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3.0Ghz cpu running at 2.0 Ghz

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Anonymous
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May 17, 2010 10:41:25 PM

Hello,
I have been facing a problem with my P4 cpu.I have a P4 3.0E Ghz with 1Mb L2 Cache and 800Mhz FSB with stepping 4 and revision D0.But when I checked using intel processor identification tool and cpu-z it says the cpu is working at 1.99-2.0Ghz and 532-533FSB while it should be running at 3.0/800.The motherboard is a China made motherboard ZX-945-15 with intel 915 chipset and revision B1.It has AMI bios.The board also supports667MHZ dual channel DDR2 ram.But Cpu-z is showing the channel as single.Even the ram works at Dram freq of 200mhz and FSB: DRAM of 2:3.The DDR2 ram I'm using is OCZ Platinum dual channel kit rated at 800Mhz and can be overclocked further.When booting the Bios identifies the cpu properly and 3.0ghz but when testing with the softwares it shows 3.0 ghz working at 2.0ghz.What might be the problem.Thanks

Specs
Cpu- P4 3.0E Ghz 800mb Fsb 1 mb L2 cache stepping 4 rev D0 Socket 478
Motherboard- ZX-945-15
Ram- Ocz platinum rev 2, 2Gb dual channel kit
Powersupply- Corsair Tx650

More about : 0ghz cpu running ghz

May 17, 2010 11:31:40 PM

has your Proc. ever ran @ the advertised speed?
also check your bios settings to see if your ram timings are correct.
and also if using two different sticks of ram make sure they use the same timings.
its best to buy ram in pairs (multiple sicks of the same exact ram at the same time)
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May 17, 2010 11:58:10 PM

does it still run at 2.0ghz at load?

my 3.4 goes to 2.4 when idle
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Anonymous
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May 18, 2010 2:29:31 AM

It did run@the advertised speeds on my intel 865GBF mobo.There are two ram sticks and they came in a dual channel kit package.How do I check the RAM timings and what do I cross reference it with?I dont think this processor has intel speedstep technology.Thanks
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a b à CPUs
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May 18, 2010 3:18:30 AM

Your FSB seems to be down to 533. It should be running at 800. Did you change a setting manually on the BIOS?
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Anonymous
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May 18, 2010 3:55:43 AM

All I did was place the cpu into the socket.Everything was detected by the bios, which till date says p4 3.0 ghz when booted.Havent touched the bios or made any changes in the bios
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a b à CPUs
May 18, 2010 4:18:47 AM

Your motherboard maybe not supporting the 800fsb speed. Plus you have a pentium 4, which sooner or later you are going to build a new computer.
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Anonymous
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May 18, 2010 4:27:07 AM

The manual does say it does support 800FSB and the bios too detects it at 3 ghz.Even the properties tab under My Computer says Intel P4 CPU 3.00Ghz 2.00GhZ

Building a new computer currently is totally out of my reach.So I am trying to make do with what I have.I'd really appreciate if anyone can help me figure out why it isnt using the full cpu potential rather than rub the fact that I need to build a new computer.Are there any settings/changes I need to make in my bios.
Thanks
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a b à CPUs
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May 18, 2010 9:04:21 AM

Try to look for the FSB setting in the BIOS. Try to see if you could make it to 200 from 133.
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a c 160 à CPUs
a c 232 V Motherboard
May 18, 2010 4:49:59 PM

Bottom line, your BIOS is probably the problem. If you aren't comfortable mucking around in the BIOS, reboot the system, and press DEL or F1 or F2 (whichever is appropriate for your motherboard). Look for a selection that indicates setting BIOS to default settings. Selecting this should put the board into a state where it will auto detect the CPU and memory and configure for an optimal state (proper CPU speed and dual channel mem config). There may also be a "high performance default settings" selection as well. You can go with that and you should do no harm as well. Be sure to save your settings when you are finished.

Be advised that some manual settings may cause you to lock the board. If that is the case, you will need to reset the board by "blocking it" via the reset pins located on the motherboard itself. That particular set of pins is usually located very near the battery that in on your motherboard (and helps retain motherboard settings in the BIOS).

Good luck.
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May 21, 2010 12:05:22 PM

The confirmation mail went into my spam folder and so couldn't confirm my account.Hence it says Anonymous.

What should my fsb: dram ratio be?Will update this post once I get the settings done.

Thanks



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a c 160 à CPUs
a c 232 V Motherboard
May 21, 2010 1:27:55 PM

Is this a socket 478 or socket 775 motherboard/cpu? What make and model of motherboard are you using?
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a c 160 à CPUs
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May 21, 2010 4:27:54 PM

I re-read the entire post and found your system info in the original post. Sorry for my brain cramp.

The following website has info regarding the settings you are asking about:
http://en.wikipedia.org/wiki/List_of_Intel_Pentium_4_mi...

Clock multipler should be 15x if I selected the correct CPU version. Good luck!
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May 21, 2010 10:21:43 PM

same issue is driving me crazy.. i have a n68-s mobo with amd phenom ii x4 955 running at 800mhz!!
i have updated my bios but i everytime i try to increase the multiplier thing above x 4 with the voltage above 1.025 i cant boot.. it is really annoying me there are no forum post online that address this issue (sorry if i sound rude). my friend who knows a bit more than me about these things is saying its not cool and quite (btw i have set the power setting to performance) and updating the bios should have done the trick.

any suggestions would be greatly appreciately..

cheers
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May 21, 2010 10:44:24 PM

ARTARD, THE asrock N68-S CAN only take cpus up to 95watts

and if by chance you live in trinidad, i would love 2 get my hands on that board for $200

http://www.asrock.com/mb/cpu.asp?Model=N68-S
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May 22, 2010 6:01:35 AM

It is a socket 478 3.0EGhz chip, the motherboard is a China Mainboard with AMI bios.

Cpu-z says the following:

Core sped : 2000Mhz(fluctuating 2000.0-2000.2Mhz)
Clock multiplier : 15x
Bus speed : 133Mhz
Rated Fsb : 533Mhz (fluctuating 533.0-533.4Mhz)

Dram Freq : 200Mhz
Fsb: Dram : 2: 3
Cas# Latency(CL) : 4.0 clocks
RAS# to CAS# Delay(tRCD) : 4 clocks
RAS# Precharge(tRP) : 4 clocks
Cycle Time(tRAS) : 10 clocks

I have an option to set memory by SPD(current setting), if I disable it I can set the timings manually but there isnt an option to change the Fsb: Dram ratio.Also the max freq of the Dram Freq can be changed from auto(current setting) to 400-533.
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May 22, 2010 3:01:57 PM

when you stress the cpu, is it still 2000, or does it raise to 3000, like encode a video or rip a cd or something
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May 24, 2010 4:15:01 AM

I dont think it rises to 3Ghz.But if i were to check this how should I go about it
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May 24, 2010 4:38:40 AM

Tried using Cpu-z when unraring a 200mb file.The clock speed didnt change.Cant run it with a game cause when I have to switch between the apps.What do you suggest.how do I test it.Also what should my ram timings be.
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a c 133 à CPUs
a b V Motherboard
May 24, 2010 5:07:25 AM

Try using Prime95 torture test see what it does. But no matter what the FSB should be at 800mhz its odd that the bios says its a P4 @3.0 but windows is stuck on 2ghz. Go to Power settings make sure its all set to high performance and the stress the cpu with Prime95.

http://files.extremeoverclocking.com/file.php?f=103
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May 24, 2010 8:55:34 AM

My cpu is pretty old.I dont want to burn it out by stressing it too much.Is this the only Option.Can anyone guide me about my ram timings.Thanks
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a c 133 à CPUs
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May 24, 2010 8:58:03 AM

That test will not kill your CPU just run it for a minute to see if it will jump up to full speed. Normally we run this test for 24 hours 1 minute will not hurt your CPU we just want to see if it will go to full speed.
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May 24, 2010 9:02:22 AM

Any idea about what Ram timings I should Use???
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May 24, 2010 9:50:54 AM

Ran the pre programmed Blend test.Under the options tab under CPU it says P4 3.0Ghz then it says Cpu speed 1999.96Mhz
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a c 133 à CPUs
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May 24, 2010 10:02:05 AM

Then your problem is motherboard be it bios or just a hardware malfunction its the only thing it can be. I didn't read the whole thread so I dont know if this is a fresh install of windows but even that should have no affect on the CPU speed.

Something somewhere is limiting the bus speed to 533mhz just because it can read the info off the CPU to tell it what it is doesn't mean the motherboard supports it. Are you absolutely sure that your motherboard supports that CPU because I remember when the PGA478 P4EE came out only certain motherboards were able to run them.

Other then having the latest bios or get a new motherboard there is absolutely nadda that can be done. My suggestion is deal with it save about $200 and get a cheap AMD system that you can use your DDR2 RAM in and will run circles around that beat up old and tired P4.
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May 24, 2010 10:06:08 AM

It might just be that your motherboard doesn't officially support and couldn't work at 800MHz FSB. You might just probably be lucky that it ran at all, and it seems that it is a dead-end.

(Fixed)
Multiplier * FSB = Clockspeed
15 * 200MHz = 3000MHz << What you want
15 * 133MHz = 2000MHz << What you have

You need to change the FSB, but since you can't do that, it is a dead-end.


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May 24, 2010 10:06:35 AM

This isnt an EE just a normal p4 3.0EGhz processor.The manual does say it supports 800Mhz Fsb.Is there any was I can update the bios.Tried searching for the manufacturer website, but no luck.Other than what you've suggested is there any other option
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May 24, 2010 10:07:49 AM

How and where do I change the FSB???How do you guys do it???
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a c 133 à CPUs
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May 24, 2010 10:19:04 AM

jarpickle said:
This isnt an EE just a normal p4 3.0EGhz processor.The manual does say it supports 800Mhz Fsb.Is there any was I can update the bios.Tried searching for the manufacturer website, but no luck.Other than what you've suggested is there any other option

Intel Pentium 4 3.0E Prescott 3.0GHz 1MB L2 Cache Socket 478 89W Single-Core Processor

This was considered an extreme procssor when it came out the normal P4 for the PGA 478 only usually ha 512KB of L2 cache. Also the 3.0E went to 90nm from 130nm of the original P4 and has Hyper Threading you have to be missing a bios update a jumper something this is total hardware problem most likely bios problem.

In CPU-Z or Task manager is it showing two threads?
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a c 133 à CPUs
a b V Motherboard
May 24, 2010 10:23:16 AM

jarpickle said:
How and where do I change the FSB???How do you guys do it???

You have some china no name motherboard with no other info on it most likely you cant change the FSB on that board. Secondly you need a bios that will have the support for that processor. Third if it did have a setting for it i is somewhere in the bios you have to look thru every menu if its not there guess what you are SOL sorry.

I dont mean to be mean but you are dealing with hardware that is almost 7 years old that is like 100 in human years you will not find the support you need for that board anywhere because of the age of the hardware. You are beating a dead horse and its dead as a door nail sorry.
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May 25, 2010 4:49:37 AM

It does show two threads.Will check the jumper settings and all other stuff thoroughly again.Thanks
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June 5, 2010 11:54:58 AM

Tried changing the jumpers(FSA,FSB,FSC) as indicated on the motherboard for 800Mhz,but instead it has scaled down to 400Mhz.Now my clock is down to 1.5Ghz and theres no way to even take it to 2Ghz.The motherboard supports 667 Mhz ram, so my current ram(800Mhz)is running at slower speeds.Is there anyway that the ram is causing the FSB to come down.I can manually set it to 533 or 400Mhz.I have posted all the finding from Cpu-z above.Please take a look.The current reading is
Core sped : 1500Mhz(fluctuating 1500.0-1500.2Mhz)
Clock multiplier : 15x
Bus speed : 100hz
Rated Fsb : 400Mhz


Dram Freq : 200Mhz
Fsb: Dram : 1:2
Cas# Latency(CL) : 4.0 clocks
RAS# to CAS# Delay(tRCD) : 4 clocks
RAS# Precharge(tRP) : 4 clocks
Cycle Time(tRAS) : 10 clocks

Also My Pcie x16 is running at x4.Are there any settings that may be causing this.There is a jumper near my x16 slot that says lan_en.Its cuurently at disable mode.I have no problems with my lan port right now so is this connected to the Pcie x16 slot and causing it to go slower.

Appreciate all the help everyone.
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July 21, 2010 11:48:40 AM

hi ,

i have the same problem...bought a chinese 945g chipset..my proc is a P4 3 GHZ HT 1mb L2 cache...the problem is tht it shows 1500 mhz in xp and linux..the bios shows 800 mhz fsb..bu still it is performing at 1500 mhz!! when i was going through the motherboard resources i found at their site that there was no reference to prescott processor...northwood and williamette are trully supported...but i doubt a prescott ht...i am going through the same hell....
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