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Hi you all
clouma Jul-22-01 06:58 PM
I have a new PC 2 months old and the CPU is fried it is an Athlon 900 and I believe that it damaged the mother board also, I had to send both for testing - repair or replace. Is there any known issue about the Athlon 900 failure ?

Somebody told me that it is possible that my power outlet in the wall is overload and fried the CPU with too much power peak and surge and I can't plug it in a better socket - So do you know if a Battery Backup of 600 VA could prevent any future damages ?

Please reply - I need to know before frying another CPU and MOBO

3. Fried Processors
lbyard Jul-22-01 07:22 PM
In response to message 0
I don't think an overloaded Wall outlet would fry a CPU or that an UPS would make any difference. Lightning can fry one, but it is rare. A surge protector/UPS might prevent that, but I have seen a lot of computers that were plugged into them and were fried anyway. I have seen a lot of fried computers in which the CPU survived. This is the more likely cause:
The following Tech Tip regarding Socket A heatsinks was sent by AMD to AMD resellers on 8/10/00.
Tech Tip:

- Did you know that the new PGA (Pin Grid Array) AMD Athlon(tm) and AMD Duron(tm) processors have very different thermal specifications than any preceding AMD processor? Due to these differences, the AMD Athlon and AMD Duron processors should NEVER be run without a heatsink, not even for a few seconds. Doing so will cause the processor to overheat and fail immediately, resulting in permanent damage. While testing a processor by booting it up for several seconds without a heatsink installed may be common industry practice, it should never be attempted with the new PGA AMD Athlon and AMD Duron processors.

- What thermal solution should you use? For optimal performance, always use a heatsink solution evaluated and recommended by AMD. A list of these recommended solutions is available on AMD's Thermal Solutions page at:

- Efficient heatsink solutions for the AMD Athlon and AMD Duron processors must conform to the heatsink design specifications as outlined in the "AMD Thermal, Mechanical, and Chassis Cooling Design Guide" PID#23794, available at:

- Although these processors have socket designs similar to the AMD-K6(r) family processors, heatsink solutions designed for AMD-K6 family processors should never be used. Most of these will not conform to the required dimensions. The PGA AMD Athlon and AMD Duron processors require a heatsink with a minimum base size of 60mm x 60mm, and a fan with a minimum rating of 16 cfm (cubic feet per minute). Additionally, the new exposed flip-chip design of the PGA AMD Athlon and AMD Duron processors requires a clip load between 12 and 24 pounds (typically 16 pounds), a load that may not be met by most older heatsink designs. A thermal compound, such as thermal grease or phase-change material, must always be applied between the processor and heatsink as well. Typically, AMD recommended heatsinks will include the thermal compound. If the thermal compound must be purchased separately, a list of suggested compounds can be found in the "AMD Thermal, Mechanical, and Chassis Cooling Design Guide" referenced above.
9/8/00 We are hearing about quite few cases of people breaking AMD Socket A processors by
using the wrong kind of heat-sink fan
installing the processor and turning on a computer before installing a proper heat-sink fan (these aren't K6's, folks)
and not correctly installing a proper heat-sink fan.
Operating a socketed AMD Athlon or AMD Duron processor for even a few seconds without the heatsink properly and firmly attached WILL RESULT IN PERMANENT DAMAGE! If you have never installed a heatsink on an AMD Athlon or AMD Duron processor before, it may be difficult. You should do a dry run several times before doing the final installation. Before installing one the first time, may I suggest that you download and read AMD's Socketed Processor Installation Guide (http://www.amd.com/products/cpg/athlon/howtobuild/pdf_socket_install_). Also, I have written a guide with plenty of pictures for installing Socket A processors at http://duxcw.com/digest/Howto/cpu/socka/1.html.

Other than the above, processor failure is extemely rare. I have seen maybe a dozen or so bad ones in the 15 years I've had my shop and I would say about a quarter of them were damaged by a close lightning strike. Are you sure yours is broken? Larry

4. RE: Fried Processors
clouma Jul-26-01 02:58 PM
In response to message 3
Hello Larry,

Thanks again for your info, I found the second part of my problem, the first was like I said the processor, after installing a second one the system load the BIOS and start. But again at the end of the day it refuse booting and knowing I had a good processor and that the motherboard been test OK - I went further in testing and found out that ''The no signal screen I had and no boot up from the BIOS'' was coming from a bad video card --- install a new one and now it is running find.

Again Thanks


5. RE: Fried Processors
lbyard Jul-26-01 05:22 PM
In response to message 4
You might try that other processor again. Larry

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