c4onthefloor

I'm keeping them reliable and stock. This rig is going to be used for running game servers. Don't need it crashing every 3 hours

Just built this rig a few days ago. Dell R610 rack server upgraded with 2x Xeon X5675s and 24gb of ecc ram with those. In total, I paid under $300 for this whole setup. I'd say I did pretty darn good.

yeah I tested it like 3-4 times in a row just to make sure it wasn't a coincidence. its a really weird thing. But hey, I finally figured it out after like 10 hours of hair pulling all day. Mainly had the side panel off because im upgrading cpu and ram pretty soon here and I didn't really feel like putting the panel back on. Guess i'll make sure to keep that in mind with future dell products. Weird way of engineering something.

Up I figured it out. this is the stupidest thing ive literally ever seen. If the server rack's side panel is off, the cpu wont go above 2.4Ghz, but with the side panel on, it goes right up to a happy 3.06Ghz. Dell must use some sort of sensor on the side panel and if its off them limit power or something. Who would have guessed that in a million years

ive tried both with speedstep on and off. same result. Ive kept temps in check, and at 2.4Ghz and 78% cpu usage its at around give or take 55-60c across all cores. I dont think its temp related. I tested with a set of 2 original cpus that came with this board (xeon e5520) and it did the same thing. 78% utilization and I think it was around 1.8Ghz out of its 2.4 Ghz full clock speed. This is a dual socket board, but can also run with 1 single cpu which is what Im currently doing.

I recently picked up a dell r610 rack server and plan on using is for running a few private game servers. I got windows server 2012 installed on it and everything works just fine, besides the cpu actually going to its clock speed when its at load. I turned on cpu turbo frequency in the bios as well as cpu c states and the cpu still only gets up to 2.40 Ghz and also wont go above 78% cpu usage when I stress it in Windows. The cpu in question is a xeon X5675 that has a base clock speed of 3.07 Ghz. I also went through all the windows power settings and made sure nothing would hold the cpu back there. Anyone got an idea of what would cause this?