My Rig... new CPU heatsink???

[Digital_Jedi]

So about a year ago I put together a new PC. I have learned a huge amount of information in that time. My machine specs are...

ASUS M2Ne motherboard
AMD Athlon 64 X2 5600+ 2.8Ghz Socket AM2
2GB G.Skill RAM (with heat spreaders)
hec ACE-580UB 580W Power Supply
XFX nVidia 7600GT 256MB (soon to be a XFX nVidia 8800GS in a couple of days)
Apevia X-Plorer Blue ATX Case
3 Western Digital HD (X2 160GB, X1 80GB)
hand full of 80mm fans and one 120mm

So I am still using the stock AMD heatsink and fan that came with the CPU. I haven't had any overheating problems. The case I have has a thermal sensor and under load the case temp gets to 36c. The sensor sits above the RAM about 1 inch away from the heatsink. At start up the CPU sits in the low 30'sc and heats up to over 45c - 50c+ under load. I worry about overheating all the time so that is why i have 5 fans in my case not including the PSU. I have reapplied thermal paste in place of the pad about 6 months ago. I would like to get an aftermarket cooler for my CPU but not sure what to get???

 

[patonb]

Under load is how much load?

45C at 100% isn't bad. Infact they seem fine.
What program are you using to get the temp?

 

[Evolv]

This a good one:
Newegg.com - XIGMATEK HDT-S1283 120mm Rifle CPU Cooler - CPU Fans & Heatsinks

or the same thing but smaller and cheaper:
Newegg.com - XIGMATEK HDT-SD964 92mm Rifle CPU Cooler - CPU Fans & Heatsinks

 

[Digital_Jedi]

Well I use PC Wizard 2008 and I have also tried Speedfan. Playing games like Crysis is load... all I do is play games on the machine. I have seen my CPU temps on a restart in the motherboard BIOS after playing be in the 50+ but they drop down soon after.

 

[Naphtali14]

45c under a big load is a really good temp, if that really truly is the temp (what are you using to gauge the temp?).. If it is the real temp then you don't really need a different heatsink. But, if you are determined to get one.. I would suggest this ZEROtherm Butterfly BTF90 Socket 775754939AM2 Copper Base Heatpipes CPU Cooler at TigerDirect.com for a decent budget aftermarket heat sink.

 

[Digital_Jedi]

I really should have put 45+.... The max I have seen it in the BIOS is 56c I believe. I'm just paranoid about my hardware... I would like it to last a while and I know heat decreases life expectancy.