Solved Link to reliable download source for PB desktop BIOS update

January 18, 2016 at 08:31:23
Specs: Windows 7 Pro 64-bit, Pentium 4 3.06GHz / 4GB RAM
I'm looking at upgrading the CPU to P4 HT 670 SL8PY 3.8 GHz / 2M / 800 / 04B.

Does anyone:

1. Know the best BIOS update for this mobo/CPU?

2. Have a link to a reliable BIOS download site where it is available?

3. Know of any potential compatibility problems?

Main details of current setup:

Packard Bell iMedia 5070
Operating System
Windows 7 Professional 64-bit SP1
Intel Pentium 4 519K SL8JA
Cores 1
Threads 1
Code Name Prescott
Package Socket 775 LGA
Technology 90nm
Specification Intel Pentium 4 CPU 3.06GHz
Family F
Extended Family F
Model 4
Extended Model 4
Stepping 1
Revision E0
Instructions MMX, SSE, SSE2, SSE3, Intel 64, NX
Virtualization Not supported
Hyperthreading Not supported
4.00GB Dual-Channel DDR @ 133MHz (3-3-3-8)
VA703-3Series (1280x1024@60Hz)
ATI Radeon HD 5450 1GB
111GB Seagate ST3120026A ATA Device (ATA)
Optical Drives
High Definition Audio Device

Any helpful info much appreciated.

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January 18, 2016 at 10:44:28
✔ Best Answer
Did you try the CPU yet without making any changes?

Reliable BIOS? There's only one place - Packard Bell. You could take a chance & try a Gigabyte BIOS but if it doesn't work, you may end up bricking the board in which case it will have to be replaced.

You currently have a 533MHz FSB CPU. According to the following manual, your motherboard does support 800MHz FSB.

You're already running the wrong RAM for your current CPU so if you upgrade to an 800MHz FSB CPU, you should also upgrade to DDR400 RAM (ideally it should be DDR533). The reason being is that the architecture used in the P4 is inefficient. To help makeup for the inefficiency, the CPU:DRAM frequency ratio should be either 3:4, 4:5, or 5:6 rather than the "normal" ratio of 1:1 which is considered optimal for most other CPUs. In other words:

400MHz FSB should use DDR266 (3:4 ratio)
533MHz FSB should use DDR333 (4:5 ratio)
667MHz FSB should use DDR400 (5:6 ratio)
800MHz FSB should use DDR533 (3:4 ratio)

You have 533MHz FSB with DDR266 which is 1:1. If you switch to an 800MHz FSB CPU & keep your current RAM, that ratio would be 3:2.

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January 19, 2016 at 00:18:56
Many thanks for your informative reply, riider.

I have not tried the CPU with the existing BIOS version (10v) as it does not appear to support HT (the current Intel Pentium 4 519K SL8JA is non-HT). I know from a bad experience with a Dell machine that if you replace a non-HT CPU with an HT CPU before updating the BIOS to an HT-friendly version you lose the HT function. I would prefer to proceed cautiously and update the BIOS first.

When I run the PB serial number recognising app it quotes the serial number as 041411720075, but the PB support website says "Serial Number not found". Clearly, if the model is not on the recent maufacture list it would not appear to be accessible via the UK PB support website. Does PB have a BIOS archive somewhere? has no BIOS downloads for this board (GA-8I915PM) as far as I can see.

What I need is access to a reliable site where I can find the latest (or at least an HT-capable version) of the BIOS.

Many thanks for your RAM info!

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