DPC Latency Checker

[Musho]

Something is wrong with your rig... This latency doesn't seem to depend on the speed of anything. I checked with a friend who has a pretty slow PC (3ghz c2d, raptors, 4870) running windows 7 and he had ~20us latency.

Nevermind for the videocard comment. This guy with a 4870 seems to run with low latencies just fine. That leads us right back to the motherboards again

Edit: One_Hertz, do you happen to know what mobo that friend of yours is using? Thanks!

[One_Hertz]

Nevermind for the videocard comment. This guy with a 4870 seems to run with low latencies just fine. That leads us right back to the motherboards again

Edit: One_Hertz, do you happen to know what mobo that friend of yours is using? Thanks!

My rig:

QX9650 @ 4.6
4gb of ddr2 OCZ ram @ 1150mhz
EP45-DQ6
Auzentech Prelude
4x X25-E in R0 on LSI 9211
750gb WD for storage
ATI 5870
A very light windows xp x64
Everything I do not need is disabled in BIOS.
Latency is at 14us @ the median point.

My friend's rig ("aintz" on this forum):

E6700 ES @ 3.0
Asus P5W DH Deluxe
4870
4gb of crap ram
2x 74gb raptors in R0
Full version of windows 7 ultimate
No tweaks, no disabling things in bios, no nothing. Standard rig.
Latency very similar to mine.

edit: Napalm has a pretty similar rig to mine. I bet if he runs it he will also see low latency.

[Musho]

My rig:

QX9650 @ 4.6
4gb of ddr2 OCZ ram @ 1150mhz
EP45-DQ6
Auzentech Prelude
4x X25-E in R0 on LSI 9211
750gb WD for storage
ATI 5870
A very light windows xp x64
Everything I do not need is disabled in BIOS.
Latency is at 14us @ the median point.

My friend's rig ("aintz" on this forum):

E6700 ES @ 3.0
Asus P5W DH Deluxe
4870
4gb of crap ram
2x 74gb raptors in R0
Full version of windows 7 ultimate
No tweaks, no disabling things in bios, no nothing. Standard rig.
Latency very similar to mine.

edit: Napalm has a pretty similar rig to mine. I bet if he runs it he will also see low latency.

Hmmm, so your friend is using an Asus board and does get good latencies. Proves my theory wrong. Kind of weird though. I'm running a pretty similar rig as you:

QX9650 @ 4.6 -> Q9650 @ 4050mhz
4gb of ddr2 OCZ ram @ 1150mhz -> 4gb of ddr2 Kingston Ram @ 1082mhz
EP45-DQ6 -> Maximus II Formula, same p45 chipset
Auzentech Prelude -> Onboard
4x X25-E in R0 on LSI 9211 -> 80gb X25-M on ICH10R in AHCI mode
750gb WD for storage -> Nothing for storage atm (just got rid of my 500gb HDD, getting a 1TB F3 tomorrow)
ATI 5870 -> ATI HD5870
A very light windows xp x64 -> Tweaked Windows 7 x64
Everything I do not need is disabled in BIOS. -> Same here, disabled the marvell (or was it micron?) HDD controller, disabled firewire
Latency is at 14us @ the median point. -> Over 100us latency