Dell Precision T3500 Statement of Volatility
Summary
The Statement of Volatility for Dell Precision Workstation T3500 documents volatile and non-volatile components on the motherboard. It covers BIOS configuration flash memory, ICH CMOS battery-backed memory, embedded controller non-volatile and volatile storage, and details data retention characteristics for each component. Target users are IT security professionals, compliance auditors, and technicians handling workstation decommissioning.
Page 1 Text Content
Dell Inc. One Dell Way Round Rock, Texas 78682
April 24, 2009
Subject: Statement of Volatility – Dell Precision Workstation T3500
Madam/Sirs:
The Dell Precision Workstation T3500 contains both volatile and non-volatile (NV) components. Volatile components lose their data immediately upon removal of power from the component. Non-volatile components continue to retain their data even after the power has been removed from the component.
The following NV components are present on the T3500 motherboard:
BIOS Configuration The BIOS software is stored in a 16 Mbit flash IC, which is identified as U_BIOS on the motherboard. U_BIOS contains the boot code and data necessary to take the hardware from a power-off or low-power state to a state where it is ready to be managed by the operating system. No information pertaining to user applications or data is stored in the U_BIOS device, however, it does store administrator and/or hard drive encryption passwords if those features are enabled by the user.
ICH CMOS The ICH, identified as U_ICH, contains a 256 Byte battery-backed memory. This memory contains custom configuration data required by the BIOS to boot the system. It does not store passwords or other user level data.
The contents of this memory are not lost when AC power is removed from the system. The data in this memory can be cleared by installing the RTCRST jumper or by removing the coin cell BATTERY, with AC power removed.
Embedded Controller The Embedded Controller contains 192 k Byte of non-volatile storage space and is identified as U_EC on the motherboard. The EC contains the software necessary to manage low-level control functions on the motherboard such as thermal control. No information pertaining to user applications or data is stored in the U_EC device.
The embedded controller also contains 16 k Bytes of volatile memory space. The contents of this memory space are lost when AC power is removed from the system.
Fan Controller The Fan Controller, U_HWM, is a factory-programmed device that monitors and controls the various fans needed for proper thermal operation. This device contains 32k bytes of ROM. The data inside the ROM is not accessible to the user. No information pertaining to user applications or data is stored in the Fan Controller.
Page Summary Contents For Dell Precision T3500 Statement of Volatility
Manual Details
| Brand | Dell |
|---|---|
| Pages | 3 |
| File Size | 108.09 KB |
| Published | June 25, 2026 |
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Frequently Asked Questions
What data is stored in the ICH CMOS memory?
It contains custom configuration data required by the BIOS to boot the system, but it does not store user passwords or other user level data.
How can I clear the ICH CMOS memory contents?
You can clear the data either by installing the RTCRST jumper or by removing the coin cell BATTERY while AC power is removed.
What information is stored in the Ethernet Controller EEPROM?
It stores driver information and the system MAC address, but it does not store passwords, IP addresses, or domain names.
Which components lose data upon primary power loss?
All user data in main system memory (DDR3 DIMMS) and add-in graphics/storage interface devices will be lost. Secondary power loss impacts SIO and ICH.