Identical Drives (New) but different write speeds?!

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69ingChipmunkzz

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Jan 9, 2013
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I've recently gotten two Seagate 7200rpm 1TB HDD's both are very empty.
But on DXtory My C Drive's write speed is at most 191mb/s and the Second drive is 152mb/s.
I need the second drive to be as fast as the C Drive to record 1080p!

Also, anyone know why my computer makes a really loud BBRRRHHHH noise when the system is woken up?
 
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gbryan101

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May 28, 2013
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Does the noise sound like it's coming from a hard drive (sounds sort of like an RC car motor) or from a fan?

As for the speed difference, it happens. My last two Seagate 1TB disks were both around 120MB/s. Make sure they are both on the same controller, using good cables, adequately powered.

Now, if a drive is making unusual noise and is slower, run a diagnostic on it. I use Parted Magic from a bootable disk.
http://partedmagic.com/doku.php?id=start
 
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69ingChipmunkzz

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I think the noise is the fan. All I know that the sound comes from the front of the computer. On my previous drive I had the same problem so it makes sense that its the fan.
Do I get it replaced?

The description of the Drive is 600mb/s and 64mb Cache.
http://www.ebuyer.com/319639-seagate-1tb-barracuda-internal-hard-drive-oem-st1000dm003
Ive changed the wire and slot in the motherboard over so it is different but no real change :/
 
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gbryan101

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If it's a fan, it should be easy enough to replace. A case fan going out usually isn't the biggest deal, provided it isn't your only one or something. If the noise bothers you, figure out what fan it is and replace it. Otherwise, I would probably just let it go for now.

That 600MB/s is the absolute peak performance that the drive is ever capable of attaining. In practice, it will never happen. You are interested in sustained rates, which are much, much lower.

http://www.expertreviews.co.uk/internal-hard-drives/1296274/seagate-barracuda-1tb

You can read what they are getting in large file transfers, 105.4MB/s. I can usually do a bit better in synthetic benchmarks, but that's about all there is to these drives. I don't know your system specs, but I imagine you have one drive with your OS as a boot disk and the other as mass storage. If you have another HDD lying around, you could put it and the 1TB storage drive in RAID 0 and see if that's fast enough for you. If it works, get something more permanent.
 
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69ingChipmunkzz

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The faster one is my OS drive and the slower one is my second drive. i couldnt affford an SSD
 
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69ingChipmunkzz

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6d5e439dedbc75e90c8c0ece16feb3b6

0ec4092141bf54c2d1c514c8f5250fc1

I hope that helps you,
 
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gbryan101

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You can try creating two partitions, one on each hard drive, and then putting these in RAID 0 or striping them using dynamic disks. For the sake of simplicity, I would just try using dynamic disks. I am suggesting this to see if we can get the performance you need from the hardware you have. Be careful not to delete anything you need or damage your Windows install and backup before you do this.

Here is rundown of the process using dynamic disks: http://technet.microsoft.com/en-us/magazine/ff382722.aspx

I am going to be out for the night, but I should have my phone if you have questions.
 
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fzabkar

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The serial numbers (Z1Dnnnnn and S1Dnnnnn) indicate that both drives have a single 1TB platter.

Perhaps the slower drive is being affected by a SATA 1 interface limit (1.5Gbps)? If so, then a HD Tune read benchmark graph will show a long flat plateau at the outer zones.

 
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69ingChipmunkzz

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I'll look into when I get back from school, thank you
 
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