GA-X58A-UD5 Latency with Jmicron

[F5BJR]

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With WINXP i have . ..

left without JMICRON driver some 20 µs

right with JMICRON driver some 750 µs

question : bad BIOS or bad driver ?? ( but i have exactly same DPC latency report with ASUS P5K !! )



Pierre

[Dark Mantis]

Hi Pierre
Difficult question as it could be either but my guess would be driver. Anyhow I take it that you are running the latest BIOS so why not try flashing to a slightly older one and see if it makes any difference. I know that won't be a foolproof answer but it might help.

[F5BJR]

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i have modified my message !!

--> but i have exactly same DPC latency report with ASUS P5K !!  <<--

problem is with driver ...

i look if i found old JMicron drivers ...

FOUND : problem exist if IDE JMicron port is automatically installed with RAID driver

Pierre

[F5BJR]

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finnaly found good ide driver with JMide.inf in DRIVER\Application\jmide folder

Version 1.0.0.0

Date 16/09/2006

Pierre