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High CPU Usage & Very Slow Start-up

by ogri750 / February 13, 2008 9:04 PM PST

Hope someone can throw some light on an issue I have got.

MOBO - Asrock Dual Series 4Core Dual-Sata 2
CPU - Intel Dual Core 1.8Ghz
RAM - DDR2 2Gb
Graphics - Nvidia GeForce 7300 SE (pcie)
HDD - 200Gb Maxtor

Just rebuilt this system after the previous MOBO died on me, so I thought I would update some items.

Fresh install of XP Home, updates (windows and drivers) done,programs added back on etc and everything running fine.

A couple of days ago, the pc was taking a very long time to boot, with the HDD LED permanently lit, not flickering but staying on. Once the system gets to the Windows log on screeen and I click on the user name, the log on sound is all garbled and struggles, check CPU usage and it is way high.

I have checked what loads at start up, and there are very few items. Chked with both adaware and spybot, but no problems found.

Cleaned and reapplied thermal paste between CPU and cooler, and checked temp of CPU (30c/86f)

Running processes are 36, which isn't excessively high.

Any ideas what else I can check

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Have you installed any new
by jconner / February 13, 2008 11:30 PM PST

or updated virus scan software or firewall? In re-installing your settings for these could change and it may be doing initial startup scans. Sort the processes by mem usage and watch it just after logon.

Also look at what you have for virtual disk as opposed to what you may have had before.

When I've experienced this (far too often), it was usually virus scanning, firewall settings that changed or were set to default at install.

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Have You Installed Any New
by ogri750 / February 14, 2008 12:30 AM PST

The firewall is a hardware firewall in the router, and the AV is NOD32. I don't know if this configures itself to scan at start-up.....I haven't been able to see a setting for this yet

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You also have
by jconner / February 14, 2008 1:58 AM PST

Windows firewall, which will setup defaults on fresh install. Don't know your anti-virus, but for debug you can disable both. Looking at what tasks are eating up the memory on bootup and then doing a google on any you don't recognize will help. There are several freeware utilities recommended by PC world which analyze startup tasks. There are a number of threads here which talk about diagnosing startup slow downs.

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Have you installed
by ogri750 / February 14, 2008 5:20 AM PST
In reply to: You also have

As soon as it is possible, I have a look at the processes, and there is nothing in there that seems to be using much........but the cpu usage is between 55% and 85%.

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another way to view
by jconner / February 14, 2008 8:00 AM PST
In reply to: Have you installed

processes is to click/sort on the CPU header in processes and see who is busy and then search those as well. Someone besides System Idle process is awfully busy.

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