DFI Ultra D + New WD SE16 SATA II HD not getting good speeds pls hlp

[pcfabix]

I have had my system built for about 6 months now, and had problems with my PATA maxtor.....

 

Well I needed a new HD so I went with the new Western Digital SE 16 SATA II 320gig hd...The bios is reconizing the drive as a gen 2 sata II drive and the system is running fine per se, but any bench mark I run on it, it will not burst above 146MB/S and runs an average 54Mb/S

 

I have the drive running with no jumpers per instructions I d/l from westeren digital and I do not have Spread Spectrum enabled (what ever the heck that does)

 

Now can this be a limitation of the cable I am running? It is a SATA I spec'd cable I had from anoter system build, but from what I can find on the net I do not see any SATA cables spec'd to 300 MB a second. My board didn't come with any cables as I bought it OEM

 

Any suggestions will be greatly appreciated

[chewbacca]

I was actually wondering the same thing.

 

I have the same hard drive as you, and I believe the cables packed with my Ultra Infinity nF4 are SATA 1.5Gb/s... now why would they give the customer cables that are older than what the motherboard supports?

 

Can someone confirm if this is the cables' fault or not? I just read today that SATA 3Gb/s cables have a lock; the ones that came with my SATA 3Gb/s-supporting motherboard did not.

[Sorrento]

I think those are normal speeds for a sigle HDD... however you two should go to this tread and read about other users hdd performance and how to get faster bandwiths:

 

http://www.dfi-street.com/forum/showthread.php?t=4177

 

Good luck

[lowboy]

Normal single hdd numbers

[KaollaSu]

Just because you connect a hard drive to a faster interface or more accurately an interface with more bandwidth doesn't mean it makes the HD faster.

 

Your speeds are normal. You really don't get much benefit out of SATA-2 over SATA-1 unless your running RAID 0 with 4+ of those drives. It is mostly advertising hype to sell more drives to the uninformed.

[virtual81]

As said, they look like normal speeds.

Nothing to complain about.

Burst speed means nothing to me.

Were you expecting better speeds than you got ?

[BigKohones]

Are your SE16's making a clicking sound like every 8 ~ 15 minutes. Performance doesn't seem to be significantly better than my former ATA100 Caviar in a Shuttle XPC. I'm also suffering issues with my XMS memory on the Expert board too..not sure if my parts are defective.

[Sorrento]

Your speeds are normal. You really don't get much benefit out of SATA-2 over SATA-1 unless your running RAID 0 with 4+ of those drives. It is mostly advertising hype to sell more drives to the uninformed.

I think this is a wrong assumption, since 4 SATA1 hard drives in RAID-0 will also be really fast.

 

With a single hard drive a SATAII should have a performance gain over another single SATA, as small as it should be a diference exists. With two in RAID-0 this small diference increases nearly 4 times, and with four in RAID-0 is really huge.

 

There is always the option of the SATA150 Raptors, which are very small and cost a fortune... but their 10,000 rpm speeds create a lot of performance. But a single Raptor performs more or less the same than two SATA2 hard drives in RAID-0, and two Raptors in RAID-0 perform more or less the same than four SATA2 in RAID-0... both options cost the same, but the diference is in size.

 

I can only imagine how fast would a SATA2 version Raptor be, and how fast a RAID-0 array with two of these would be... I believe numbers are going to be in the order of 300 to 400 mb/s.

[chewbacca]

Well thank you guys for clearing that up.

 

As soon as I can afford a couple of additional hard drives, I'll RAID them up too.

 

However, I'm still wondering about the cables. I'm guessing they limit the performance of the drives, and I think SATA 1.5Gb/s cables got packed with my motherboard. Can I request "proper" cables (Yes, I am cheap, but I'm also poor.).