MotherBoard CPU Freq support less than CPU

tonyknapp91

Prominent
Oct 8, 2017
2
0
510
Hello, I have possibly made a foolish error.

I have a Mini-ITX I would like to upgrade.
For free, I have a acquired a refurbished GTX 970.

I have acquired a refurbished Intel Xeon E3-1280 v2. I clearly made a huge mistake when I ordered this CPU (though I got it at a great price).

My RAM is fine, but I would really like to upgrade my graphics with this GTX 970 I now have. My current MB only has PCI 2.0, so I need a MB that has a PCI Express 3.0 x16 and supports the DDR3 1333 240 pin RAM I have, and hopefully this E3 CPU.

Newegg lists only one option (for DDR3 1333 240pin, PCIe 3.0):
Asus P8H61-I R2.0

Here is the thing. The P8H61-l R2.0 supports the E3-1280's chipset (H-61), its TWD (69W), its core/hyperthread count (4/8), and its L3 Cache (8MB), but not its Frequency (3.6GHz).

Of course, the E3-1280 is not listed as a supported CPU for the Asus P8H61-I R2.0 (likely for this reason, as the E3-1245 v2 is listed as supported).

Should I order the P8H61 anyhow and expect the E3-1280 v2 to run at 3.5GHz instead of 3.6GHz? Or will it simply not work.

(I doubt it will not work, as CPUs run at lower clock speeds when they are not under a load. But I am uncertain, hence I turn my most reliable source of information, internet forums).


The alternative option is to try and find another MB CPU combo that supports PCIe 3.0x16 and DDR3 240pin RAM for a reasonable price, or if it is less buy a MB CPU RAM combo that pairs with the GTX 970 (for Mini-ITX) and list the E3 on ebay.

Other Details:
PSU: CX500M
RAM: G.SKILL Ripjaws X F3-10666CL9S-8GBXL
Old GPU: GTX 560 Ti
Old CPU: AMD A8-3870K Unlocked
Old MB: AsRock A75M-ITX
OS(es): Lubuntu 16.04.3 LTS (off of HDD), Windows 10 Professional (off of SSD).

I read many forum posts before posting this to try and re-assure myself. This was the most helpful.

Thank you so much for your time.
 

tonyknapp91

Prominent
Oct 8, 2017
2
0
510


Thank You so much, I had no idea that was the case. I guess I should have googled more about PCIe a long time ago, but with RAM and CPU socket sizes being unique I had just assumed that PCIe were too. You have saved me so much money.