4750 Blue Screen then Reboot

I have the same problem. When I bought it 2 month ago,
first 4 or 5 days there were no BSODs. Then I upgraded
from WinXP Home to Pro and BSODs started to emerge.
I discovered that the power scheme was Portable/Laptop.
With this power scheme (and BIOS version 1.04) CPU (A64 3200+)
works at 800Mh almost all the time, so the fans switch on very rarely.
This leads to overheating of HDD (up to 68C).

When I changed the power scheme to "always on", CPU began to
work at 2000Mh all of the time, fans are switching on more frequently
(any time the CPU temp reaches 55C fans switch on and work until
CPU temp drops to 40C). All this helps to keep HDD temp at lower levels
(55C to 61C). As a result, BSODs happen once a day or two in average.
My HDD is Hitachy TravelStar 80G 4200rpm, and I can not undersrtand
why it is so hot, being so slow! As far as I understand, no other guy
in this forum has complained about high HDD temps, though their HDD
are quicker than mine (7200 or 5400). There are many complaints about
CPU temps (80C to 105C!), but the highest HDD temp mentioned is about 50C.

In short, I suspect that the reason of BSODs in my case is too high HDD temp.
I plan to replace current BIOS of my laptop with the older one: they say,
that v.1.03 has smarter (though leading to more noisy fan work)
fan firmware, which was not included in v.1.04.
Another thing I plan to do in the future is to replace old, hot and slow HDD
with a quicker one. In the hope that it will be not so hot as the present one.

Before you make assumptions, turn off automatic reboot and check your event logs.
My computer (right click) -> Properties. Advanced tab -> Startup and Recovery, Settings button. Uncheck Automatically restart.

Now to see what the BSoDs are about.
My computer (right click) -> Manage. Event Viewer -> System. Look through there for messages near when you crashed.

Some uncommon for healthy machine errors:
ACPIEC = Motherboard is bitching about BIOS. (I got a lot of those before my motherboard began to fail)
DISK = If it points at your hard drive, you may have a bad sector (drop your laptop recently?), your hard drive can be failing (if you have lost massive amounts of data repeatedly for no reason, massive corruption, hard locks, this becomes a possibility). If it mentions Parity Error, you may have a bad IDE cable to your hard drive.
BUGCHECK = Something really bad happened in windows. Likely just windows.


----
Do NOT believe that keeping the CPU spinning by raising the cpu speed will actually help you. Raising the cpu speed = more heat generated by the processor.

Also, you are more likely to have system crashes when your north/south bridge chips overheat. Vlad0 sounds like one of the motherboard bridges is overheating because they become extremely unstable at >60c.


Vlad0: Get a can of air and blow into your system. Your system sounds like its full of dust. Remove the keyboard and the panel under it to get a better cleaning of your systems internals (or open up all bottom panels). Seriously, my system overheated all the time when I didnt do it, and because of my neglegence, my motherboard went up in smoke. (and trust me, sager did everything they could to replace everything BUT the motherboard) ... *sigh* 300$ of shipping later I got the new mobo installed...

To TetryonX:

1) My BSOD's started when the laptop was practically brand new,
so I doubt they was caused by too much dust inside. In any case
the detailed description of the procedure of keyboard removing
seems to be very useful in certain circumstances. May be You know as well
the way to remove LCD? Someone here has posed this question recently, but
has received no answer yet.

2) BSOD messages I got most frequently are:

Stop ox24:
NTFS.sys at address XXXXXXXXXXXXX.....

So I suspect they are linked somehow to overheated HDD,
because they arise most often when HDD temp is approaching 60C.
No one else on these forums has complaints about so hot HDD.
On the countrary, the highest HDD temp reached is 55C at normal work
(I play games rarely enough). I can not see temps of bridge cheap,
but suppose it is not much higher (if at all) than the temp of CPU itself.

Another type of BSOD produces message:

IRQL_NOT_LESS_OR_EQUAL (XXXX)
STOP 0xA.
As far as I understand XXXX here contains info about concrete drivers
causing BSOD, but up to now I did not try to decipher this info. How to do this
is explained in WinXP Resource Kit Documentation on MS site.

In short, in my case I think the cause of BSOD's is HDD. By the way,
S.M.A.R.T shows that 2 of HDD parameters have serious deviation from their
normal values: Temperature (C2) and Read error retry rate (FA).
To see S.M.A.R.T parameters I used Everest.

Would You please explain which of the drivers were bad,
and how You fixed it. May be this info will help to others
in resolving similar problem?

if anyone here has an older version of the bios, like v1.03 or earlier (even 1.04 would be aprreciated) because I havent been able to find those and perhaps they will fix a problem that i have been having. If you do happen to have one of the versions before 1.05 please email me them at dukesap@yahoo.com

I would love to have a library of the old BIOSes, and would even be willing to host them (space permitting, on my ISP provided webspace) for others to download. If anyone has these old BIOSes, I would too appreciate having them emailed to me, cobryan+nbookforums@gmail.com

Thanks!

Hi Vlad, this is my exact problem as well. IRQL_NOT_LESS_OR_EQUAL BSoD and reboot whenever I do something flat out CPU intensive like encode an mp3 or run a music program like Ableton Live.

CPU temps go up and up and up til about 84° then it reboots. Not good.

Symptoms are the same, but reasons are clearly different. In your case the reason is
evident: CPU overheating. And there are given numerous receipts for cooling CPU in this forum. My BSOD's happen most often when CPU temp is around 40-50C,
but HDD temp is near 60C. By the way, when I am running something more CPU
intensive, CPU temp is constantly in the range 55--60C, so fans are working constantly, dropping HDD temp down to 50C. In these cases BSOD's happen very rarely indeed.