I just checked the schematic and it includes pull-up resistors so that's OK.
The schematic shows 3.3v power going to the chips. Perhaps you should not connect it to +5v.
ADXL345 Supply voltage range: 2.0 V to 3.6 V
HMC5843:
AVDD Referenced to AGND 3.3v Max
DVDD Referenced to DGND 2.0v Max
ITG-3200:
Operating Voltage Range: 2.1v - 3.6v