a public release.

This was discussed a long time ago, the AT article also got into the specifics of pointing at the pre-release firmware... That's not an accurate portrayal of the retail 840's firmware validation.

 

I wrote factory firmware instead of pre-production firmware. To me it meant the same thing.