Member Avatar for vishsolanki

my mother board
INTEL D945GCCR + Pentium D Dual Core: 3.00 GHz
+ 1GB DDR2 RAM 533 Mhz(single module)


1)my cpu fan too much noisy...and make lot of noise continously...whole day..and intermiitently..

what is possible reason.....and remedy..???

2) Second problem is when i add additional another 1GB DDR2 RAM (533 Mhz(single module)) my computer becomes slow...and after some time..computer shuts down saying beacsue of "CPU thermal shutdown"

what is possible reason.....and remedy..??

Waiting for reply

Thanks & Regards
Vishal

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  • Latest Post Latest Post by johnjustin

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Quick diagnostic checklist to isolate the noisy fan and the "CPU thermal shutdown" that appeared after adding RAM. , and rightly flagged the cooling as a likely culprit; the goal below is to prove whether the issue is cooling, memory, or a combination, then fix it safely.

First, identify the noise source and fan behaviour without guessing. Power the system with the case open and listen carefully (a rolled cardboard cone helps localise sound). Verify the CPU fan is plugged into the CPU_FAN header and read the reported RPM and CPU temperature in the BIOS. With power off, spin the fan hub by finger to feel roughness or wobble. Look for blades hitting cables or loose mounting hardware that can create resonance. If the BIOS shows wildly fluctuating RPM or no RPM at all, the fan or the fan header is suspect.

Second, isolate the RAM vs cooling interaction. Adding a module should not directly cause thermal shutdown. Possible mechanisms are a defective DIMM causing system instability and high CPU load, or the heatsink/fan becoming disturbed while installing RAM. Test in steps: boot with only the original stick, then with only the new stick; run Memtest86+ for several passes if the new stick is used; monitor idle and stress temperatures (BIOS or monitoring tools) during a short CPU stress run to see how fast temps rise. If temps jump quickly, reseat the heatsink and renew thermal compound before further testing.

Finally, safe corrective actions depend on the findings. If the fan shows bearing roughness or erratic RPM, replace it with a quality, appropriately sized cooler; if Memtest reports errors, return the DIMM. Always power down and unplug before touching components and use basic ESD precautions. These steps aim to find the root cause without unnecessary guessing or replacements.

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Member Avatar for caperjack

what is possible reason.....

bad ,fan .

and remedy..??

buy a new fan!

as for ram the 2 could be related ,fix fan first then try other ram

Member Avatar for theorice

Either you buy a new fan, or wait for your existing fan to eventually damage your processor or cpu. After about four years on a second hand IBM desktop I found myself bringing the cpu to a tech shop to have the still working fan cleaned up--then I lost what I suspected was unusual noise.

Member Avatar for johnjustin

my mother board
INTEL D945GCCR + Pentium D Dual Core: 3.00 GHz
+ 1GB DDR2 RAM 533 Mhz(single module)


1)my cpu fan too much noisy...and make lot of noise continously...whole day..and intermiitently..

what is possible reason.....and remedy..?

The reason for the noisy fan is that there are small ball bearings in the fan unit after time these wear on the plastic bearing faces this after time course them to rattle or chaff on this facing. hence the noise. only way to cure this is replace the fan and while you are at it you may want to put a better one in as copper ones are going very cheap these days and it is good insurance for the cooling of the cpu. " cpu's hate heat cooler the better ".
best JJ.

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