After a motherboard failure I have rebuilt machine (highbury)with a new motherboard and completely rebuilt the WinXP environment to Service pack 2.
First thing I did was install Boinc 4.45b as I had had some problems with the previous 4.72.
It downloads a sulphur cycle and after running sometimes for anything from 14 to 5,000 secs I end up with client error (3 times so far).
Then it tells me I have passed my daily download limit and I have to wait 24hrs.
I have set it up now to happily run einstein@home and Seti@home and they seem to be fine.
Are others having a similar problem or is it my rebuild?

Processor AMD 2400+
Ram 1 Gig.

<img src=\"http://www.boincstats.com/signature/user_52026.gif\">

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are you prime and memtest stable?
are you overclocked?

without knowing these things and what make of board/PSU you have, this question is impossible to answer

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are you prime and memtest stable?
are you overclocked?

without knowing these things and what make of board/PSU you have, this question is impossible to answer

Definately not overclocked!

Could you elaborate on \"prime\" and \"memtest\" stacble?
Is this some diagnostic software that I should run?

I have returned to the hardware supplier who has said that as BOINC is non standard software it is to blame and will not research it further. He tells me if I take BOINC off it will run perfectly! Does anyone have the figures on how many Computers are runing BOINC in windows XP Home?

The Motherboard is Asus A7V600-X.

<img src=\"http://www.boincstats.com/signature/user_52026.gif\">

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Could you elaborate on \"prime\" and \"memtest\" stacble?
Is this some diagnostic software that I should run?

[prime and memtest stable are talked about here on the phpBB forum. There\'s also a thread here on keeping the PC up to snuff.

I have returned to the hardware supplier who has said that as BOINC is non standard software it is to blame and will not research it further. He tells me if I take BOINC off it will run perfectly!

What a shocker. A PC maker not taking responsbility for their PCs. Are games also nonstandard? A PC should be able to take long periods of running at 100% CPU utilization if it is built well.

That said, you may want to use BOINC 5.2.1 that can be downloaded from here, install it, do a project detach, then reattach, and see if that solves it.

The number of hosts running WinXP can be found here but it doesn\'t differentiate between XP Pro and XP Home.

Tests and checks <a href=\"http://www.climateprediction.net/board/viewtopic.php?t=2126\"> here</a> and <a href=\"http://www.climateprediction.net/board/viewtopic.php?t=2124\"> here.</a>

Number of hosts: <a href=\"http://www.boincstats.com/stats/host_os_stats.php?pr=cpdn&st=0&to=100\"> here</a> on BOINCstats.

If it\'s a store built/bought computer, it will have been built for as low a cost as possible.
So, minimal size power supply, small case, no fan in the lower front, and possibly no fan at the back just below the power supply.

Take off the side cover and use a torch to look through the fan blades at the heatsink on top of the cpu chip.
If you can\'t see the heatsink fins, they are probably covered with a thick layer of dust.
Power down, take it outside, and use tweezers to remove the bulk of it.
Then use a vacuum cleaner to blow dust out of the case, and power supply.

You can also get hold of Motherboard Monitor, which puts a couple of temperature numbers into your system tray. Over 40 degrees and it\'s getting hot. Over 50 and it\'s becoming a worry.
One place to get it is <a href=\"http://www.snapfiles.com/get/mbm.html\"> here.</a>

Can you beleive it! When I took it back again to the shop it worked perfectly for two days.
I have now traced the problem to the new motherboard and the KVM switch I was using not liking each other. I switched the KVM switch for an older one and it has run for 8 hours with no problem. The old, now dead motherboard, and the KVM switch got along fine for somthing like two years.

I apprecaite the comments on various tests and I intend to use them on all my boxes to see if there are any other problems.

Once again Thanks!

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