First post, by kirikl
I'm recently trying to polish my Super Socket 7 system.
Switched from DFI K6Xv3+/66 to Gigabyte GA-5AX rev 4.1
There is a reasons for that:
1.Memory performance on MVP3 motherboard is not great at all! Difference is approx 100mb/s apart, According to Everest. And it is degrading according PCI USB and connected devices very bad.
2.It is actually not supporting UDMA66 with non-66 drives!!! Wow!
So I switched to Ali chipset. Where memory performance is very good!
So I have Ultra66 PCI adapter, not gonna worry about that part, but then I want USB 2.0 and here is something I noticed.
If I want Full 50-57Mb/s I don't use USB 2.0 devices... If I want USB 2.0 devices speed of DMA66 lowering as low as 20! and as high as 37 maybe.
OR... If I plug OPTi card for example it is working as USB 1.1 and it is not affecting ATA66 speed much.
I checked it with PIII 1ghz, VIA PLE 133 with built in UDMA66 and PCI (ALI) USB 2.0. When I connect USB 2.0 devices - ATA speed reducing something around 44 to as low as 15.
Sorry my ignorance, maybe I'm missing fundamental knowledge here, but it actually made me more calm and not that mad at SS7.
Am I missing something here, is it possible to run full speed ATA66 and USB 2.0 on SS7?
Or that is normal situation? And I'm trying too hard to make old horse running as Ferrari?
Memory read on DFI with MVP3 - 180-200Mb/s
Memory read on Gigabyte with Ali - 290-310Mbs. (345 if overclocked 115mhz bus, but I don't do it for long)
Processor: K6-2+ 570mhz, modded and run as K6-3+ 600mhz, Mobo L2 cache disabled. 512MB (256x2) PC133 @PC100 Cl2
XT Turbo 10mhz
HP TC4200 / NC6400
Sony Vaio PCG-SRX99 / Sony Vaio PCG-505TR / Sony Vaio C1
Compaq LTE Elite 4/75CXL / Compaq LTE 5000
Toshiba T3100e/40 / T3200SXC
Tandy 1400 LT / Tandy 1000HX
PB G4 1.33 / PB G3 300 / iBook Cl 300