HDD not running at rated 6gb's speeds?

[Dan3345]

So I was in my mobo bios on my asus P8Z68 Deluxe/Gen3 and I noticed it said that all marvel controllers are rated at 6gb' per second as are the Intel controllers beneath them. So that means I have a total of 8 6gb's per second SATA controllers and 8 3gb's SATA controllers.

 

I am a bit confused though because windows and my bios, and my Marvell BIOS all say that my HDD which is a Hitachi 1TB 7200RPM 48mb cache is running at 3gb per second. I have it plugged into the Marvell controllers which I know can have issues but I should be getting the right speeds at least shouldn't I?

[FMod]

The only mention of HDD with 48MB caches google can find is this thread...

Forget about it, not like it matters for anything. Your drive probably doesn't support SATA at 6 gbit/s. Its actual speed is just 1 gbit/s anyway.

[Dan3345]

Well I could be wrong, 48mb is a bit off..

 

Im simply going by what the marvell controller bios are telling me. I can't find anything else that can tell me much about my HDD, save for the box which I no longer have.

Edited May 6, 2012 by Dan3345

[FMod]

It's not that it's too much, I just don't think they ever made 48MB cache HDD. It can be 16MB, 32MB, 64MB - the cache today is just one memory chip, and these only come in powers of two.

 

Don't worry about it, it doesn't matter for your HDD. 6 GB/s SATA matters for SSD, maybe sometimes for WD VelociRaptors.

[eltucu]

Does your Hitachi HDD support SATA 3/6Gbps ?

 

Still, if the HDD doesnt surpass the 200Mb/s mark (most reach at most 150Mb/s), it wont make a difference.

 

SATA 2 officially supports up to 300Mb/s but SSDs that work between the 200Mb/s and 300Mb/s range usually benefit from SATA 3 anyway.

[Erik005]

This is the only drive that has sata3: Hitachi HDS721010DLE630, 1TB. If you don't have this specific model you don't have sata3.

 

Not only the controller has to have sata3c the hard-disk also has to have sata3.

[Dan3345]

Thanks for the input, I hate HDD's.. Of all the parts and builds I have done over the years the HDD is always the most annoying. I always assume they are the simplest and then find out they are not.

 

And anyways I have another question that instead of making a new topic I will simply post here.

 

My friend is upgrading his videocard. He has a board with lga1155 and an i7 2600K installed. The board supports pcei3.0 in two lanes. Since he does not have ivy bridge we both know the pcei3 video card (GTX 670 to be exact) will not run at triple bandwidth. Is this going to be a huge loss in performance? The drivers are immature but once they get solid will there be such a large gap in performance between full bandwidth on pcei3 and pcei2 that having a pce3 card in a pcei2 is useless?

 

No point in upgrading if he won't see the power he wants. And in case you were wondering. He does not want to change out his CPU. He doesn't like ivy bridge, and quite frankly I'm not too thrilled with it either.

[hoofhearted4]

there is no card out that takes Advantage of PCIe3.0. there is almost 0% difference between running a card on PCIe3.0 or 2.0.

 

 

and yea, there is absolutely no reason to go from SB to IB. IB is only for those who are upgrading from even older systems, or building on from scratch (like me)

Edited May 13, 2012 by hoofhearted4

[Erik005]

There is problem with the ivy bridge processors, when you overclock them they get very hot.

 

Some think it's a strategy by Intel to sell the remaining sandy bridge stock, and increase the sale of socket 2011. That last one worked for me :wink:

[Dan3345]

I don't know about that. Tri-gate transistors add a new dimension to the cpu. Instead of dissipating heat up and out, now it goes up and through the sides. I think the problems with heat with ivy bridge are a side effect of trying to fit so many transistors simply by cheating. Cheating by going 3d.

 

Moore's Law anyone?