Pentium 4 3.0 GHz detecting as 2.0 GHz

November 9, 2010 at 23:24:16
Specs: Windows XP Pro SP3, Pentium 4 HT, 3.00 GHz-x64-1 Gb. DDR-400
Hello, I have noticed over the last couple of weeks that my computer has been running slow. Today when I turned it on I noticed that the processor was detecting as a "Pentium 4 2.00 GHz (133x15)." After rebooting twice I let Windows load and ram CPU-Z. It detected my CPU as a "Pentium 4 531 3.00 GHz" as the processor type but the core speed was at 1.988 GHz. I cleared the CMOS, and checked to make sure there was no under clocking done.

The odd part is that the BIOS is registering as supporting DDR-400 ram without any over clocking. My motherboard only natively supports DDR-266 without any over clocking. (I had OC'd my motherboard ram timings to run at the speed of my ram).

My motherboard is a Gigabyte GA-8I915PL-G rev 2.1 - BIOS revision F4,
My processor is an Intel Pentium 4 HT (531) 3.00 GHz and my ram is
a 512 Mb. Kingston PC-3200 chip and a 512 Mb. chip of Micron PC-3200 ram.

Pentium 4s - The processors for the rest of us.


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#1
November 10, 2010 at 00:19:08
i think u board support ddr 400, go in bios and set cpu freq to 200mhz, automatic ram will run at 400 ddr. Ratio 1:1 isn't for p4 but u have no choice. Are u sure the two ram are identical (timings)?

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#2
November 10, 2010 at 09:24:18
"Pentium 4 3.0 GHz detecting as 2.0 GHz"

You're running the FSB at 533MHz rather than 800MHz.

"My motherboard only natively supports DDR-266"

WRONG!

http://ee.giga-byte.com/products/mb...


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#3
November 10, 2010 at 10:19:14
I forgot to mention that the FSB was registering as 533 MHz. I don't know what happened though because it used to be running at 800 MHz. Also, the motherboard is marked "DDR 266"

Pentium 4s - The processors for the rest of us.


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Related Solutions

#4
November 10, 2010 at 11:19:09
someone underclocked the cpu. Enter bios and correct the settings.

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#5
November 10, 2010 at 14:05:47
I checked to see if anyone under clocked the CPU and nobody did. I cleared the CMOS already and if there was any clocking done it would have cleared it anyway. I was able to overclock to 2.4 GHz to use for now. I am going to flash the BIOS with the same version and if that doesn't work I am going to pull the current Pentium 4 and install a 3.2 GHz Pentium 4.

Pentium 4s - The processors for the rest of us.


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#6
November 10, 2010 at 21:05:20
"i was able to overclock to 2.4 ghz" u are not overclocking, u are still underclocking. No need to update bios just correct settings in bios, cpu freq must be 200mhz and ram freq 200mhz.

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#7
November 10, 2010 at 21:11:47
If I try to clock back up to 200 MHz core speed it will reboot with no video. The problem seems to be the FSB is at 533 MHz for an unknown reason.

Pentium 4s - The processors for the rest of us.


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