[controller] burst rate (hdtach2.61) with WD1200JB - i only get ~70MB/s w/ ATA100 ?? (should be 100 ?!?!)

[flexy]

hi,

i got a new WD1200JB, ATA100 HD and i have a Soyo Dragon+ MoBo with an XP1900, of course i use ATA100/133 IDE cables and jumpers and everything are set right. My WD drive is running at UDMA 5 as supposed to be. (running under XP, but same results under 98)

But HDTach 2.61 tells me the max. burstrate is "only" about 68-70MB/s.....just a bit over UDMA66...shouldn't this be near 100MB/s ???
I am almost positive my 40gig maxtor had higher burstrates (also ATA 100, i do NOT have an ATA 133 controller...)

What do you get using HDTach and testing your Western Digital 1200JB, what burstrates ?


thanks !!!

 

[pillage2001]

Seems about right. 100mb/sec only occurs in ideal conditions and in the real world, your burst rate is about right. There alot of factors that come into play.

 

[aka1nas]

Your interface maxes out at 100MB/sec. That doesn't mean that the drive neccessarily even bursts that fast. Anything over 60MB/sec is awesome for an IDE drive at the moment.

 

[flexy]

Originally posted by: aka1nas
Your interface maxes out at 100MB/sec. That doesn't mean that the drive neccessarily even bursts that fast. Anything over 60MB/sec is awesome for an IDE drive at the moment.

I am *talking* about the interface - of course the drive itself is somewhere around 50MBs (start of HD)... but AFAIK HDTach measures the plain interface burst rate also and displays it - and this is still too low, even when the drive itself does only 50MB/s....it should be in the 100s and not around 70, and for ATA133 it should be even higher. My values are just about what ATA66 is, but i have and i *run* (UDMA-5) ATA100....too bad i dont have the values anymore HDTach showed for my DX740 40 Gig Maxtor....

Please anyone check that with HDTach...thanks !

 

[mechBgon]

Got any other motherboards you could test it on?

 

[oldfart]

1200JB bursts to ~ 85 MB/S on my rig.

 

[flexy]

yeah. 85MB/s it should be - i just checked some review sites for comparison...however i only get 70MB/s and 15.2% CPU usage...this should also be lower, like 4%....

hmmmmmmm

 

[flexy]

morning bump...anyone with a Soyo Dragon+ maybe did some HDTach benchies ?

 

[Alkali]

flexy mate, that speed you have got there is excellent for 1 drive. The whole point of ATA100/133 cables is that you can run TWO on one cable, one a primary and one as master. But, because the harddrives is soooo damn fast, they would actually nearly totally saturate the bus with data.

You should be really happy you can get it to do 70MB/s, and also make sure you run a CDRom or DVD on each hard drive channel to make sure you have plenty of headroom so not to saturate your bus.

 

[flexy]

Originally posted by: Alkali
flexy mate, that speed you have got there is excellent for 1 drive. The whole point of ATA100/133 cables is that you can run TWO on one cable, one a primary and one as master. But, because the harddrives is soooo damn fast, they would actually nearly totally saturate the bus with data.

You should be really happy you can get it to do 70MB/s, and also make sure you run a CDRom or DVD on each hard drive channel to make sure you have plenty of headroom so not to saturate your bus.

yeah sure, that's what i did. I have two extra Promise controllers onboard, plus the two via ide controllers, and this means i put every drive of mine on its own controller and run as master

 

[Alkali]

Originally posted by: flexy

Originally posted by: Alkali
flexy mate, that speed you have got there is excellent for 1 drive. The whole point of ATA100/133 cables is that you can run TWO on one cable, one a primary and one as master. But, because the harddrives is soooo damn fast, they would actually nearly totally saturate the bus with data.

You should be really happy you can get it to do 70MB/s, and also make sure you run a CDRom or DVD on each hard drive channel to make sure you have plenty of headroom so not to saturate your bus.

yeah sure, that's what i did. I have two extra Promise controllers onboard, plus the two via ide controllers, and this means i put every drive of mine on its own controller and run as master

Good job, good job Now don't be worried about your drive performance ok? Its damn good, be happy