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Forum: The Classroom Topic: Promise Ultra100 => Fasttrak 100 started by: Avalanche Posted by Avalanche on Jul. 31 2000,22:16
Anyone know if you can use the same mod to turn an Ultra 100 card to a Fasttrak 100. I just bought 2 15 gig IBM ATA 100 drives. I have them running on my modded Ultra 66 => Fasttrak 66 Card. They work fine...I just was wondering if I can get MORE POWER out of them
Posted by damien_s_lucifer on Aug. 01 2000,00:26
Given that many benchmarks (and my own experience) have shown that Ultra66 gives absolutely no performance increase over Ultra33, I doubt you'd see any difference between a Fasttrak66 and a Fastrak100.Oh well... Posted by cr0bar on Aug. 01 2000,01:21
"Absolutely No"? I think you're mistaken. . . these tests you speak of, did they have DMA enabled in Windows? Were they using 7200RPM drives with large buffers? Now, UDMA66-->UDMA100, there's where you don't see much of a difference since most "UDMA100" drives peak at 66MB/s internally.------------------ Posted by Avalanche on Aug. 01 2000,19:19
I will tell you that with my curent system I have an IBM 20 gig 7200rpm 2mb buffer...before I got my ultra66 card...I ran it off the onboard ata33 ide channels. It was good, but when I put the ultra66 on...damn that puppy screemed...everything opened ran much faster and smoothly, I'm just not sure about the ATA 100
Posted by Hellraiser on Aug. 02 2000,21:42
A little bit of logic: ATA-33 drives max out at 33MB/s, average between 10-20MB/s internal depending on the quality of the drive and the surrounding hardware. ATA-66 drives max out at 66MB/s, average between 15-40 depending on the quality of the drive and the surrounding hardware. ATA-100 drives max out at 100MB/s, average between 20-60 depending on the quality of the drive and the surrounding hardware. These figures are estimates and may differ more greatly depending on your system, but on the whole, there is a definite increase in performance between the three types. Also, these figures are for internal data transfers, in terms of overall system performance, other factors to consider are bus speed, RAM speed/amount/quality, and processor speed, all of which play a part in how well your system performs. In talking about hardware, you have to remember that the same exact piece of hardware might perform drastically differently in two different systems based on how the other hardware in the systems perform. Case and point: when I switched out my PIII 450 for a friends PIII 500, in passmark performance test my disk score went up by 6\% (this was not nearly as noticable as the 50\% performance jump from when I enabled DMA on the drive).The point is that making generalizations based on the results of one or two tests about the validity of a new technology is rather erronious. And with the Promise 66 hack, i'll still have a fast enough drive(s) to keep me satisfied for a while. Also, FYI Avalanche, the hack for the ultra=>fasttrak 100 is slightly different from the the hack for the ultra=>fasttrak 66. I have seen it somewhere, but I don't recall the url now, and since I don't have a 100, i didn't see the need to save it. ------------------ |