New
#71
Atheros AR5005 + Win7 = High DPC
Ive had this problem for years...never fixed it - i get 25% DPC Usage when I download on uTorrent OR web browser OR transfer files in or out of the laptop - its all to do with networking and ndis.sys driver - the fault lies with Microsoft, while I get 25% CPU usage it does not really affect my computer usage, although I dont play music or movies - it does dpike DPC CHECKER but not as much as ive seen some users on here, soon as I stop uTorrent or Download off web page it stops.. i installed XP SP2 on dualboot and the problem went away for me..
specs:
Acer 5051 Laptop
2Gb (2x1) 667Mhz RAM
1.8Ghz Dual-Core 1Mb L2-Cache
ATi Radeon X1100
120Gb 7200rpm drive
Atheros AR5005 54Mbps
Netgear DG834GT
I definitely think its windows 7 has a bug in the TCP Stack
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