ThinkStation

[#1]

I have just started to deploy the ThinkStation D20 (MT - M 4158 - W5K)  to our engineers and they appear to work great except so far a couple of users are reporting they freeze to the point they have to reboot.

Looking at the Event Log, it reports

WMIxWDM - Machine Check Event reported is a fatal TLB error

I have pasted in the entire event log. They have the same type error on each machine.

I have run out of D10 machines so I have had to deploy the D20 and the new machine is great, except for this freezing issue which is severe.

Event Type:    Error
Event Source:    WMIxWDM
Event Category:    None
Event ID:    121
Date:        11/18/2009
Time:        11:45:36 AM
User:        N/A
Computer:    WED2001455
Description:
Machine Check Event reported is a fatal TLB error.
 Transaction Type: 3
 Memory Hierarchy Level: 3
 Address: 12637776960

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 01 00 00 00 01 00 00 00   ........
0008: 46 75 b0 69 6e 68 ca 01   Fu°inhÊ.
0010: 08 00 00 00 00 00 00 00   ........
0018: 08 00 00 00 00 00 00 00   ........
0020: 9f 00 01 00 00 88 1c ee   Ÿ....ˆ.î
0028: 40 2c 45 f1 02 00 00 00   @,Eñ....
0030: 00 40 00 00 a8 bf 0e 23   .@..¨¿.#
0038: 00 00 00 00 00 00 00 00   ........
0040: 00 00 00 00 00 00 00 00   ........
0048: 00 00 00 00 00 00 00 00   ........
0050: 00 00 00 00 00 00 00 00   ........
0058: 00 00 00 00 00 00 00 00   ........
0060: 00 00 00 00 00 00 00 00   ........
0068: 00 00 00 00 00 00 00 00   ........
0070: 00 00 00 00 00 00 00 00   ........
0078: 00 00 00 00 00 00 00 00   ........
0080: 00 00 00 00 00 00 00 00   ........
0088: 00 00 00 00 00 00 00 00   ........
0090: 00 00 00 00 00 00 00 00   ........
0098: 00 00 00 00 00 00 00 00   ........
00a0: 00 00 00 00 00 00 00 00   ........
00a8: 00 00 00 00 00 00 00 00   ........
00b0: 00 00 00 00 00 00 00 00   ........
00b8: 00 00 00 00 00 00 00 00   ........
00c0: 00 00 00 00 00 00 00 00   ........
00c8: 00 00 00 00 00 00 00 00   ........
00d0: 00 00 00 00 00 00 00 00   ........
00d8: 00 00 00 00 00 00 00 00   ........
00e0: 00 00 00 00 00 00 00 00   ........
00e8: 00 00 00 00 00 00 00 00   ........
00f0: 00 00 00 00 00 00 00 00   ........
00f8: 00 00 00 00 00 00 00 00   ........

[#2]

what brand(s), type(s), and size(s) of memory modules do you have installed in this system?

[#3]

I will have to open a machine when I get back at work, but these are ordered and come with two 4 GB sticks installed by Lenovo.