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Community Manager

X25m 80G2C1 Speed max out at 122.8MB!


I just bought and installed the above, ran HD Tune and found out the follows:

Transfer rate:

Min: 111.2 mb/sec

Max: 122.8 mb/sec

Ave: 119.9 mbsec

Acess time: 0.1ms

Burst rate: 71.7 mb/sec

CPU Usage: 94.6%

This is way too low for the drive, isn't it? What can I do to get the advertised speed? Please help.

System Information obtained from Intel(R) Matrix Storage Console

Kit Installed:

Kit Install History:

Shell Version:

OS Name: Microsoft Windows XP Professional

OS Version: 5.1.2600 Service Pack 3 Build 2600

System Name: PORTEGER500

System Manufacturer: TOSHIBA

System Model: Portable PC

Processor: Intel(R) Core(TM)2 CPU U7600 @ 1.20GHz

BIOS Version/Date: TOSHIBA Version 1.60, 03/04/2008

Language: ENU

Serial ATA Information

Intel Serial ATA Controller: Intel(R) 82801GBM SATA AHCI Controller

Number of Serial ATA ports: 1

Driver Version:

Serial ATA Plug-In Version:

Language Resource Version of the Serial ATA Plug-In:

ISDI Library Version:

Hard Drive 0

Status: Normal

Device Port: 0

Device Port Location: Internal

Current Serial ATA Transfer Mode: Generation 1


Serial Number: CVPO9355009N080BGN

Firmware: 2CV102G9

Native Command Queuing Support: Yes

Size: 74.5 GB

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3 Replies
Community Manager


You are using a 1st Generation SATA-150 controller. X25-M will only reach higher transfer rates, if you plug it to a SATA-300 Controller (2nd generation). On such a controller, transfer rates will reach like 250MB/sec maximum for a single port. So it's a hardware limitation of your platform. Since you are using a notebook there's not much you can do unfortunately. What you won't lose though is the high random write/read performance of the drive, so it may still perform pretty well on your 1st gen SATA controller. Just for sequential reads you'll not get the optimum on that notebook.

Community Manager

Its nothing wrong.

Your chipset, ICH-7M (82801GBM), does not support 3Gb/s.

Intel Serial ATA Controller: Intel(R) 82801GBM SATA AHCI Controller

It is clearly shown in following part.

Current Serial ATA Transfer Mode: Generation 1

See the help of Matrix Storage Console for the meaning of "Generation 1."

Community Manager

A big thank-you to both GrandAdmiralThrawn and emoacht for your detailed explanations! So, I just need to use a new notebook! That gives me a good justification to persuade my wife. Haha. Thank you guys so much!