IBM 6C4 - Manual (Page 188)

Declared Acoustical Noise Emissions
Product
Configuration
Declared A-Weighted Sound Power
Level, LWAd (B)
Declared A-Weighted Sound
Pressure Level, <LpAm>(dB) at 1
meter Bystander Position
Operating Idling Operating Idling
7028-6E4
(Deskside)
6.0 5.9 42 41
7028-6C4 (Rack
Drawer)
6.1 6.0 44 43
Notes:
1. LWAd is the declared (upper limit) sound power level for a random sample of machines. (1B =
10dB)
2. LpAm is the mean value of the A-weighted sound pressure level at the 1-meter bystander
positions for a random sample of machines.
3. 7028 Model 6E4 levels apply to the following system configurations: 2 way 1 gigahertz
processor, 2 disk drives, 2048 GB of RAM, non-redundant power supply (One power supply,
1 processor fan)
4. 7028 Model 6C4 levels apply to the following hardware configurations: 2 way 1 gigahertz
processor, 2 disk drives, 2048 GB of RAM, redundant power supply (Two 645 watt power
supplys, 2 processor fans)
5. All measurements made in conformance with ISO 7779 and declared in conformance with
ISO 9296.
170 pSeries 630 Model 6C4 and Model 6E4 User’s Guide