Samsung 120gb EVO slow on sata2 and IDE Mode! Need some solutions.

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Anarghya

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It was just by last week that I bought my first SSD,the Samsung EVO 120gb.It was normal to think O.S would runon it and quite the same to do some.No problem,whatsoever!,a clean and fresh Windows 8.
After using Samsung Magician to benchmark and further more with CystalDisk and AS SSD tool,it was quite a disappointment.Though,knew I had SATA2 with no AHCI (ICH7)support motherboard,it wasn't the speed that bothered me,it was Random Read IOPS.And the shunted lateny.

Samsung recommended speed of 94000 iops were just humongous to mere 9600 iops of mine.
{Samsung Magiciam}
Sequential read-256MBPS
Sequential write -248MBPS
Random read-9589 IOPS
Random writes-22246 IOPS

tried updating controllers,bios and everything logically possible,but in vain.IS there any way to get the most of this SSD?
SPECS:
Intel Core 2 Duo E7500 @3.75GHz
Asus P5QPL-AM G41 Chipset Motherboard.http://1
Zotac Nvidia GTX 650 AMP! 2GB GDDR5
Kingston DDR2 1066Mhz CL6
 
Solution
bignastyid


That SSD is capable of saturating the SATA II bus so yes it will be noticable. With you standard 7200rpm HDD the difference between sata II and III would almost unnoticeable, but with a fast SSD it would be a bottleneck.
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Tcinator

Tcinator

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may be the allocation unit size on the drive. may want to check that out. but ssds tend to need a settling period of a few days after install to be optimal. after install. leave the pc on but without doing a lot of IO operations. helps the ssd out quite a bit. that advise may be outdated for the newer SSDs or not apply to you at all but I thought it was worth mentioning.
 
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bignastyid

bignastyid

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Jun 19, 2011
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That SSD is capable of saturating the SATA II bus so yes it will be noticable. With you standard 7200rpm HDD the difference between sata II and III would almost unnoticeable, but with a fast SSD it would be a bottleneck.
 
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Anarghya

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Well..that would be ultimate,but is there something I am missing? something with the motherboard or cables or controllers?There just isn't anything to do about AHCI on this motherboard?Or some feature that I should have let it on or off?
 
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Its_Byte_00

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IDE Speed: 133 mega bits per second. /8 = 16.625 Megabytes per second.

ATA I, known as SATA 1.5Gb/s, is the first generation SATA interface running at 1.5 Gb/s. up to 150MB/s.

SATA II, known as SATA 3Gb/s, is 2nd SATA interface running at 3.0 Gb/s. up to 300MB/s.

SATA III, known as SATA 6Gb/s, 3erd SATA interface running at 6.0Gb/s. up to 600MB/s.

so to sum it up,

Samsung 840 EVO 120gb speed: 550MBps / 550 megabytes ( MB not mb)
IDE speed: 16.625 MBps - Too slow.
sata speed: 150MBps - Too slow.
sata II speed: 300MBPS - Too slow.
sata III speed: 600MBps - Fast enough.
 
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Anarghya

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I'd settle in already it is rated to write about 0.30TB
 
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stickmansam

stickmansam

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It would bottleneck in tests and so forth but iun light desktop workloads, it would be imperceptible
 
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Anarghya

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Yeah,I'm realizing the importance of a balanced system.Thought that it would be no harm to run on this config...
Ended up real bad.The thing is the boot speed from my WD Black( very well maintained) and this not a difference that I would call it A DIFFERENCE!, But this is much faster than that.I just held its neck tight.
 
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Its_Byte_00

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are you certain that its 133 megabyes not megabits?

anyways i though he was using a sata to ide adapter cable

also running those crystal mark 1000MB benchs on your SSD over and over isnt very good for the life of it.
 
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Anarghya

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I'm just using the usual SATA cable,the motherboard only supports SATA2 in IDE mode.But I have 4 SATA2 ports,is there ant possibility of gaining performance by changing the ports.(like using native intel ports or something).There is no mention of those intel or asmedia ports.About Motherboard HERE http://
 
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Anarghya

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Thanks all of you for the responses!.Anyway I enabled the RAPID mode and guess what........:XD Unbelievable performance
Sequential read-1569 MBPS
Sequential write-2294MBPS
Random Read-100650IOPS
Random Write-74521IOPS

DUnno what happened,before I had tried this rapid and I didn't get 1/5 the performance.Must be the sata controller driver update for the old Mobo.But isn't This Abnormal!
EDIT-I also updated Samsung Magician to V4.4
 
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Anarghya

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By using Rapid mode I can increase the life of SSD?
 
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Its_Byte_00

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if you read the toms artical it would help you under stand because this wont make a ton of sense.

Photoshop.

Lets say you stitch together 20 20MP images. instead of stitching 1 + 2 +3 +4 +5 ect ect and writing and deleting on your ssd its going to write to ram and delete from ram then finally save to your drive when its done.
 
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Anarghya

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Well.I wanted to make sure about the speeds,and here they are.Now these are in RAPID
Screenshot_1_zps790fe3d8.png
 
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