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September 9th, 2024 07:16

Studio XPS 435MT, cannot upgrade to BIOS 1.1.2

I am trying to update the BIOS on my aged Studio XPS 435MT.

My BIOS version is 1..1.1, and the latest BIOS update is 1.1.4

I have tried to follow the procedures at https://www.dell.com/support/home/en-ca/drivers/driversdetails?driverid=r253098&oscode=wv64&productcode=studio-xps-435

The bootable USB drive option leads to a black screen with a blinking cursor (no C:\ prompt). I have tried both FreeDos and the method outlined by Dell here https://www.dell.com/support/kbdoc/en-ca/000145519/how-to-create-a-bootable-usb-flash-drive-using-dell-diagnostic-deployment-package-dddp

Attempts to execute the BIOS update via the Windows method results in a "failure to launch" message.

I am running Windows 10 on an internal SSD, as I was anxious to have security updates when Vista support was discontinued. FYI - attempts to update the BIOS when I was still running Vista also failed.

Any suggestions?

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11.8K Posts

September 9th, 2024 14:27

first thing to do is replace cmos battery w a new one then clear cmos settings via motherboard jumper

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11.8K Posts

September 9th, 2024 14:30

Re: My BIOS version is 1..1.1, and the latest BIOS update is 1.1.4

this is a very old Intel 1st gen i7 pc.  bios 1.1.4 does not have much better security than 1.1.1.  both were written many years ago.  I believe the 435MT is End of life.  1.1.4 is circa 27 Dec 2009

All you need is have latest Win 10.  You do not need a most uodated yet still ancient bios to improve security,

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September 10th, 2024 06:17

@redxps630​ Thanks. I will try that

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September 10th, 2024 06:18

@redxps630​ Understood re: end-of-life. But, I want to upgrade the CPU and want to lessen the chance of incompatibility issues.

9 Legend

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11.8K Posts

September 10th, 2024 13:36

The 435MT, unlike its bigger cousin tower 435T, does not enjoy a bios upgrade to support gulftown 6 core cpu or equivalent Xeon cpu.  The bios 1.1.4 does nothing to help w cpu upgrade in 435MT. 

cpu is limited to 4 core Intel 1st gen. 

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September 10th, 2024 16:16

@redxps630​ Understood re: 6 core cpu. I am planning on upgrading to the highest compatible 4 core (to i7-975, from i7-920).

9 Legend

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September 10th, 2024 18:53

it appears old bios in early 2009 already supports i7 975

https://www.userbenchmark.com/UserRun/46545982

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September 10th, 2024 22:02

@redxps630​ Thanks. Seems updating the bios might be too much pain for the gain.

9 Legend

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11.8K Posts

September 10th, 2024 22:43

not only little gain but unnecessary risk as these old mobo bios can be brittle.  a failed or stalled flash bricks the board.

incidentally i7 975 may need a more beefy cooler or liquid cooler than 920.  but you can not overclock in the 435MT

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September 11th, 2024 03:26

@redxps630​ Understood. Will be watching for extra heat and will upgrade the cooler if need be.

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