Hi,
I've just bought a new PC. There are 3 HDDs used separately (no RAID):
HDD#1: WD7501AALS-00E8B (750 GB)
HDD#2: WD1001FALS-55J7B (1 TB)
HDD#3: WD1001FALS-55J7B (1 TB)
My problem is that HDD#1 seems not to perform as fast as expected. Here are benchmark results from HD Tune Pro 4.00 trial (average transfer rate, access time):
HDD#1: 67.0 MB/s, 12.5 ms
HDD#2: 88.1 MB/s, 12.5 ms
HDD#3: 86.4 MB/s, 12.2 ms
According to the specs both of these HDDs should have the same transfer rate. Could anyone please advise why they haven't?
My PC spec:
CPU: Intel Core i5-750
RAM: 8 GB DDR3-1333
MOBO: Gigabyte GA-P55M-UD2 REV 1.0
Latest BIOS
Both Intel and Onboard SATA mode set to AHCI
Using Native SATA mode
OS: Windows 7 Pro x64
Clean Windows installation, no antivirus/antimalware or other software installed (only drivers + HD Tune Pro 4.00 trial)
HDD#1 has 2 partitions: system partition (100 MB) and the rest of disk space is taken by Windows
Latest drivers from Gigabyte site (Intel chipset driver, Intel SATA driver, GA SATA driver and others)
Writing to disk cache is enabled for all 3 HDDs in Device manager
Full scan using CHKDSK and HD Tune Pro revealed no disk errors for all 3 HDDs
HD Tune says the stabdard is ATA8-ACS - SATA II, UDMA Mode 6 (both supported and active) for all 3 HDDs
AAM is enabled and the value is 254 (0xFE) for all 3 HDDs
I have spent several days finding out the culprit, but no luck whartsoever. Please kindly advise. Thank you in advance.
I've just bought a new PC. There are 3 HDDs used separately (no RAID):
HDD#1: WD7501AALS-00E8B (750 GB)
HDD#2: WD1001FALS-55J7B (1 TB)
HDD#3: WD1001FALS-55J7B (1 TB)
My problem is that HDD#1 seems not to perform as fast as expected. Here are benchmark results from HD Tune Pro 4.00 trial (average transfer rate, access time):
HDD#1: 67.0 MB/s, 12.5 ms
HDD#2: 88.1 MB/s, 12.5 ms
HDD#3: 86.4 MB/s, 12.2 ms
According to the specs both of these HDDs should have the same transfer rate. Could anyone please advise why they haven't?
My PC spec:
CPU: Intel Core i5-750
RAM: 8 GB DDR3-1333
MOBO: Gigabyte GA-P55M-UD2 REV 1.0
Latest BIOS
Both Intel and Onboard SATA mode set to AHCI
Using Native SATA mode
OS: Windows 7 Pro x64
Clean Windows installation, no antivirus/antimalware or other software installed (only drivers + HD Tune Pro 4.00 trial)
HDD#1 has 2 partitions: system partition (100 MB) and the rest of disk space is taken by Windows
Latest drivers from Gigabyte site (Intel chipset driver, Intel SATA driver, GA SATA driver and others)
Writing to disk cache is enabled for all 3 HDDs in Device manager
Full scan using CHKDSK and HD Tune Pro revealed no disk errors for all 3 HDDs
HD Tune says the stabdard is ATA8-ACS - SATA II, UDMA Mode 6 (both supported and active) for all 3 HDDs
AAM is enabled and the value is 254 (0xFE) for all 3 HDDs
I have spent several days finding out the culprit, but no luck whartsoever. Please kindly advise. Thank you in advance.