Lowering FSB Increases WPA2 Speed
#5
(10-28-2014, 03:59 PM)epixoip Wrote: There seems to be a direct correlation between the FSB speed and the system clock. The system clock is calibrated at boot time using the APIC timer, and the local APIC frequency is dependent upon the FSB speed. So accurate timing depends on the FSB frequency. If the FSB changes on a running system, this has a direct impact on timer accuracy, which affects the system clock.

My APIC is disabled in bios or whaterver its called, but that does make sense about the FSB adjusting clock time. My fsb is 333 mhz default btw my overclock cpu speed is 3.ghz but on my lower power profile only 1.6 or smthn then clock down to 215 FSb about 1400 mhz.

(10-28-2014, 03:59 PM)epixoip Wrote: Literally impossible. WPA kernel in oclHashcat is ~ 14000000 instructions. You haven't posted your clock speed, so I am assuming a stock 1000 Mhz core clock. 2048 cores * 1000000000 Hz / 14000000 instructions =~ 146.3 KH/s max theoretical performance on a 7970 / R9 280X. Most users benchmark real-world performance around 127-135 KH/s.

I can achive speeds of 160 kh/s on my R9280X OC (Overclock edition) default clock is 1100 mhz. It does 160 kh/s right out the box. My settings is 260 acell & 4096 GPU Loops.

(10-28-2014, 06:59 PM)Rolf Wrote: Windows bug probably, as lowering clocks can never provide speed boost by design.
So no, the speed isn't real.
It's either skipping passwords or showing you higher-than-actual speed.

Well I hope its not skipping passwords only showing higher speed, I took a note of all the letters that was completed using the lower clocks so i could do them again if need be.

I did however notice that a letter that says would be completed in 4 hours actually took 8, but then other letters actually did take the time it says it would.. I guess this is a bug afterall.


Messages In This Thread
Lowering FSB Increases WPA2 Speed - by Tiesto - 10-28-2014, 01:22 PM
RE: Lowering FSB Increases WPA2 Speed - by Tiesto - 10-31-2014, 12:34 PM
RE: Lowering FSB Increases WPA2 Speed - by Rolf - 10-28-2014, 06:59 PM