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Disable NCQ Firmware

B

bekax5

Limp Gawd
Joined
Jun 4, 2012
Messages
132
Hi guys,

Is there anyway to Disable NCQ for specific disks via Firmware?

I have 2 SSD which I would like to leave enable and 8 HDD which I would like to disable.
But I cannot do this via the Raid Controller Card since it Enables/Disables it for the whole system.
 
Easiest option would be to get a 2nd raid controller.

But would you want it the other way around? Disable it on the SSDs and Enable it on the HDDs?
 
Spazturtle said:
But would you want it the other way around? Disable it on the SSDs and Enable it on the HDDs?
Click to expand...

NCQ dramatically speeds up 4K transfers. To quote Samsung, who knows a thing or two about making fast SSDs:

"Because SSDs enjoy extremely fast speeds, storage is no longer the bottleneck of a PC system. NCQ helps an SSD deal with situations where it finds latency on the host, a phenomenon unheard of with traditional HDDs. Additionally, NCQ allows the SSD controller to process commands in parallel, improving performance and reducing latency."

I guess the question is why the OP wants to disable it on HDDs.
 
NCQ is your friend, I can't imagine why you would want to disable it. It's a quite a step backwards.


The easiest way is to go into your motherboard's BIOS and change the ports you want without NCQ to "IDE" mode.


AHCI - hotswap and NCQ enabled.
IDE - hotswap and NCQ disabled.
 
Well I am using an Areca 1880 which is quite a bit expensive so I would prefer to try to disable it in another way :p

I want it Enabled on the SSDs because there's just a huge improvement in speeds.

But Disable it on the HDDs because they seem to not respond nice to NCQ, I get 150-200 MB/s average on my HDDs and 800-1000 MB/s without NCQ!

That is why, there's just a huge bottleneck in sequencial speeds when using the NCQ on the HDDs

Since they all are on the Raid Controller, change AHCI on the BIOS will not affect them right ?
Correct me if I'm mistake, there was some kind of application from hitachi I guess, that could change specific settings in the disks firmware ? I guess it was ftool but I couldn't find it anywhere.
 
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