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Problem
Many customers are buying the XC CUBE EA65. EY65 and EZ65 Systems with Intel Prescott Socket 478 CPU’s 3.0Ghz, 3.2Ghz, 3.4Ghz with Hyper Threading which do not work.
Symptoms
Symptoms for this combination include the following…
- Incorrect CPU speed detected by system bios and system malfunction
- No Post
Solution
The Prescott CPU’s are not fully supported on the most of the XC CUBE. This platform was designed around the Northwood CPU’s and has limited support for the Prescott CPU. The Prescott CPU list is limited and as follows.
Vender |
Processor |
FSB |
Multiplier |
Intel |
Pentium 4 Prescott 2.80 GHz |
533 MHz |
21 x |
Intel |
Pentium 4 Prescott 2.40 GHz |
533 MHz |
18 x |
Intel |
Celeron D 345 (3.06 GHz) |
533 MHz |
23 x |
Intel |
Celeron D 340 (2.93 GHz) |
533 MHz |
22 x |
Intel |
Celeron D 335 (2.80 GHz) |
533 MHz |
21 x |
Intel |
Celeron D 330 (2.66 GHz) |
533 MHz |
20 x |
Intel |
Celeron D 325 (2.53 GHz) |
533 MHz |
19 x |
Intel |
Celeron D 320 (2.40 GHz) |
533 MHz |
18 x |
Intel |
Celeron D 315 (2.26 GHz) |
533 MHz |
17 x |
This applies to the following models of XC Cube
EA65
EZ65
EY65
To enable support for the above CPU’s only, the system would need to be upgraded to the latest bios version which can be downloaded from the following links…
EA65 bios version R1.11
http://download.aopen.com.tw/userdownload_List.aspx?RecNo=8744&Model=EA65
EZ65 bios version R1.20
http://download.aopen.com.tw/userdownload_List.aspx?RecNo=8795&Model=EZ65
EY65 bios version R1.20
http://download.aopen.com.tw/userdownload_List.aspx?RecNo=8795&Model=EY65
Please make careful note of the above table as all the Prescott CPU’s with Hyper Threading are not supported. This support list for our current stock will only support up to Intel Prescott 2.8Ghz 533FSB non HT, and up to Celeron D 3.06Ghz 533FSB at this point only, with the latest bios updates.
There are new models of the XCUBE ie. EA65-II, EX65-II, EY65-II, EX661 which will support the Prescott CPU up to 3.4Ghz at this time. These models are not available to us as yet.
Affected Products
EA65
EZ65
EY65
With Intel Prescott CPU’s 800 FSB + Hyper Threadin |