Cbrom Exe Biosilk Flat
Cbrom.exe K8NU-9.F6 /PCI extract A cbrom.exe K8NU-9.F6 /PCI extract B cbrom.exe K8NU-9.F6 /PCI extract C cbrom.exe K8NU-9.F6 /PCI extract D cbrom.exe K8NU-9.F6 /LOGO1 extract. It just jumps directly to the DLL entry point function (in 32-bit flat protected mode) and execute the DLL. First cbrom.exe with Version 1.x.
Hi There, I thought some people might be interested to see the results of using 4 x Samsung SP2504C SATA II 250G hard disks in various RAID configurations on a Gigabyte K8N Ultra 9 NForce 4, AMD64 3000, Win XP and the latest NVidia drivers. The mother board also had a Silicon Image SiI3114 RAID controller (but only SATAI).
I tried all combinations of 1x SATA Drive (no RAID), RAID-0 (4 drives), RAID1 (2 drives), RAID 5 (4 drives), RAID 10 (4 Drives) to see the differences in throughput. I wasn't able to use the Samsung Hdutil to control the Acoustic management settings (seemed to only work it PATA drives?), nor was I able to confirm that NCQ was or wasn't enabled. It is interesting to see that SiI3114 RAID 5 performance is pretty poor.
Not sure why though. (Images removed from website - see updated post at the end of this thread) As for the acoustic performance of 4 of these drives. I have them mounted in an Antec P180 lower HD chamber. Their vibrations during head seeks are very well damped from the case, and the IDLE noise is barely audible with my ear right up against the front of the case.
I found it hard to tell if they were running and could only tell by the centrigual resistance force when I moved all 4 of them!! All in all a very nice drive for the cost - equal or less than most other 250G drives. Last edited by on Tue Jan 24, 2006 10:55 pm, edited 1 time in total. Nice benchmark set there, for anyone wondering about different configs. I'm kind of wondering if you have a configuration problem tho, as far as the first pic on the page, the 4x Raid0 result. I'm running two 80 gig sata1 SP0812C in raid 0 and get this result (live disks though, running the installed os and winamp playing from the drive, as well as steam and mbm5 etc, so it's a bit wavy): That's 32k stripe size, nforce 5.10 drivers. The chipset is nforce3 250, nvraid bios 4.42.
Also tried the 4.84 and 5.30 nvraid bioses, as well as the 6.66 nforce drivers, little difference. 16k stripe size nets me an extra 5-10MB/s in benchmarks, but feels slower for desktop usage, i suspect due to the longer I/O queues at 16k when multitasking.
So i stick with 32k now. 64k, which i assume you were using(?), drops things by about 10MB/s, and seemed a little slower on dekstop usage, but still less 'laggy' than 16k. Looking at your results tho, my average with 2x sata1 is higher than your average with 4x sata2, which can't be right. Your single drive benchmark is identical to my single drive results though, about 58MB/s. Looking at the 4xraid0 graph, i noticed you're getting no tail-off as the head reaches the end of the platter, like you do for the single drive. So it looks to me like something is artificially limiting the throughput way below what the 4x drives at the beginning of their platters are capable of delivering. Try some older/newer drivers maybe?
I had wondered why I didn't get much of a performance boost from 4 x drives in RAID 0. I am using the latest NVidia drivers (6.66). I also tried the silicon image controller and got a similar result (ie flat) but with 20MB/s less throughput. Hopefully it is not a CPU / motherboard limitation? I am not sure what else to tweak/test. Followups appreciated. At least I won't try the RAID5 option with the Silicon Image SI3114 controller.
Seriously poor performance, but perhaps that is the cost of parity. From what i've heard, the silicon images raid controller has some bandwidth issues.
I'll try to explain as much as i know about the issue. My own board is a gigabyte K8NS s754 nforce3 250 chipset, and only provides 2 sata ports.
You May Update Your Existing Express Gate Software To New Versions. The support DVD or download new versions from the ASUS support website. To update Express Gate. Asus express gate updater process. ASUS will process Return Merchandise Authorization (RMA) requests only if the motherboard comes with the cap on the LGA775 socket. Press ENTER to run the utility to select and update BIOS. This utility doesn't support: 1.NTFS format. Express Gate Updater.
They're attached to the internal nforce chipset raid controller, and the available bandwidth is the full Athlon64 HT bus speed (2x800Mhz). The ports are located quite near the AGP slot. Most nforce based A64 motherboards, especially the nforce4 boards, include a second pair of sata ports, usually located near the bottom of the motherboard. These two ports are connected to the silicon images controller. From what i gather, the silicon images controller is not connected into the HT bus directly, but communicates via the pci bus, essentially like a hardwired pci card. That gives you the limitations of the pci bus speed, which is 33mhz, severely limiting the throughput of SATA drives: 'The normal PCI bus (whether operating at 3.3V or 5V) is 32 bits wide and runs at 33.3MHz (normally quoted as 33MHz), offering a maximum bandwidth of 133MB/second.' Actually i've just looked up your K8N-Ultra-9 and it does offer 4 ports on the nvidia controller, as well as 4 more on the silicon images.
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