HDDs - IDE or SATA?
Author
Discussion

towman

Original Poster:

14,938 posts

263 months

Wednesday 13th October 2004
quotequote all
I have to admit being a complete dunce when it comes to `puters. Could somebody please explain in simple terms the difference between the two. Which is best, and do I need anything else other than the drive itself?

Thanks

Steve

docevi1

10,430 posts

272 months

Wednesday 13th October 2004
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[redacted]

Plotloss

67,280 posts

294 months

Wednesday 13th October 2004
quotequote all
SATA is a fatter pipe than IDE.

Difference is fairly marginal in the real world but as prices are very similar (say £10 difference) then its worth going for SATA if you are buying a new mobo.

If you arent then you are stuck with IDE pretty much.

JonRB

79,475 posts

296 months

Wednesday 13th October 2004
quotequote all
Just go with whatever your motherboard supports. If your motherboard supports SATA then go for that, otherwise IDE.

One thing to note about IDE is that if the motherboard supports ATA-133 then to get the full bandwidth you need ATA-133 cables which have the same connector as an ordinary IDE cable but have twice as many wires. The cables are around £4 so won't break the bank if you need to buy one.
(Of course, your HDD may come with one if you're buying a retail box. I tend to buy OEM bare drives which are much cheaper but come with nothing)

cirks

2,535 posts

307 months

Wednesday 13th October 2004
quotequote all
docevi1 said:
the only thing been you need to have either a motherboard supporting SATA, or an extra card.

does that mean by adding an additional (PCI?) card that there is a way to use a SATA drive with an IDE mobo? If so, what make, where from, etc etc. I assume that the SATA drive would only work at IDE speeds?

squirrelz

1,186 posts

295 months

Wednesday 13th October 2004
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Plotloss said:
SATA is a fatter pipe than IDE.
Oh no it's not! its a faster pipe.

Drives with the 40 pin connector are Parallel ATA, whereas SATA stands for Serial ATA.

Yes, I'm just being pedantic, and you meant a fatter pipe in terms of bandwidth

Podie

46,649 posts

299 months

Wednesday 13th October 2004
quotequote all
squirrelz said:

Plotloss said:
SATA is a fatter pipe than IDE.

Oh no it's not! its a faster pipe.

Drives with the 40 pin connector are Parallel ATA, whereas SATA stands for Serial ATA.

Yes, I'm just being pedantic, and you meant a fatter pipe in terms of bandwidth



SATA is still limited though, due to the speed of the bus… but if you're buying new get SATA.

Getting techy, you need to consider the speed of the drive (spin rate) and seek and write times, as well as the cache on the drive. IDE has a theoretical max transfer of 133… whereas SATA is only rated at 150… not much in it for most home users...

JamieBeeston

9,294 posts

289 months

Wednesday 13th October 2004
quotequote all
Podie said:
IDE has a theoretical max transfer of 133… whereas SATA is only rated at 150… not much in it for most home users...


Especially given no drive techology can come close to those speeds yet.

last I saw drives were pushing 60mb/s to thier interfaces.

Dont forget, alot of the 'SATA' drives are just PATA drives with a SATA controller card on them.

Same physical drives!

Podie

46,649 posts

299 months

Wednesday 13th October 2004
quotequote all
JamieBeeston said:

Podie said:
IDE has a theoretical max transfer of 133… whereas SATA is only rated at 150… not much in it for most home users...



Especially given no drive techology can come close to those speeds yet.

last I saw drives were pushing 60mb/s to thier interfaces.

Dont forget, alot of the 'SATA' drives are just PATA drives with a SATA controller card on them.

Same physical drives!


now we're getting techy! :geek:

roop

6,018 posts

308 months

Wednesday 13th October 2004
quotequote all
There's naff all in it between PATA and SATA IMHO. If you want speed look at the seek time, platter rpm and capacity of the drive with capacity making the biggest difference.

My new PC came with a single 400GB SATA HDD (biggest I could get - couldn't afford to stripe two ). On higher capacity disks, because more data is stored on the same sized platters, the data desity is higher. This means that a 7,200rpm drive of 400GB capacity reads and writes way faster than a 7,200rpm drive of, say 120GB capacity because the heads are moving over a greater amount of data per second on the bigger drive due to the higher density. In home use, you'll never hit the capacity of an ATA bus let alone SATA. SATA does have nice neat connectors and cabling though instead of those fat ribbons.

RobDickinson

31,343 posts

278 months

Wednesday 13th October 2004
quotequote all
Only real difference , apart from the cable , is the drivers.

Windows is a bugga to install with an SATA drive unless you have the drivers on floppy already...

On a performance basis theres nothing in it.

towman

Original Poster:

14,938 posts

263 months

Wednesday 13th October 2004
quotequote all
Sorry guys, but I got a bit lost after about the third post!

Can I sum up like this? Old Mobo (learnt a new techie term!) = IDE. When i get a new one = SATA.

How to tell if mobo will support SATA?

Thanks to all for help.

Steve

towman

Original Poster:

14,938 posts

263 months

Wednesday 13th October 2004
quotequote all
Oh yeah - just to add to the confusion, whats a SCSI drive?

Steve

Plotloss

67,280 posts

294 months

Wednesday 13th October 2004
quotequote all
If there is a long thin connector with about 40 little pins on the board thats IDE

If there are small orangey type connectors thats SATA

If the mobo is more than 12 months old its almost certain to be IDE.

SCSI is quicker but a LOT more expensive so not really worth bothering with for home use IMHO.

towman

Original Poster:

14,938 posts

263 months

Wednesday 13th October 2004
quotequote all
Thanks very much

ThatPhilBrettGuy

11,810 posts

264 months

Wednesday 13th October 2004
quotequote all
Plotloss said:

If there are small orangey type connectors thats SATA

Or black or white...