Abit AT8: µGuru comes to the RD480
by Gary Key on March 10, 2006 12:05 AM EST- Posted in
- Motherboards
Firewire and USB Performance
After looking at many options for Firewire and USB testing, we finally determined that an external USB 2.0, Firewire 400, and Firewire 800 hard disk would be a sensible way to look at USB and Firewire throughput.
Our first efforts at testing with an IDE or SATA drive as the "server" yielded very inconsistent results, since Windows XP sets up cache schemes to improve performance. Finally, we decided to try a RAM disk as our "server", since memory removed almost all overhead from the serving end. We also managed to turn off disk caching on the USB and Firewire side by setting up the drives for "quick disconnect" and our results were then consistent over many test runs.
We used 1GB of fast 2-2-2-5 system memory set up as a 450MB RAM disk and 550MB of system memory. Our standard file is the SPECviewPerf install file, which measures 432,533,504 bytes (412.4961MB). After copying this file to our RAM disk, we measured the time for writing from the RAM disk to our external USB 2.0, Firewire 400, or Firewire 800 drive using our Windows bases timing program. The copy times in seconds were then converted into Megabits per second (Mb) to provide a convenient means of comparing throughput. Higher Rates therefore mean better performance in this particular test.
The Abit board offers a TI based IEEE 1394 Firewire option with performance equal to that of other TI solutions. The USB 2.0 performance is consistent with other ULi based controllers and continues to lag behind the NVIDIA nForce4 chipset solutions in throughput.
After looking at many options for Firewire and USB testing, we finally determined that an external USB 2.0, Firewire 400, and Firewire 800 hard disk would be a sensible way to look at USB and Firewire throughput.
Our first efforts at testing with an IDE or SATA drive as the "server" yielded very inconsistent results, since Windows XP sets up cache schemes to improve performance. Finally, we decided to try a RAM disk as our "server", since memory removed almost all overhead from the serving end. We also managed to turn off disk caching on the USB and Firewire side by setting up the drives for "quick disconnect" and our results were then consistent over many test runs.
We used 1GB of fast 2-2-2-5 system memory set up as a 450MB RAM disk and 550MB of system memory. Our standard file is the SPECviewPerf install file, which measures 432,533,504 bytes (412.4961MB). After copying this file to our RAM disk, we measured the time for writing from the RAM disk to our external USB 2.0, Firewire 400, or Firewire 800 drive using our Windows bases timing program. The copy times in seconds were then converted into Megabits per second (Mb) to provide a convenient means of comparing throughput. Higher Rates therefore mean better performance in this particular test.
The Abit board offers a TI based IEEE 1394 Firewire option with performance equal to that of other TI solutions. The USB 2.0 performance is consistent with other ULi based controllers and continues to lag behind the NVIDIA nForce4 chipset solutions in throughput.
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Duplex - Tuesday, March 21, 2006 - link
I really liked it you did a test with BH5 at 1T 2225 timings,BUT,
I would be so much happier if you also could test at how high clocks you
can run at 1T 2225-timings. That is at least how I define overclocking memory.
You still have the board, so pleeeaaaaaaaaaaase give it a try!
You overclocked with 1T 2.5-5-5-7 timings, but as I´m sure you know it´s not the same thing as overclocking the memory with 1T-2-2-2-5 timings, which BH5/UTT owners mainly gain performance from.
This is something I miss with most of your reviews, and I think Many Many readers would appreciate if you both tryed overclocking with tight resp. lose timings in the future.
It´s often tight timings that makes the boards stand out from the rest.
CPU stability and overclocking seldom differs more than 10% while the RAM clocks at 1T-2-2-2-5 often is either 200MHz or something like 280MHz (40%). Many boards still can´t run 1T-2-2-2-5 at all.
Memory Performance is about 1. tight timings and 2. high clocks
Maybe my facts isn´t totally correct, but I hope you see what I´m aiming at :-)
Gary Key - Friday, March 24, 2006 - link
Hi,
We are currently testing another RD480 board so I will provide the highest stable overclock at 2-2-2-5(7)-1T for the Abit and Asus RD480 boards along with the new one.
Gary
Duplex - Friday, March 24, 2006 - link
Great! Splendido! Magnifico! eeeeh, Excellent! Much appreciated!Duplex - Wednesday, April 5, 2006 - link
How are things going with the revised 1.1 bios, is the 256HTT limit gone?Has there been any time to look into it? ;-)
I read the ECS-review. Nice to see the
"The ECS KA1 MVP was very stable with 2 DDR modules in Dual-Channel mode at the settings of 2-2-2-5 at 2.7v. We were able to operate the memory at this configuration up to a 226HTT x12 setting." !!
Whats happening with the tests you mentioned above with the Asus and Abit board?
Estimated publishing date?
FireTech - Friday, March 17, 2006 - link
Agreed, love the look of this MB for it's passive cooling and fan control options. I'll have to wait for the AT8 32X though as the AT8 is now discontinued here.Any news on the BIOS #1.1 results?
Gary Key - Monday, March 20, 2006 - link
So far so good. We are waiting on a particular GSkill module to arrive to complete testing.
SpHeRe31459 - Saturday, March 11, 2006 - link
Dolby Digital Live is an option that a vendor must persue with Dolby and get their motherboard certified. Abit has not shown interest in this before, nothing I can find at the Abit site says this is Dolby Digital Live enabled. You guys sure about the AT8 having DDL?Gary Key - Saturday, March 11, 2006 - link
http://www.abit.com.tw/page/en/motherboard/motherb...">AT8 SpecsThe audio specifications are listed on the global site. The US site has the AL8 specs on the webpage and Abit has been notified of this. Abit is now including the ALC-882D with the DDL option on their higher end boards. We did not see it as being offered originally on the AT8-32x (complained about it) but have been told it will be included now. In fact, their Global website has been updated and shows it on the board. The board I tested had the ALC-882D codec and DDL (5.1, optical out to supporting receiver) was enabled in the drivers I used.
cornfedone - Friday, March 10, 2006 - link
Looks like Abit, even though late to market, didn't bother testing their ATI chipset mobo before shipping it either. They must have figured if Asus could sell the completely junk A8R-MVP garbage, then there were plenty of fools who would rush out and buy the Abit version of garbage. You got to believe that judgment day isn't too far off for the Asian mobo companies if they keep shipping this kind of junk.It's pretty obvious Asus needs to switch product lines from PC hardware to rice cakes or chop suey so their skill set matches their products.
rjm55 - Saturday, March 11, 2006 - link
Looks like the paid nVidia forum posters are at it again. They must really be afraid of ATI chipsets to go to these extremes. Wonder why?It's a shame this decent review got hijacked by a few crazies whose only goal was to disrupt and discredit.