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DPChallenge Forums >> Hardware and Software >> CPU running too hot!
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07/02/2006 05:46:32 PM · #1
Rather than simply buy a new pc can anybody help me with this please?

Recently an alarm has been sounding on my pc, usually during CS sessions and I think its the CPU overheating. I've just cleaned the chassis, all inlets and fans but the CPU is still running at 64 degrees (after being turned off for an hour). Should I just replace the CPU, wait for it to give up or is there a better 'fix'?
07/02/2006 05:56:35 PM · #2
is that 64 degrees in C or F?

MattO
07/02/2006 05:57:00 PM · #3
try reapllying thermal compound... between heatsink and the cpu, and make sure you have cleaned both surface before apply it.

Message edited by author 2006-07-02 17:57:52.
07/02/2006 05:59:06 PM · #4
Originally posted by MattO:

is that 64 degrees in C or F?

MattO


If it was Fahrenheit I'd not be worried ;) Its centigrade so I am :(
07/02/2006 05:59:58 PM · #5
Originally posted by focuspoint:

try reapllying thermal compound... between heatsink and the cpu, and make sure you have cleaned both surface before apply it.


thermal compound?
07/02/2006 06:02:47 PM · #6
You could hang some extra fans in the chassis or take one of the sides off.
Another option is to replace the cooler with one with more cooling capacity or when it is very bad, liquid cooling (just like your car basically but pretty expensive). That is not so difficult.

07/02/2006 06:03:01 PM · #7
thermal compound is a cream like paste that applied between heatsink and the CPU. You have to take out the heatsink, with its fan attached (most of the time) and clean under the heatsink and CPU where they touch eachother. After cleaning is done, apply this cream like compound, just a little bit, not too much, and attached the heatsink back onto CPU.

they can be purchased from an elcetronic store, and they are pretty cheap too.

Message edited by author 2006-07-02 18:04:43.
07/02/2006 06:03:46 PM · #8
Thermal compound is a good idea. You could try to get a new CPU heatsink and cooler, probably could go for a higher performance one. How old is the PC?
07/02/2006 06:08:39 PM · #9
Thanks for the suggestions thus far peeps. The pc is about 18 months old btw.
07/02/2006 06:15:17 PM · #10
Stock computer cooling pretty much sucks, so I would advise upgrading at least the CPU's heatsink and fan, if not replacing all of the fans in your case with high flow ones. It might make the computer louder, but it will perform much better. Thermaltake makes some very nice cooling systems that will do a very good job.

Edit to add: As with most things, you pay for what you get. So if you get the nicer, more expensive heatsink and fan set up, it will run longer and do a much better job than the $5 set up.

Message edited by author 2006-07-02 18:17:05.
07/02/2006 06:42:33 PM · #11
Just to make sure, is the CPU fan working? I've had one of those go bad.

-Chad
07/02/2006 07:17:10 PM · #12
Originally posted by cpurser:

Just to make sure, is the CPU fan working? I've had one of those go bad.

-Chad


Good point Chad, I checked it when I was 'de dusting' the insides.
07/02/2006 08:03:18 PM · #13
Try cleaning your heatsink. Blow it out with an aircanister. If the fan failed it would be over 64C. My limit is 70C. Clean all the dust out of your case.
07/02/2006 08:17:46 PM · #14
What you need is a water-cooled cpu!!! Those things are sweet. Make sure to use some type of neon, glowing liquid so you can turn a black light inside the tubes on!!!
07/02/2006 09:23:38 PM · #15
I had this problem with my old computer, and I had to underclock the processor so it wouldn't run as hot. The problem never completely went away so I bought all new computer parts.
07/02/2006 09:24:32 PM · #16
Originally posted by tmhalling:

Try cleaning your heatsink. Blow it out with an aircanister. If the fan failed it would be over 64C. My limit is 70C. Clean all the dust out of your case.

I use the leaf blower! And no i'm not kidding, it works VERY well :-)
07/02/2006 11:00:00 PM · #17
Originally posted by kyebosh:

gine it would
I use the leaf blower! And no i'm not kidding, it works VERY well :-)


I imagine it does. Just make sure to have the pc grounded (plugged in) asto not build static electricity.
07/02/2006 11:12:31 PM · #18
If this is a new occurance, has something changed that could have caused it or give you an idea where to look for the cause?

Things like moving the computer and not being near an air vent anymore (or just not having any for air to circulate around the air intakes. Are any of the fans making a lot of noise (even if only once in a while)? If there are any making noise, clean them. If they continue to make noise, replace them.

How many fans are there on the system, and what direction are they blowing? look over the fans for overall air flow thru the case. Cool air from outside the case should be blowing on, or as near to the CPU as possible and heat fans should be blowing hot air out, not into the main part of the case. This means the fan(s) in the powersupply need to be blowing out, the fans on the side or back (if there are any) need to be blowing in to get the cool air to the CPU. If there is a fan on the side and on the back, make sure they don't fight each other. The best way to do that is usually to have the one with the most direct air route to the CPU blowing cool air toward it and the other sucking the hot air out. Likewise, fans on the front of the case (either at a vent or blowing on the harddrives) should be blowing air in to aid the general cool air flow for the full case (the air will go out thru the power supply). The fan on the harddrives may need to be blowing in on them to keep them cool (at the expense of heating up the case) or blowing out if there is enough air circulating to keep them from getting too hot.

Other things that can be look into are getting a larger case if the one you have is tightly packed and tieing up cables (especially ribbon cables) that may be blocking the airflow.

David
07/02/2006 11:23:30 PM · #19
What Type of system? Brand model etc
07/02/2006 11:49:56 PM · #20
Originally posted by coronamv:

What Type of system? Brand model etc

Hope this is enough (and not too much) info?

--------[ Summary ]-----------------------------------------------------------------------------------------------------

Computer:
Operating System Microsoft Windows XP Home Edition
OS Service Pack Service Pack 2
DirectX 4.09.00.0904 (DirectX 9.0c)
Computer Name ANDI-L1XXXXXX9I
User Name Andi McGill

Motherboard:
CPU Type AMD Athlon XP, 2166 MHz (13 x 167) 3000+
Motherboard Name MSI KM3M-V (MS-7061) / KM4M-L (MS-6734 v1) / KM4AM-L (MS-6734 v2) / MS-6786
Motherboard Chipset VIA UniChrome KM266 Pro / KM400(A) / KN400(A)
System Memory 1024 MB (PC2700 DDR SDRAM)
BIOS Type Award (05/17/04)
Communication Port Communications Port (COM1)
Communication Port Communications Port (COM2)
Communication Port ECP Printer Port (LPT1)

Display:
Video Adapter RADEON 9600 SERIES - Secondary (256 MB)
Video Adapter RADEON 9600 SERIES (256 MB)
3D Accelerator ATI Radeon 9600 (RV350)
Monitor hp f1903 flat panel monitor [NoDB] (CNB414020J)

Multimedia:
Audio Adapter VIA AC'97 Enhanced Audio Controller

Storage:
IDE Controller VIA Bus Master Ultra ATA Controller
Floppy Drive Floppy disk drive
Disk Drive Maxtor 6Y080L0 (80 GB, 7200 RPM, Ultra-ATA/133)
Disk Drive USB Read SM Card SM USB Device
Disk Drive USB Read SD Card MMC/SD USB Device
Disk Drive WDC WD16 00JB-00GVC0 USB Device (149 GB, USB)
Disk Drive USB Read MS Card MS USB Device
Disk Drive USB Read CF Card CF USB Device (972 MB, USB)
Optical Drive ATAPI DVD RW 8XMax
SMART Hard Disks Status OK

Partitions:
C: (NTFS) 38201 MB (24628 MB free)
D: (NTFS) 152625 MB (103660 MB free)
F: (NTFS) 22952 MB (4163 MB free)
G: (NTFS) 2368 MB (2304 MB free)
H: (NTFS) 5004 MB (4951 MB free)
I: (NTFS) 9632 MB (1930 MB free)
Total Size 225.4 GB (138.3 GB free)

Input:
Keyboard Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
Mouse A4Tech PS/2 Port Mouse
Mouse HID-compliant mouse

Network:
Network Adapter VIA Rhine II Fast Ethernet Adapter
Network Adapter WAN (PPP/SLIP) Interface (212.56.100.14)
Modem Intel(R) 536EP Modem

Peripherals:
Printer EPSON Stylus Photo R1800
USB1 Controller VIA VT83C572 PCI-USB Controller
USB1 Controller VIA VT83C572 PCI-USB Controller
USB1 Controller VIA VT83C572 PCI-USB Controller
USB1 Controller VIA VT83C572 PCI-USB Controller
USB2 Controller VIA USB 2.0 Enhanced Host Controller
USB Device Conexant AccessRunner USB ADSL Interface
USB Device USB Human Interface Device
USB Device USB Mass Storage Device
USB Device USB Mass Storage Device

Monitor HWP2611: hp f1903 flat panel monitor [NoDB]

------------------------------------------------------------------------------------------------------------------------

The names of actual companies and products mentioned herein may be the trademarks of their respective owners.

Message edited by author 2006-07-02 23:50:38.
07/02/2006 11:55:47 PM · #21
What about the physical location of the PC? Is it tight up against a wall or inside a cabinet where it's enclosed, not allowing airflow?

It is summertime. What about the temperature inside your house? Could it be contributing?

Is the fan on the power supply working?

Are you sure it's the processor? It could also be other motherboard components, ram, or hard drive.

Your case may have places for you to add a new fan. Are you able to put on on the front of the case, or a second one in the back? They are very cheap.

07/02/2006 11:57:55 PM · #22
AMD chips are known to be quite hot... some tips:
1. make sure the heatsinks, fan and the chips are properly conductive
2. the CPU unit (the box) may be too hot inside - either remove the casing, or install more fans
3. proper ventilation of your CPU unit (the box) on your computer table. Avoid enclosed shelves
4. all else fails - get one of those DIY oil-based cooling systems (Fotoman_forever posted a link last week, but I cant find it again)
07/03/2006 12:07:44 AM · #23
Originally posted by msgoodygal:

What about the physical location of the PC? Is it tight up against a wall or inside a cabinet where it's enclosed, not allowing airflow?


The location has not changed since I installed the pc. Its in a cabinet but no front door and the back leads into the back of a couch. air can flow all around.

Originally posted by msgoodygal:


It is summertime. What about the temperature inside your house? Could it be contributing?

Yes, its summertime now and very hot, the problem first started a few months back when it was cold but its got more regular.

Originally posted by msgoodygal:


Is the fan on the power supply working?

Yes



Originally posted by msgoodygal:


Are you sure it's the processor? It could also be other motherboard components, ram, or hard drive.

CPU is running at 64.5C
Motherboard is running at 26C
HD is running at 35C
Main fan is running at a constan 4006rpm


Originally posted by msgoodygal:


Your case may have places for you to add a new fan. Are you able to put on on the front of the case, or a second one in the back? They are very cheap.


Plenty of space for a new fan, that might be an option?

thanks :)


07/03/2006 12:14:33 AM · #24
Check out Thermaltake's line of fans and cooling systems. I have a Thermaltake case with 7 fans and a fan control center on the front of the case that I can control the fan speeds and monitor temperature and even sends me an alarm if it gets too hot. The cpu cooler/ thermal compound is a great idea as well.
07/03/2006 12:14:49 AM · #25
Originally posted by Ecce Signum:

Plenty of space for a new fan, that might be an option?

thanks :)


Of course it's an option. Do it if you can. Try and get a fairly high flow fan, they are listed by CFM (cubic feet per minute)as well as sound output (in dB) on the package. Try to find a fair compromise, but the air flow rate is more important than noise in my opinion.

Edit to add: I would second the Thermaltake brand recommendation as I said earlier in the thread.

Message edited by author 2006-07-03 00:16:53.
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