Dell OptiPlex GX520 & GX620: CPU Upgrade to P4 and Pentium D

[shulfe]

I will tell tomorrow. About LEDs, unsure its was all OFF

[DeathBringer]

Please tell me exactly: did you computer reboot normally or halt when you "Load defaults and exit" in BIOS?
What kind of keyboard you have: USB or PS\2?

[shulfe]

Halt.
USB keyboard

[DeathBringer]

Please make new experiment:
1. Unplug all(!) usb cables from your computer except keyboard & mouse.
2. Power on your computer.
3. Boot Windows.
4. Open command line and type:
shutdown -r -t 120
5. Unplug keyboard & mouse.
6. Wait till your computer reboot.
Does it boot normally? Or halt?
Please check diagnostic LEDs status.

[shulfe]

I didm't find that adress, attach all MSR.
When halt all LEDs off, POST card show last code until reset, reset signal on pci normal state, no reaction on power button.

I find processor wich work normal - Pentium D 915 SL9DA costa rica. All P D8xx malay series doesn't work after reset. Tomorrow I will try new experiment and try anouther P D9xx.

[DeathBringer]

Press CPU MSR registers button, press User list button or F5, type a=0x198, press Add, type b=0x1A1, press Add, press Done.
Post values of MSR with addresses 0x198 and 0x1A1.
Please post S-spec of CPUs that "doesn't work after reset" too.

[shulfe]

D945 SL9QQ work
D930 SL94R work
D830 SL88S not work - no windows boot - reset and halting
D820 SL88T not work after reset
D820 SL8CP not work after reset

MSR on 820:
a 0x198 00000E2B00000E2B 00000E2B00000E2B
b 0x1A1 0000000000000000 0000000000000000

I try command "wpeutil shutdown -r -t 120", unplug all USB - PC just OFF, no reboot.

[DeathBringer]

OK. Try "wpeutil reboot" and very quickly unplug keyboard & mouse.
Does it boot normally in that case? Or halt?

[shulfe]

i don't know quickly on not, but it halt

[DeathBringer]

"very quickly" is "before windows shutdown".
Do D915, D930 and D945 work with native BIOS, my first mod or mod2?
When system halted with D820 (not D830) after reboot - any messages on the screen?