Slow Uncached Speed

jigglylizard

jigglylizard

New Member
Hello,
I ran a full system test at http://www.pcpitstop.com/
The results were fine except for BOTH my hard drives. Their uncached were very low, 18 and 15 mb/s respectively for Samsung SV3063H and Western Digital WD600BB-00CXA0 (These are the names in my device manager).
Compared to other systems with similar processor and clock speed, they were at 47% and 39% speed respectively.

I'm not quite sure what they mean by this. Their definition:
"Cached and uncached speed is measured in megabytes per second (MB/s). When a percentage is shown for cached and uncached speed, it compares the performance of the drive with those of systems in our database with the same processor and clock speed. (Our database currently has 2198 similar systems.) A rating of 200% means a disk is twice the performance of similar systems, 50% means it's half the performance. Cached disk speed generally measures the efficiency of the system's processor and memory system, not the performance of the hard disk. Uncached speed is most affected by the physical hard disk and the disk interface. "

Is something wrong with my drives that coudl slow down my system? If so what is it and how can the problem be resolved?
 
Hello!
I've got the same problem. To copy a 700 MB file from one location to another it takes about ten minutes and the music playback is snatchy.
I run the test and the results were:

Description Drive C Drive D
Partition format NTFS NTFS
Cluster size 4 KB 4 KB
Drive label No Label E
Size 131061 MB 78152 MB
Free space 12115 MB (9%) 12996 MB (17%)
Junk files 62 MB (0%) 0 MB (0%)
System Restore Space 15727 MB (12%) 9378 MB (12%)
Data fragmentation Not tested Not tested
File fragmentation Not tested Not tested
Uncached speed 3 MB/s (6%) 33 MB/s (70%)

Seems OK for the D drive, but my C drive is obviously having problems. Can I fix this problem without buying a new drive or formating it?

Thanks in advance,

Kristjan
 
In device manager expand IDE ATA/ATAPI controllers. Then right click on Primary channel and pick properties then click on advanced settings and set transfer mode to DMA if available for device 1 and device 2. Repeat for all channels.
 
Geez. Neither one of those drives are any good. They're both dogs. I don't quite know what you're expecting from them. Try upgrading the drives. The Samsung is a 5400 RPM drive. The Caviar is an all around piece of junk. Try picking up some new drives. Also, you might want to defrag the ones you have if you have to keep them.
 
I don't think the OP is coming back, this is an old thread from 2006 but even if they do come back a 5400RPM drive should get more than 20MB/sec. Not that I don't agree that new drives are in order :)
 
Lol. I didn't even notice the date. I think we'll rename Alek "Jesus" because of his ability to raise things from the dead. hehe. :D
 
Cromewell said:
In device manager expand IDE ATA/ATAPI controllers. Then right click on Primary channel and pick properties then click on advanced settings and set transfer mode to DMA if available for device 1 and device 2. Repeat for all channels.
Click to expand...


Thanks - I forgot to write about it, but DMA modes are already set for all channels.
 
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I ran error-checking for drive C and the results said:
"File record segment xxxxx is unreadable"
Does it mean that my HD is going bad?
 
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