Your chip should be HDT55TFBK6DGR (or FBGRBOX for boxed version). If we look here -
Brand = HD
Model = T55T
Roadmap = FB (Max TDP 125W/140W, Socket AM3, Max IDD VDD-110 A & NB-20A, HS class 78)
Package = K (K = AM3)
Number of Cores = 6
Cache size = D (D = 512KB L2, 6144KB L3)
Part Definition = GR (GR = Revision E0, cpuid 00100FA0h)
Now we look in the thermal table to get -
Thermal Profile AE, Heatsink Class 78 table:
125W TDP = TCase Max 62C.
If you're getting throttling in the 50's more than likely you have the "thermal profile" setting on your MB enabled which is designed to start throttling your CPU before
you get to TCase Max which in your case is 62C. But which temperature matches the "CPU temp" in your bios? That will be your TCase temp.
Edit - also if you blow air on the socket and get a drop in a temp reading that tells me that it's probably the TJunction reading which is located on the motherboard under the socket.Edited by Bubba Hotepp - 5/29/12 at 9:26am