[REQUEST] DELL Dimension 9200 / XPS410 Microcode Update

[DeathBringer]

BIOS was patched correctly. So it's not BIOS problem. I think it's VRM's problem, i.e a hardware incompatibility.

[CKY]

The published core voltage range for the Core 2 E6600 is 0.85 - 1.5V; for the SLGTD it is 0.85 - 1.36V. Not much difference. I'm starting to miss the days when MOBOs had a handful of jumpers. Again, I appreciate all your effort. Maybe this exchange will answer questions for other 9200/XPS users.

[DeathBringer]

Try to find Wolfdale CPU with FSB=800Mhz - Pentium E5x00
Do you use PCI-E graphics? Try to find old PCI graphics.

[CKY]

Try to find Wolfdale CPU with FSB=800Mhz - Pentium E5x00
Do you use PCI-E graphics? Try to find old PCI graphics.

I do not have any other Wolfdale CPUs.  Am using a PCI-E graphics card.  Replaced it with a PCI one and still no luck.
I have two SLGTD/E7600 CPUs and just tried them in an Optiplex 755; they work fine there.

[DeathBringer]

Try to find Core 2 Duo E7300 or E7500. They has non-fractional multiplier.

[CKY]

Try to find Core 2 Duo E7300 or E7500. They has non-fractional multiplier.

It did occur to me that the clock multiple might be an issue, since the Vcore voltage and FSB seemed compatible.   I'll see if I can pick up a cheap E7500 and give it a try.

[DeathBringer]

I've compared datasheets for 65-nm & 45-nm CPUs for LGA775.
Some differences was found:

Code:

Pin    65-nm      45-nm
AK1    THERMDC    FC24
AL1    THERMDA    FC25
C9     FC38       FC41
L2     TESTHI13   SLP#
P1     TESTHI11   DPSLP#
T2     FC4        DPRSTP#
Y1     FC0        FC0/BOOTSELECT
Y3     FC17       PSI#

[DeathBringer]

Try to isolate pad AK1 & AL1 on your current CPU and try to boot.
Then also isolate these pads: L2, P1, T2, Y3.
And try to boot again.
In case of successful results do it with new CPU.

[CKY]

Can't think of a way to do that which does not involve irreversible modification of the socket pins. Or one could apply lacquer to the CPU pins, but it would take a steadier hand than mine.

[DeathBringer]

Just use some pieces of sticky tape and pincette. Glue them to CPU.
Look at LGA775 pinout (CPU top view).