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2188
November 27th, 2017 14:00
Optiplex 745 not booting after changignCPU
i have an old optiplex 745 and i jst switched the processor from a Core 2 Duo E6400 to a E6550 that i know works But it does not boot or post any errors or any error beeps the fans just spin really fast and thats al, bios is updated to latest 2.6.6 its the USFF kind wanna get it working for the kids any ideas will be appreciated
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ieee488
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11.1K Posts
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November 27th, 2017 15:00
Switch back the old CPU and see what happens.
Warbear
2 Posts
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November 30th, 2017 23:00
it boots only problem is when i put in the mentioned cpu it wotn boot up
speedstep
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47K Posts
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December 1st, 2017 04:00
The answer is that it doesn't like the CPU when you go from 1066mhz to 1333mhz fsb. Only 1066 Mhz , 800Mhz, 533Mhz FSB cpus are supported in this model. Intel® Q965 (ICH8) Express Chipset
https://ark.intel.com/products/27732/Intel-82Q965-Graphics-and-Memory-Controller
Integrated Intel Graphics Media Accelerator 965
Graphics Core Intel® Graphics Media Accelerator 3000
There is no support for this there is no Help for this.
https://www.dell.com/downloads/global/products/optix/en/opti_745techspecs.pdf
Other parameters of the cpu are identical.
Code Name Products formerly Conroe
Processor Number E6400
Processor Base Frequency 2.13 GHz
Lithography 65 nm
VID Voltage Range 0.8500V-1.5V
Bus Speed 1066 MHz FSB
E6550
Processor Base Frequency 2.33 GHz
Lithography 65 nm
VID Voltage Range 0.8500V-1.5V
Bus Speed 1333 MHz FSB
These are the ONLY supported Core2 duo series and Quad Series.
Intel Core 2 Duo
E4300 - HH80557PG0332M / BX80557E4300
E4300, 1.8 GHz, FSB 800 MHz, L2 2 MB
E4400 - HH80557PG0412M / BX80557E4400
E4400, 2 GHz, FSB 800 MHz, L2 2 MB
E4500 - HH80557PG0492M / BX80557E4500
E4500, 2.2 GHz, FSB 800 MHz, L2 2 MB
E4600 - HH80557PG0562M / BX80557E4600
E4600, 2.4 GHz, FSB 800 MHz, L2 2 MB
E4700 - HH80557PG0642M / BX80557E4700
E4700, 2.6 GHz, FSB 800 MHz, L2 2 MB
E6300 - HH80557PH0362M / BX80557E6300 / BX80557E6300T2
E6300, 1.86 GHz, FSB 1066 MHz, L2 2 MB
E6320 - HH80557PH0364M / BX80557E6320
E6320, 1.86 GHz, FSB 1066 MHz, L2 4 MB
E6400 - HH80557PH0462M / BX80557E6400
E6400, 2.13 GHz, FSB 1066 MHz, L2 2 MB
E6420 - HH80557PH0464M / BX80557E6420
E6420, 2.13 GHz, FSB 1066 MHz, L2 4 MB
E6600 - HH80557PH0564M / BX80557E6600
E6600, 2.4 GHz, FSB 1066 MHz, L2 4 MB
E6700 - HH80557PH0674M / BX80557E6700
E6700, 2.66 GHz, FSB 1066 MHz, L2 4 MB
Intel Core 2 Quad
Q6600 - HH80562PH0568M / BX80562Q6600
Q6600, 2.4 GHz, FSB 1066 MHz, L2 8 MB
http://browse.geekbench.ca/geekbench2/view/18788