Checkpoint UTM272 shutdown itself because of temperature reached (60 C)

One of my UTM272 cluster members lost connection to our management console. Even tried cold reset, it will still not showing up in Smartview monitor. Connected console cable into this UTM, and found following info in the console screen:

                           Phoenix Technologies, LTD
                             System Configurations
+==============================================================================+
| CPU T: Intel(R) Celeron(R) M processor  Base Memory       :    640K          |
| CPU I: 0695/45D                         Extended Memory   :1038336K          |
| CPU C: 600MHz                           Cache Memory      :    512K          |
|——————————————————————————|
| Diskette Drive A  : None                Display Type      : EGA/VGA          |
| Diskette Drive B  : None                Serial Port(s)    : 3F8 2F8          |
| Pri. Master Disk  : None                Parallel Port(s)  : None             |
| Pri. Slave  Disk  : None                DDR2 at Bank(s)   : 0 2              |
| Sec. Master Disk  : None                                                     |
| Sec. Slave  Disk  : None                                                     |
+==============================================================================+
IDE Channel 2 . Master Disk  : LBA,ATA 100,  251GB

PCI device listing …
Bus No. Device No. Func No. Vendor/Device Class Device Class               IRQ
——————————————————————————–
    0       2         0     8086   2592   0300  Display Cntrlr               9
    0      29         0     8086   2658   0C03  USB 1.0/1.1 UHCI Cntrlr     11
    0      29         1     8086   2659   0C03  USB 1.0/1.1 UHCI Cntrlr     15
                                                                             
ACPI: Getting cpuindex for acpiid 0x1
ACPI: Getting cpuindex for acpiid 0x2
ACPI: Getting cpuindex for acpiid 0x3
ÿRed Hat nash version 5.1.19.6 starting
stabilized: stat /proc/bus/usb/devices: No such file or directory
  Reading all physical volumes.  This may take a while…
  Found volume group “vg_splat” using metadata type lvm2
  6 logical volume(s) in volume group “vg_splat” now active
INIT: version 2.85 booting
mount: proc already mounted
Configuring kernel parameters:  [  OK  ]
Setting clock  (utc): Fri Jan 13 15:53:38 GMT-5 2012 [  OK  ]
Starting udev: /etc/rc3.d/S00microcode_ctl: microcode device /dev/cpu/0/microcode doesn’t exist?
Checking for new hardware [  OK  ]
Updating /etc/fstab [  OK  ]
Starting WdHwSensors_init:  [  OK  ]
Starting lcdpanel_init:  [  OK  ]
Starting kdump:  [  OK  ]
Inserting vpntmod.2.6.18.cp.i686.noPAE: [  OK  ]
CKP: Loading SecureXL:  [  OK  ]
CKP: Loading FW-1 IPv4 Instance 0:  [  OK  ]
CKP: Loading VPN-1     Instance 0:  [  OK  ]
Configuring network:  [  OK  ]
Starting SMBFS mounts:  [  OK  ]
Starting system logger: [  OK  ]
Starting kernel logger: [  OK  ]
Starting rmatool:  [  OK  ]
CPshell initialization:  [  OK  ]
Initializing random number generator:  [  OK  ]
Starting acpi daemon: [  OK  ]
Starting sshd:[  OK  ]
Starting arp:  [  OK  ]
Starting crond: [  OK  ]
Running cp_http_server_wd: [  OK  ]
Running cpwmd_wd: [  OK  ]
Starting cpri_d:  [  OK  ]
Starting cpboot:

Critical temperature reached (60 C), shutting down.

This UTM 272 was running R71.30 and configured as cluster member and it was fine for several days with its pair. Pushed basic policy several times and leave it running for several days, no issue. Until starting to upgrade to R75.20, it failed during upgrade process, lost the connection. Not sure if upgrade completed or not.

Its weird since this is complete new set and was running fine on R71.30 in cluster mode. Have not met this before although have managed hundreds of UTM. Actually nothing I can do, just called support and RMA-ed it. Have you met this kind of problem, and any suggestion, please let me know. Thanks in advance.