I've got a dual 1 GHz AlphaServer ES47, and I bought a dual 1.15 GHz module (IIRC part number 54-30252-LG, but could be wrong). When installed, the new CPU module still just runs at 1 GHz.

I removed the CPU heatsinks from the old and new modules and discovered that all four EV7 CPUs are actually marked as "1150 MHz".

I've been through about every MBM> command and can't find anything that looks like it could configure the CPU frequency.

Running the UNIX command 'strings' on the ES47 firmware image, I see things that indicate that there are options somewhere for controlling the CPU frequency.

This string indicates that there's a "CMM" menu with relevant options:

> z - connect to EV7 com port
> quiet_mode enabled
> f - set frequency
> a - send a test alert
> EV7 COM%d port passthru mode on CPU%d, use <esc><esc>CMM to return.
> [...]
> CMM>
> [...]
> CMM Commands:
> [...]
> f <ev7 freq in Mhz> [ip ratio [io ratio [zbox ratio]]]

Also:

> /tyCo/%d
> /tyCo/1
> Starting PPP to CMM %d, IP: %s, line: %s

and

> 192000
> cmm_serial_baud

So there appears to be some way of connecting to the CMM via a serial console?

> MBM> show cmm_serial_baud
> cmm_serial_baud 192000

Additionally, there are these strings:

> EV7 clock frequency set to %d MHz on next power cycle.
> ev7_clocks: M reg: %x, N reg: %x, YDIV reg: %x
> [...]
> Setting EV7 freqency to %d MHz on the next power-on
> Setting EV7 IP Clock Ratio to %d.%d on the next power-on
> Setting EV7 IO Clock Ratio to %d.%d on the next power-on
> Setting EV7 ZBOX Clock Ratio to %d.%d on the next power-on
> SetFreq
> [...]
> Setting CPU(or IO) 1.5 voltage to %d mV on the next power-on
> Setting Term voltage to %d on the next power-on
> Setting RIMM voltage to %d on the next power-on
> Setting EV79 Core voltage to %d on the next power-on
> SetVolts
> [...]
> Server Management has detected a memory/processor frequency combination that
> is not supported by Hewlett Packard. It is recommended that you contact hp
> support to correct this mis-match to guarantee highest system availability.

Does anyone know how to configure the CPU frequency or to enter the "CMM>" menu?

Thanks,
Matt