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Hardware and Windows Vista Hardware issues in relation to Windows Vista. (microsoft.public.windows.vista.hardware_devices) |
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Please help with hard drive problem
Hi
I have a PC with Vista Ultimate, 2.66 CPU and 3 Gb RAM, the PC has two hard drives C: and D: The C: drive is a Raptor 150Gb 10,000 RPM drive and the D: drive is a Seagate 500 Gb 7,200 RPM. I do not believe I am getting the performance speed I should from the faster C: drive Comparative speeds are Avg Transfer Rate - C: 71.0 MB/sec - D: 62.8 MB/sec Access Time - C: 8.5 ms - D: 13.6 ms Burst rate - C: 85.7 MB/sec - D: 102.9 MB/sec Would anyone with knowledge of how Hard Drives are meant to work please comment on these figures, would you say I had a problem. Thanks for any help and advice regards Daniel |
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Please help with hard drive problem
Are they both SATA 300 drives?
Without knowing the details of the Avg Transfer Rate test it is hard to determine why C does not do as much better then D as it does in the other two tests which appear to definitely able to take advantage of the faster RPM. "Daniel" wrote in message ... Hi I have a PC with Vista Ultimate, 2.66 CPU and 3 Gb RAM, the PC has two hard drives C: and D: The C: drive is a Raptor 150Gb 10,000 RPM drive and the D: drive is a Seagate 500 Gb 7,200 RPM. I do not believe I am getting the performance speed I should from the faster C: drive Comparative speeds are Avg Transfer Rate - C: 71.0 MB/sec - D: 62.8 MB/sec Access Time - C: 8.5 ms - D: 13.6 ms Burst rate - C: 85.7 MB/sec - D: 102.9 MB/sec Would anyone with knowledge of how Hard Drives are meant to work please comment on these figures, would you say I had a problem. Thanks for any help and advice regards Daniel |
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Please help with hard drive problem
"Daniel" wrote in message ... Hi I have a PC with Vista Ultimate, 2.66 CPU and 3 Gb RAM, the PC has two hard drives C: and D: The C: drive is a Raptor 150Gb 10,000 RPM drive and the D: drive is a Seagate 500 Gb 7,200 RPM. I do not believe I am getting the performance speed I should from the faster C: drive Comparative speeds are Avg Transfer Rate - C: 71.0 MB/sec - D: 62.8 MB/sec Access Time - C: 8.5 ms - D: 13.6 ms Burst rate - C: 85.7 MB/sec - D: 102.9 MB/sec Would anyone with knowledge of how Hard Drives are meant to work please comment on these figures, would you say I had a problem. Thanks for any help and advice regards Daniel It might because the bits are bunched together much tighter on the 500GB drive. The read/write head doesn't have to move as much because there's more bits per track than on the 150GB. This also means more bits fly under the read/write head on the 500GB drive even though it has a lower RPM. |
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Please help with hard drive problem
Probably, Tae Song put the finger on it. Check the areal density (AKA bit
density) spec of both drives. In general, drives with higher numbers tend to be capable of greater data transfer speeds given identical conditions otherwise. Tom Ferguson "Daniel" wrote in message ... Hi I have a PC with Vista Ultimate, 2.66 CPU and 3 Gb RAM, the PC has two hard drives C: and D: The C: drive is a Raptor 150Gb 10,000 RPM drive and the D: drive is a Seagate 500 Gb 7,200 RPM. I do not believe I am getting the performance speed I should from the faster C: drive Comparative speeds are Avg Transfer Rate - C: 71.0 MB/sec - D: 62.8 MB/sec Access Time - C: 8.5 ms - D: 13.6 ms Burst rate - C: 85.7 MB/sec - D: 102.9 MB/sec Would anyone with knowledge of how Hard Drives are meant to work please comment on these figures, would you say I had a problem. Thanks for any help and advice regards Daniel |
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Please help with hard drive problem
Hi
both are SATA drives, I really do not know how to find out if they are SATA 300 The drives are C: WDC WD1500ADFD 00NLR5 D: ST 3500830AS, does that mean anything. In Intel Matrix Storage control it lists the C: WDC drive as ATA Transfer mode: Generation 1 and the D: Seagate as ATA Transfer mode: Generation 2 But I have no idea what that refers to, but it worries me because it is different. thanks Daniel "Curious" wrote in message ... Are they both SATA 300 drives? Without knowing the details of the Avg Transfer Rate test it is hard to determine why C does not do as much better then D as it does in the other two tests which appear to definitely able to take advantage of the faster RPM. "Daniel" wrote in message ... Hi I have a PC with Vista Ultimate, 2.66 CPU and 3 Gb RAM, the PC has two hard drives C: and D: The C: drive is a Raptor 150Gb 10,000 RPM drive and the D: drive is a Seagate 500 Gb 7,200 RPM. I do not believe I am getting the performance speed I should from the faster C: drive Comparative speeds are Avg Transfer Rate - C: 71.0 MB/sec - D: 62.8 MB/sec Access Time - C: 8.5 ms - D: 13.6 ms Burst rate - C: 85.7 MB/sec - D: 102.9 MB/sec Would anyone with knowledge of how Hard Drives are meant to work please comment on these figures, would you say I had a problem. Thanks for any help and advice regards Daniel |
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Please help with hard drive problem
As best I can determine the Raptor is a SATA 1.5 (150) and the Seagate is
SATA 3(300) which means that the max transfer rate between the drive and the PC with the Seagate is twice what is it is with the WD raptor. Also the number of platters, the number of cylinders per platter and the number of sectors per cylinder(track) can vary be varied by the drive manufacturer for drives with the same rated capacity which is why you do not see these numbers show up in the drive model specs. For example a drive manufacture may make a 450 GB drive with 3 platters holding 150 GB each or with one newer designed platter holding 450GB. "Daniel" wrote in message ... Hi both are SATA drives, I really do not know how to find out if they are SATA 300 The drives are C: WDC WD1500ADFD 00NLR5 D: ST 3500830AS, does that mean anything. In Intel Matrix Storage control it lists the C: WDC drive as ATA Transfer mode: Generation 1 and the D: Seagate as ATA Transfer mode: Generation 2 But I have no idea what that refers to, but it worries me because it is different. thanks Daniel "Curious" wrote in message ... Are they both SATA 300 drives? Without knowing the details of the Avg Transfer Rate test it is hard to determine why C does not do as much better then D as it does in the other two tests which appear to definitely able to take advantage of the faster RPM. "Daniel" wrote in message ... Hi I have a PC with Vista Ultimate, 2.66 CPU and 3 Gb RAM, the PC has two hard drives C: and D: The C: drive is a Raptor 150Gb 10,000 RPM drive and the D: drive is a Seagate 500 Gb 7,200 RPM. I do not believe I am getting the performance speed I should from the faster C: drive Comparative speeds are Avg Transfer Rate - C: 71.0 MB/sec - D: 62.8 MB/sec Access Time - C: 8.5 ms - D: 13.6 ms Burst rate - C: 85.7 MB/sec - D: 102.9 MB/sec Would anyone with knowledge of how Hard Drives are meant to work please comment on these figures, would you say I had a problem. Thanks for any help and advice regards Daniel |
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Please help with hard drive problem
Thanks Tom
I'll check it out but I guess I cannot say the Hard Drive is faulty and have it replaced. cheers Daniel "Tom Ferguson" wrote in message ... Probably, Tae Song put the finger on it. Check the areal density (AKA bit density) spec of both drives. In general, drives with higher numbers tend to be capable of greater data transfer speeds given identical conditions otherwise. Tom Ferguson "Daniel" wrote in message ... Hi I have a PC with Vista Ultimate, 2.66 CPU and 3 Gb RAM, the PC has two hard drives C: and D: The C: drive is a Raptor 150Gb 10,000 RPM drive and the D: drive is a Seagate 500 Gb 7,200 RPM. I do not believe I am getting the performance speed I should from the faster C: drive Comparative speeds are Avg Transfer Rate - C: 71.0 MB/sec - D: 62.8 MB/sec Access Time - C: 8.5 ms - D: 13.6 ms Burst rate - C: 85.7 MB/sec - D: 102.9 MB/sec Would anyone with knowledge of how Hard Drives are meant to work please comment on these figures, would you say I had a problem. Thanks for any help and advice regards Daniel |
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