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Well a lot of the faster SSDs get over 200MB/s on sequential reads. A 1.5Gbps SATA would therefore create a bottleneck and restrict it to something below 150MB/s (need to allow some for overhead).

So I think we can just say, yes, if it restricts your speed to 1.5Gbps it's a problem. 3Gbps is fine for almost all SSDs, only the very latest exceed that and also only on sequential.
Where SSDs beat HDs by 10x or more is small random read/write which is usually well short of 100MB/s for even the fastest SSDs currently on the market. Edit: Just read the above, looks like random write is now up to 170MB+ for some SSDs. WOW!! In that case, a 1.5Gbps SATA port will definitely slow you down.

What you say makes perfect sense. Wouldn't want to buy a ferrari and then use it with a gearbox stuck in 2nd gear.

I've just rechecked the system profile page and now it appears as 3Gbps.
Something fishy is going on wither edit:either with the smk312 optibay or my system.
I did a clean install of 10.6.3 install from a bootable firewire 800 HDD and then installed all updates.
here is a pic
http://img546.imageshack.us/i/smk312optibay3gbps.jpg/

Can anyone recommend a comprehensive test to find out if the smk312 optibay is indeed 3GBps or 1.5 Gbps?

Thank you all for your valuable insights.
 
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I'm also very curious to hear why this may be - 1.5 going to 3.0 on it's own. Did you change anything? I noticed the BSD name changed... whatever that is.
 
On cheap Optibays and adopting early.

What you say makes perfect sense. Wouldn't want to buy a ferrari and then use it with a gearbox stuck in 2nd gear.

Can anyone recommend a comprehensive test to find out if the smk312 optibay is indeed 3GBps or 1.5 Gbps?

Yeah, it makes sense, but who cares?

Unless you're putting in a 6 Gbps SSD, would you really call your 3 Gbps SSD a "Ferrari" model or maybe just a cheap Porsche? ;) I think the "early-adopter" tax of putting in a 3 Gbps SSD when the 6 Gbps models are around the corner is greater than the nominal performance hit of the 1.5 Gbps controller on a 3 Gbps-capable SSD, especially considering none of these (correct me if I'm wrong) SSD's we're putting in take full advantage of 3 Gbps controllers--they all peak at like 250 MBps, max. That's 50 Mbps you're NOT using getting out of your 3 Gbps controller. Right?

Maybe I'm just saying that because I jumped the gun and ordered one of the 1.5 Gbps eBay Optibay models (whoops!) without doing enough research :p . I'm having MicroCenter install the Kingston V100+ that Costco shipped me instead of the failure-prone V100 this weekend. Sure, I'm going to take a little hit with this 1.5 Gbps bottleneck, of what--30 Mbps max?? It's still going to be an improvement over the slow 5400 RPM stock HD that my 2011 15" MBP shipped with, to the tune of what, at least 3-7x, right? Not to mention the increased reliability.

In a few months the 6 Gbps SSD's will come down and price and I'll just swap my cheap eBay Optibay and Kingston V100+ out for the OWC data doubler and a 6 Gbps SSD, and put this kit in my wife's Penryn MBP instead.

I'm not a gamer, I'm a power user just like most of the rest of you on this thread; 80 Mbps isn't going to ruin the upgrade for me or hardly anyone else.

I'm going to call MCE here shortly and find out what speed the original Optibay is, for the record. BTW, aren't we all overlooking that MCE's solution come with the external Superdrive enclosure for $99? Seems to me like they're still a contender. I'm surprised you all have dismissed them so quickly.

I just can't wait to have this 5400 RPM POS out and my new Seagate Momentus 7200 RPM 750 GB drive in its place. By the way, I'm putting the Segate into the current HD slot for sound dampening and SMS as the 750 GB model DOES NOT have Seagate's G-Force sudden motion sensor (only some 250GB and 500 GB models do).

Note: my Kingston V100 from Costco failed within two weeks. I returned it and reordered with the new $90 discount and they shipped me a V100+ instead! BTW, DO NOT USE THE V100. It has a high failure rate.

If you haven't ordered the eBay or Amazon model yet, then go for the OWC Data Doubler and be ready for the 6 Gbps SSD's down-the-road. That's what I say. As usual, OWC knows what the deal is.

Edit: MCE told me their kit peaks at 3 Gbps. Newmodeus just told me on their Facebook wall that their kit is "pass-through" so it'll hit 6 Gbps if you've got it. OWC's website says it will get 6 Gbps. Sounds like OWC or Newmodeus *is* a better product. Whatever, I'll hold my ground...maybe. ;)
 
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After a lot of looking around in this forum, I installed the MaxUpgrade kit today. I was quite impressed by the build quality, with it being CNC'd aluminum and nice and sturdy.
I had purchased a $20 optibay off of eBay and though I guess it would have worked, it was rather flimsy and lacked a lot of the attachment points that the better kits have.
I also like the external (and very Mac-like) optical drive holder that MaxUpgrades sells as part of the kit.
 
Got my eBay optidrive caddy today. It wasn't from the same seller that many people here deal with, although it looked similar.

My link and negotiated speeds show up as 3Gbit, so I'm happy.

Installation worked great, although it took some tweaking to make it fit properly - but all-in-all it was worth the $70 savings.
 
Thanks much! I think I'll go with this NewModeUS (which fits 9.5mm & 12.5mm).

Now I just have to figure out if I should go with a 750GB (7200rpm) or 1TB (5200rpm). If the 1TB is quite slow than I might just take the 750GB.

1tb platters are denser so the head doesnt have to move as far... R/W speeds will be pretty close between the two.
 
1tb platters are denser so the head doesnt have to move as far... R/W speeds will be pretty close between the two.

Thanks again! One last thing, I heard some guy talking about the 2.5" 1tb drives being new and unproven so he wouldn't trust his data on them. Do you think they're safe and ok to use at this point, or is the failure rate just to high?

I'm thinking of getting a Seagate GoFlex "for Mac" (1tb) external for backups. Seagate announced they'll release a ThunderBolt cable for this drive. :cool:
 
Thanks again! One last thing, I heard some guy talking about the 2.5" 1tb drives being new and unproven so he wouldn't trust his data on them. Do you think they're safe and ok to use at this point, or is the failure rate just to high?

I'm thinking of getting a Seagate GoFlex "for Mac" (1tb) external for backups. Seagate announced they'll release a ThunderBolt cable for this drive. :cool:

The 1tb 2.5" drives have been out for a while...as with any electronic some will fail though.
 
The 1tb 2.5" drives have been out for a while...as with any electronic some will fail though.

Yeah, I figured it'd be fine. Looking at NewEgg, this Samsung looks like my best bet. Not sure if it has a built in motion sensor though.

After doing a search and reading all the negative comments on this forum regarding putting a SSD in the main slot, and a HDD in the Optibay, I'm starting to wonder if it's worth the hassle. Like drives corrupting from no motion sensor and crap. But I never move my laptop 1 inch unless it's in sleep mode or shutdown. :confused:
 
Yeah, I figured it'd be fine. Looking at NewEgg, this Samsung looks like my best bet. Not sure if it has a built in motion sensor though.

After doing a search and reading all the negative comments on this forum regarding putting a SSD in the main slot, and a HDD in the Optibay, I'm starting to wonder if it's worth the hassle. Like drives corrupting from no motion sensor and crap. But I never move my laptop 1 inch unless it's in sleep mode or shutdown. :confused:

MBPs have a built in SMS which affects the main hd spot, not the optibay spot. I have had my ssd in both spots and it works fine in both, but I moved hdd to normal spot because it was not spinning down but I think that was an XT issue because I put stock HDD back in and its fine so far.
 
Thanks much! I think I'll go with this NewModeUS (which fits 9.5mm & 12.5mm).

Now I just have to figure out if I should go with a 750GB (7200rpm) or 1TB (5200rpm). If the 1TB is quite slow than I might just take the 750GB.

My NewmodeUS has been working perfectly for over 1 year. Service was excellent too.
The only issue I see with mine is that you need to take it out in order to replace the SSD - I'd like to be able to freely swap without uninstalling the adapter.
 
i´m having an issue with hard drive spining. I have The SSD on original HD bay and my western digital scorpio on optibay. If i eject the WD from the finder it spinsdown. If i unmount it it spinsdown after a minute.

If i put the computer to sleep and wake up the disk spinsup and i have to mount and unmount the disk so it can spindown...

Do you have a solution for this?
Is this happen if i put the western digital in original HD bay?
 
i´m having an issue with hard drive spining. I have The SSD on original HD bay and my western digital scorpio on optibay. If i eject the WD from the finder it spinsdown. If i unmount it it spinsdown after a minute.

If i put the computer to sleep and wake up the disk spinsup and i have to mount and unmount the disk so it can spindown...

Do you have a solution for this?
Is this happen if i put the western digital in original HD bay?

You can change the amount of time the drive has to be inactive before it sleeps by doing this in terminal

sudo pmset -a disksleep X

replace x with number of minutes it needs to be inactive before it sleeps.

If you still have a problem I would swap the drive positions and see if that works out.
 
Can anyone confirm being able to install a 12.5mm (like the 1TB drives) in their 13" unibody MBP's optibay slot with either the maxupgrades adapter or the OWC data doubler?

I want to upgrade to the 2011 13" MBP, but it appears that the optical bay has only SATA II and thus would limit the next-gen SSD's coming out (Intel 510, Vertex 3, etc), so the SSD must go in the main bay. Question is if the 12.5mm drive fits, then I can drop a 1TB in the optibay, rather than go down to 750GB.
 
Does anyone know if the MaxUpgrades optibay supports 3 Gbps?

I just installed it yesterday and it show 1,5 Gbps at the preferences. Just wondering if it's because I put an old 2008 Fujitsu 160Gb hard drive in it or could it be that it only supports the 1,5 Gbps uplink?

Waiting for an SSD disk and putting my 500Gb in it so does it really matter? Maybe in the future if I put an SSD to the optibay?

Thanks!
 
Does anyone know if the MaxUpgrades optibay supports 3 Gbps?

I just installed it yesterday and it show 1,5 Gbps at the preferences. Just wondering if it's because I put an old 2008 Fujitsu 160Gb hard drive in it or could it be that it only supports the 1,5 Gbps uplink?

Waiting for an SSD disk and putting my 500Gb in it so does it really matter? Maybe in the future if I put an SSD to the optibay?

Thanks!

Yes it supports 3.0
 
good morning,

I am interest in buying this for my 2010 MBP i7, I have a current 256SSD in the first drive, I want to add more space I was originally going to buy the ayagroup one http://www.ayagroup.com/product.php?productid=17773&cat=325&page=1

but after reading for a while now I am confused, I want a good optibay that doesn't required modifications, I don't want to have to cut anything and I don't want to lose speed. if money was no issue which one do you recommend. I would also like it to fit the 2011 model as I may be upgrading in the future like 6 months. Thank you.
 
Just found this on an Australian online retailer: http://www.macfixit.com.au/shop/index.php?_a=viewProd&productId=1691

It's a Fenvi bracket, and it's only 29$ :) The case for the superdrive shipped with this thing is only $60 for me :)

Thing is: does this thing support SATA3, it says 9.5mm drives and smaller as well. Is that going to be a problem for the 2011 7200rpm 500GB HDD?

EDIT: oh wait, SATA3 is useless anyway. Forgot.
 
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