are you doing a processor upgrade on your GXa? you do not need to downgrade. if you have a GX1 then you need to downgrade.

available at http://support.dell.com/filelib

-------- My Specs -------

Dell OptiPlex GX1 400MTbr+
Pentium II Processor 400MHz
64MB -> 192MB SDRAM
Maxtor 90845D4 8GB
LG CRD-8400B CDROM
Samsung SW408B CDRW Drive
Windows 2000 Professional SP2+SRP1
Lucent V.90 WildWire Modem by Compaq
harman/kardon HK-LE speakers
Dell QuietKey Keyboard
Microsoft IntelliMouse 1.3A

Thanks for the helpp realy appreciate it.

I'm trying to upgrade my Dell OptiPlex GXa 266 Pentium II using the PowerLeap PL-iP3/T 1000C processor upgrade.

BIOS is at A10

RAM is 256

I can power up the PC, but the computer just keeps cycling and repeating through the memory check.

Tried with the jumpers on  PowerLeap PL-iP3/T 1000C set to 66, 100 and 133 and still same problem.

Any suggestions?

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@tony8gj wrote:

I'm trying to upgrade my Dell OptiPlex GXa 266 Pentium II using the PowerLeap PL-iP3/T 1000C processor upgrade.

BIOS is at A10

RAM is 256

I can power up the PC, but the computer just keeps cycling and repeating through the memory check.

Tried with the jumpers on  PowerLeap PL-iP3/T 1000C set to 66, 100 and 133 and still same problem.

Any suggestions?

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You cannot update the GXa to a Powerleap and tualtin.
Only the GX1 supports this.

Bios A09 works fine with all the supported cpus for the GXa which isnt many

GXa bios is not for GX1 nor vice versa

The GXa supports only the 440LX 66mhz bus
The GX1 supports the 440BX and 100mhz bus