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Windows 7: HDD in laptop CD drive bay


29 Oct 2012   #1

Windows 7 Professional SP1 x64
 
 
HDD in laptop CD drive bay

Hi,

I have a few questions about putting HDD's in the slot where a cd drive normally goes in a laptop.

1) How are they cooled? Surely because cd drives don't make much heat and hdd's do there is a heat build up?

2) Linking on from that, would getting a HDD with slower rpm produce less heat, having numerous benefits.

3) If there is a heat build up, would it be wiser to put a SSD in the cd bay, and leave the HDD where it is meant to live, with all the cooling aids?

I may have other questions along the way.

Thanks in advance.
Tom

My System SpecsSystem Spec
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29 Oct 2012   #2

Windows 8 Pro (32-bit)
 
 

Traditionally laptops aren't designed for installing a HDD in the optical drive bay, and I believe the connector is slightly different.

I do believe the heat produced is negligible though...
My System SpecsSystem Spec
29 Oct 2012   #3

Windows 7 Professional SP1 x64
 
 

Yes that's why I need to get an adapter for a hdd to fit into the cd bay.
My System SpecsSystem Spec
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29 Oct 2012   #4

Win 7 Pro 64-bit 7601
 
 

1) the same way they are cooled if in their own slot, by passively heating up their surroundings. I've never seen a dedicated HDD cooling system, only idiotically placed CPU/GPU cooling pipes heating up HDDs in laptops. Theoretically, since you will be using the proper adapters aren't you? these things provide plenty of free metal around it to heat up (as a HDD is smaller than a CD drive).
Such low heat is then carried off by the airflow of the fans, or by conduction on the underside of the laptop. But HDDs aren't usually a heat issue. I had seen some of such laptops with HDDs in CD bays, and they generate less heat than if someone installed a secondary battery there (some models did offer that choice). You'll notice that there is a HDD from the heat under it (or maybe on the keyboard depending on models, as some have the CD bay higher or lower), but it's not much different from the heat from the HDD in the HDD slot.

2) not sure on either. I think it's not worth it.

3)SSDs of course have much less heat output. Again I don't see the point.
My System SpecsSystem Spec
29 Oct 2012   #5

Windows 7 Professional SP1 x64
 
 

Quote   Quote: Originally Posted by bobafetthotmail View Post
1) the same way they are cooled if in their own slot, by passively heating up their surroundings. I've never seen a dedicated HDD cooling system, only idiotically placed CPU/GPU cooling pipes heating up HDDs in laptops. Theoretically, since you will be using the proper adapters aren't you? these things provide plenty of free metal around it to heat up (as a HDD is smaller than a CD drive).
Such low heat is then carried off by the airflow of the fans, or by conduction on the underside of the laptop. But HDDs aren't usually a heat issue.

2) not sure on either. I think it's not worth it.

3)SSDs of course have much less heat output. Again I don't see the point.

Ok thanks. A few follow-on q's

1) Another point of this is: IDE is used for in the cd bay,and sata for the hdd. Is IDE slower, or are they fairly equal.

2) So are you saying that there would be no heat difference between a hdd spinning @ 7200 and 5400rpm?
My System SpecsSystem Spec
29 Oct 2012   #6

Win 7 Pro 64-bit 7601
 
 

1) IDE is slower. Should be a bit worse than sata I (and a half of sata II). But it's not something you should care of as long as you don't want to boot from it. That's 133 MB/s for IDE, 150 MB/s for SATA I and 300 MB/s for SATA I. Of course this rules out SSDs as it's a bottleneck.

2) RPM isn't the main factor in heat. You need to look how much Amps they need to run (usually clearly indicated on the label). Usually the faster ones require more amps, but it's less and less the case nowadays. The less the amps they require the less heat they generate, regardless of speed.
My System SpecsSystem Spec
29 Oct 2012   #7

Windows 7 Professional SP1 x64
 
 

Ok then. I'm particularly interested in this one, but I can't find where it says the amp requirements. Can you see if you see them? Thanks

Addition
I've just seen that it does actually say the watts required, but still not the amps.
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29 Oct 2012   #8

Windows 7 Professional SP1 x64
 
 

Continuing to look into solutions, whats your opinion on hybrid drives,
Like the seagate momentus xt?

http://amazon.co.uk/dp/B0068QO82G
My System SpecsSystem Spec
30 Oct 2012   #9

Win 7 Pro 64-bit 7601
 
 

Quote   Quote: Originally Posted by Tomtom111 View Post
Ok then. I'm particularly interested in this one, but I can't find where it says the amp requirements. Can you see if you see them? Thanks
There is nothing linked. Where am I supposed to look at?

Anyway, it should be clearly stated on the HDD, close to where it says the voltage, like this one, in the line under the SAMSUNG name.

Quote:
I've just seen that it does actually say the watts required, but still not the amps.
If you have also voltage required (and really, it should state it) you can calculate the amps following this equation.
amps = watts/volts

As a general rule of thumb, 0.5 amps (or less) at 5 volts is good. Actually if you can scavenge a HDD from an external enclosure that was operated by a single USB 2.0 cable it will do pretty well (as that's the max amps that a single USB 2 can give).

Of course, this does impact the time you can run on battery.

Quote:
whats your opinion on hybrid drives,
Uhm, no. Since it's connected through an IDE along the way, it makes no sense whatsoever to have anything better than a conventional HDD, as otherwise it's banging its head against the IDE bottleneck. Again, as long as you don't want to boot from it you won't really notice. Actually, you may not notice even if you boot from it, given that 5400 laptop HDDs are slower than that anyway. IDE is more than enough for music, movies and dumb data.

If you really want to place a better storage device (why anyway? SSD RAID for lulz? ), look if you have another sata connector placed in odd ways on that mobo, that you could pipe around with a simple sata cable.

Otherwise, if you feel brave and don't mind risking to blow up everything, you still have an e-sata port in that laptop I believe? With a bit of easy soldering you can re-route its sata II connection (yes, it's exactly the same as if the drive was internal) through a e-sata to sata cable that you will move around the laptop's internals, then connect to the additional HDD in the CD bay.

In either case of the two above hacks, the new HDD will need power and will be taking that power from the laptop's IDE connection, which is different from normal IDE as it does feature a few additional lines for power (so you have to take the soldering iron again and work on the CD bay adapter, to remove the double power/data SATA connector and place a power-only connector you can take from a ide to sata power connector).
Just find each interface schematics and you're ready to go. At your own risk anyway.
My System SpecsSystem Spec
30 Oct 2012   #10

Windows 7 Professional SP1 x64
 
 

Sorry, the hdd I didnt mention is this one:

http://www.amazon.co.uk/gp/aw/d/B005..._1&s=computers

I've looked again, only watts- no volts or amps that I could see.

And when I said about a hybrid drive I meant to go in the hdd bay, not the cd bay. So replacing the current hdd with a hybrid while keeping the cd drive where it is now.

Sorry again- sloppy posting...
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 HDD in laptop CD drive bay




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