Processor Settings in BIOS not working???

**Baron_Osiris** · July 7th, 2004, 01:47 AM

I just built a computer for my friend. Specs:

Motherboard: Abit IT7-MAX2ver 2.0
Processor: Intel Pentium P4/2.4CGHz 800M 478P/512K HT RT
Memory: Corsair 512 DDR 32MX8 PC-2700 (1 stick)
Video: Geforce 3 MX 200 128MB
HD: 2 x 40G Western Digital
Power Supply: UNEEC 420W (combined 220w)

In windows, under system properties, it displays the following:

Computer:
Intel(R)
Pentium(R) 4 CPU 2.40GHz
1.60 GHz
512 MB of RAM

I change the settings in the BIOS to try and get the processor speed to 2.4GHz. Here are the settings as they appear in the BIOS.

*CPU Name Is Intel Pentium(R) 4
*CPU Internal Frequencey 1.6 GHz
CPU Operating Speed User Define
- Ext. Clock(CPU/AGP/PCI) 133/66/33 Mhz
- PCI Bus Frequency Ext. Clock/4
- Multiplier Factor x18
- DRAM Ratio H/W Strap High
- DRAM Ratio (CPU:DRAM) By Spd (4:5)

CPU Power Supply CPU Default
*x- Core Voltage 1.525v
*DRAM Voltage 2.5v

* = Values I cannot Currently change

When I change the settings in the BIOS they stick, but the speed does not change. I am baffled. I've change these settings on other computers and always get the results I am looking for.

I've tried clearing the CMOS several times, that does not work. I've tried loading the Optimized BIOS settings and that does not set the correct settings for this processor.

Even in device manager the processer shows up as two 2.4 GHz processors.

Anyone have any ideas on why these settings are not working?

**Baron_Osiris** · July 7th, 2004, 02:10 AM

I ran a BIOS update. That did not solve the problem.

**NooNoo** · July 7th, 2004, 06:17 AM

I would say the settings are working, they are just not displaying correctly. what does aida32 think the settings are?

**Stalemate** · July 7th, 2004, 08:40 AM

Originally Posted by Baron_Osiris

I just built a computer for my friend. Specs:

Motherboard: Abit IT7-MAX2ver 2.0
Processor: Intel Pentium P4/2.4CGHz 800M 478P/512K HT RT
Memory: Corsair 512 DDR 32MX8 PC-2700 (1 stick)
Video: Geforce 3 MX 200 128MB
HD: 2 x 40G Western Digital
Power Supply: UNEEC 420W (combined 220w)

In windows, under system properties, it displays the following:

Computer:
Intel(R)
Pentium(R) 4 CPU 2.40GHz
1.60 GHz
512 MB of RAM

I change the settings in the BIOS to try and get the processor speed to 2.4GHz. Here are the settings as they appear in the BIOS.

*CPU Name Is Intel Pentium(R) 4
*CPU Internal Frequencey 1.6 GHz
CPU Operating Speed User Define
- Ext. Clock(CPU/AGP/PCI) 133/66/33 Mhz
- PCI Bus Frequency Ext. Clock/4
- Multiplier Factor x18

...

Try 100 FSB and a multiplier of 24 instead.

http://www.abit.com.tw/abitweb/webjs...7MAX2v2-01.php

**NooNoo** · July 7th, 2004, 09:30 AM

ewps.... maybe I need more coffeeeeeeeee
hang on, aren't those procs locked.... so it wouldn't make a damn bit of difference what the bios says?

**hudsonsmith** · July 7th, 2004, 11:14 AM

Your mb supports 533fsb. http://www.abit-usa.com/products/mb/...ries=1&model=2 Your processor needs 800. Intel Pentium P4/2.4CGHz 800M 478P/512K HT RT

2400 / 800 = 3 --- 533 x 3 = 1600

**Stalemate** · July 7th, 2004, 01:30 PM

Originally Posted by hudsonsmith

Your mb supports 533fsb. http://www.abit-usa.com/products/mb/...ries=1&model=2 Your processor needs 800. Intel Pentium P4/2.4CGHz 800M 478P/512K HT RT

2400 / 800 = 3 --- 533 x 3 = 1600

I was wondering about that also.

But if his CPU has the 512K cache, then it should still operate at normal speed on a 845PE board, which the Abit is, as Intel confirms here, no?

The IT7-MAX2 V2.0, a flagship motherboard, is part of the ABIT MAX Series products, and offers users a robust, High performance, next generation Pentium 4 platform for the Intel 845PE chipset, with 533MHz FSB, DDR333 ...

**hudsonsmith** · July 7th, 2004, 04:27 PM

Note: Ensure that you are using a motherboard that supports the specified system bus speed for your processor system bus. Failure to use an appropriate motherboard may result in running your processor out of specification, which will void your processor warranty. Consult your motherboard manufacturer for compatibility.

Intel sells HT processors w/ the 512K cache in both 533MHz and 800MHz fsb, although the 533 is only available in 3.06GHz. All the others (including the 2.4GHz) have the 800MHz fsb. The 845PE chipset does not support 800MHz. Intel also sells 2.4GHz processors w/ the 512K cache and 533MHz or 400MHz fsb, but no HT.

**Baron_Osiris** · July 7th, 2004, 06:01 PM

Thanks for all the quick replies. I tried setting the multiplier to 24 and the cpu FSB to 100. That just changed the operating speed to 1.21 GHz.

After checking some specs on the ABit site I found this:

(the link Abit Specs)

Purpose: (H.M= Hardware Monitor)(CPU change: High to Low) CPU ID (ES/Tray/Box) Clock L2 Cache Real clock Measure Vcore /H.M Vcore Range Install WinXP MP4 → MP2
P4 2.4G 100*24 512K 2411.91 1.512 1.48 1.725~1.225 V V

P4 2.4BG 133*18 512K 2402.92 1.514 1.48 1.725~1.275 V V

There were many other processors but these were the only 2 2.4's.

After checking on newegg.com I can only find this:

Intel Pentium 4/ 2.4B GHz 533MHz FSB, 512K Cache - Retail

I do not see this processor on the list. However I can't seem to find the processors on the ABIT list at newegg. Will the processor I found work? Will any 2.4 Ghz processor with a 533 FSB work?

What is the significance of the 'B' or the 'G' or the 'BG' after 2.4?

Why won't the processor I have just clock down the FSB while maintaining the correct speed?

**hudsonsmith** · July 7th, 2004, 06:58 PM

Intel doesn't sell a 2.4BG, just 2.4 (400) 2.4B (533) and 2.4C (800). The "G" signifies GHz. Any socket 478 processor with a 533MHz fsb will work on your board. They are available up to 3.06GHz.

To answer your second question, your processor is clocking down the FSB. However, all intel processors have the multiplier locked. The muliplier setting on your mb is ignored. So if the processor is designed for an 800MHz fsb, the multiplier would be locked at 3. If you apply a 533MHz fsb to the multiplier of 3, you get 1.6GHz. If you apply 400MHz you get 1.2GHz.

**Baron_Osiris** · July 7th, 2004, 07:20 PM

Thanks for the explanation.

**Stalemate** · July 8th, 2004, 09:34 AM

Originally Posted by hudsonsmith

Intel doesn't sell a 2.4BG, just 2.4 (400) 2.4B (533) and 2.4C (800). The "G" signifies GHz. Any socket 478 processor with a 533MHz fsb will work on your board. They are available up to 3.06GHz.

To answer your second question, your processor is clocking down the FSB. However, all intel processors have the multiplier locked. The muliplier setting on your mb is ignored. So if the processor is designed for an 800MHz fsb, the multiplier would be locked at 3. If you apply a 533MHz fsb to the multiplier of 3, you get 1.6GHz. If you apply 400MHz you get 1.2GHz.

Now I know.