Thermalright SI-120 High Performance CPU Cooling Heatsink

Pros: The SI-120 works great. My 4800+X2 runs at 42c under full load, that’s with prime95 running the torture test on both cores for hours. I have my adjustable 120 mm fan set at 1700 rpm, very quite. I also used artic silver5, and my system is not over clocked. The SI-120 sits up high so there is plenty of room for your ram. Installation was very easy

Cons: none

Comments: I installed this on a Pentium 4 D 830 with Arctic Silver5. Works great and takes CPU temperatures down to about 37C at idle vs. the stock heatsync/fan which was running over 45C. If you're installing this on an LGA775 socket, don't forget to buy the adapter (about $6.00). Also, motherboards that support the Pentium 4 D have a 4 pin cpu fan connector vs. the standard 3 pin. This is so that the fan speed can be controlled by the MB bios via PWM (Pulse width modulation). If you want that feature to work, make sure the fan you buy has the 4 pin connector. It may also say PWM capable. The SI-120 is a taller version of the XP-120 which has been well reviewed and comes highly recommended but is apparently a little short to clear components on a few motherboards. I have read where others complained that this heatsync isn't all copper. Who cares? It works!

Pros: Pretty good cooler that does a little better than XP-120. My XP-90C does just as good basically with its 90mm fan.

Cons: Not as good as the newer SI-128. The price should be in 30's, not the 40's. Big Typhoon is way better--Big Typhoon is the king of this type of coolers (upright coolers are even more efficient).

Overall Review: Would like to try taking off the IHS (integrated heat-spreader) so that the naked CPU would be like 5 or 8 degrees cooler. The voltage is already high enough anyways.. or else it'd eat too much electricity!

Pros: simply the best cooling(air) period in the past month have bulit 5 new syatems with this cooling set up all amd 939 oc 2.7-2.9 keeps all around 28-31c idle 34-37.5 under load (prime 95) 3+ hours using artic 5 and aspire 120mm fans

Cons: none

Overall Review: if you plan oc or just like cool get this

Pros: Very light weight for its size Looks awesome inside your case clears the ram slots no problem.

Cons: Awkward mounting the fan

Overall Review: I am running this heatsink with a 120mm Silverstone fan (110CFM) with amazing results, atleast 15c under what i used to run at when i am at idle, about 10c at full load on a 3800+ X2

Pros: Excellent heat dissipation and cooling. It kept my OCd A64 3200 at least 12C lower than stock when idle and about 10C lower than stock when maxed out. It is also very light, I expected it to be heavy but the aluminum made it much lighter. The supplied TIM is decent but some AS-5 would be better obivously.

Cons: .

Overall Review: Overall, a very good aftermarket heatsink.

Comments: The SI-120 is a new & improved version of the popular XP-120. It is compatable with all P4 and K8 motherboards and will cool your CPU about 1 degree celcius more than the XP-120. If you're thinking about getting an XP-120, don't get this. The XP-120 is now outdated. I bought one of these last week, you can't go wrong with this heatsink and it looks great to boot.

Pros: Awesome cooling! Big heatsink, but light in weight. Does a great job of cooling the capacitors and the passive north and south bridge cooling on the A8n32-SLI Deluxe. Easy install with the board out.

Cons: Can't think of any.

Overall Review: You might have to take the mobo out to install it, but not sure since I was doing a new build.