p4C 3.0GHZ running at 1500GHZ why?

egandt

Member
May 8, 2000
52
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I have a P4C 3.0GHZ chip, which I have set to run witha front end bus of 228 thus running at 3.42GHZ, this is completely stable and have tested everything I could throw againist it with out issue, (note my memory is set to cas2-2-2-5 and is force to 333 so it is really running 380MHZ), well here is teh problem in BIOS the CPU is set to 3.42GHZ or 3.0GHZ in windows it is running at 1.72GHZ or 1.5GHZ, strage yes. I ran sandra and it also says that the CPu is a 1.72GHZ chip and performs much like a 2.0GHZ P4. What is intresting is that sandra show the frontend bus as being 115MHZx4 instead of 230MHZx4 which is what it is suppose to be, I'm most upset with windows currently, as it seems to be windows related. I have included the data from sandra when running at 3.42GHZ for both the CPU and MEM tests. I'm hoping someone has a solution as I really do not want to have to reinstall windows. has anyone ever seen this behavor before?



SiSoftware Sandra

Test Status
Parallel Test Execution : No
SMP Test : No
Total Test Threads : 2
SMT Test : Yes
Number of Test SMT (per CPU) : 2
Dynamic MP/MT Load Balance : No
Processor Affinity : No
Number of Runs : 64000 / 640

Processor
Model : Intel(R) Pentium(R) 4 CPU 3.00GHz
Speed : 1.72GHz
Performance Rating : PR2285 (estimated)
Type : Standard
L2 On-board Cache : 512kB ECC Synchronous ATC
Front Side Bus Speed : 4x 115MHz (460MHz data rate)

Features
SSE2 Technology : Yes
SSE3 Technology : No
HTT - Hyper-Threading Technology : Yes



SiSoftware Sandra

Int Buff iSSE2 (Integer STREAM) Results Breakdown
Assignment : 1971MB/s
Scaling : 1956MB/s
Addition : 1960MB/s
Triad : 1952MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes

Float Buff iSSE2 (Float STREAM) Results Breakdown
Assignment : 1951MB/s
Scaling : 1971MB/s
Addition : 1921MB/s
Triad : 1959MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes

Test Status
Memory Used by Test : 512MB
SMP Test : No
Total Test Threads : 1
SMT Test : Yes
Number of Test SMT (per CPU) : 2
Dynamic MP/MT Load Balance : No
Processor Affinity : No

Chipset
Model : Micro-Star International Co Ltd (MSI) Unknown (2578)
Front Side Bus Speed : 4x 114MHz (456MHz data rate)
Maximum Bus Bandwidth : 3648MB/s (estimated)

Features
MMX Technology : Yes
SSE Technology : Yes
SSE2 Technology : Yes
SSE3 Technology : No
HTT - Hyper-Threading Technology : Yes

A very confused person,
Eric Gandt
 

egandt

Member
May 8, 2000
52
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Wanted to add some more information on the problem.

System:
CPU: P4C 3.00GHZ running at 228Front end BUS so 3.42GHZ with memory locked at 333 so running at 380MHZ CAS2
MEM: 2 Mushkin 512MEG cas2 PC3500 simms
MB: MSI neo875p, BIOS 1.70
HD: 18gig 15K SCSI160
Audio: SB Audigy2
Video: Radeon 9800PRO

Using the MSI core center utility it shows the front end bus as 228 and the CPU speed at 3.42, yet quake3 shows it the same as sandra at 1.72 and so does windows system information.

ERIC
 

touchmyichi

Golden Member
May 26, 2002
1,774
0
76
maybe you have your fsb at 100 instead of 200? Go check your bios and set it to right speeds.
 

egandt

Member
May 8, 2000
52
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0
At boot up the speeds is shown to be what it should be, it is only in windows that the speed switches down. If I boot a linux boot disk everything is ok speed wise during the boot cycle.

ERIC
 

jamesbond007

Diamond Member
Dec 21, 2000
5,280
0
71
Is it possible the information is not being interpretated correctly when going from the BIOS to the Windows program you're using to measure the speed?

Also, your CPU temps are ok, right? No speed-throttling taking place?
 

Evdawg

Senior member
Aug 23, 2003
979
0
0
maybe someone already mentioned this and i didnt see it.. but make sure its not the softwarE? dl new proggies or right click on my pc, properties... should see what its clocked at. Maybe your bios is bad, or the battery, its not saving the info
 

DivideBYZero

Lifer
May 18, 2001
24,117
2
0
What are your temps?

P4's throttle the processor speed back when the heat rises too much. This could be the issue.
 

egandt

Member
May 8, 2000
52
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0
CPU temp is 64c, system temp is 42c which where it has always been. It just seems plan wierd that the bus is being split in half since a throught that throttling changed the multiplier?

ERIC
 

glugglug

Diamond Member
Jun 9, 2002
5,340
1
81
PIII and P4s have a feature called "SpeedStep" which prevents the CPU from overheating. When it gets above a certain temperature the CPU runs on a 50% duty cycle until it cools down. It alternates between running and pausing when this is active once every 2 microseconds.

The bandwidth is half because the CPU is actually only running 50% of the time.
 

DivideBYZero

Lifer
May 18, 2001
24,117
2
0
Originally posted by: egandt
CPU temp is 64c, system temp is 42c which where it has always been. It just seems plan wierd that the bus is being split in half since a throught that throttling changed the multiplier?

ERIC

Your temps are insane. Get better cooling.
 

bjc112

Lifer
Dec 23, 2000
11,460
0
76
Originally posted by: egandt
CPU temp is 64c, system temp is 42c which where it has always been. It just seems plan wierd that the bus is being split in half since a throught that throttling changed the multiplier?

ERIC

Ya, def. too hot for a P4, under full load you are probably pushing 70C, It's clocking down by then...

Are you using the stock HSF?

Thermal Pad? Take that off, and i hope you removed the black covering and foil-metal type thing...

Reseat and use some Artic Silver.
 

Duvie

Elite Member
Feb 5, 2001
16,215
0
71
Originally posted by: bjc112
Originally posted by: egandt
CPU temp is 64c, system temp is 42c which where it has always been. It just seems plan wierd that the bus is being split in half since a throught that throttling changed the multiplier?

ERIC

Ya, def. too hot for a P4, under full load you are probably pushing 70C, It's clocking down by then...

Are you using the stock HSF?

Thermal Pad? Take that off, and i hope you removed the black covering and foil-metal type thing...

Reseat and use some Artic Silver.


definitely!!! 64c at idle is insane....I don't hit much over 50c running prime or FH with a 2.4@3.24ghz with 1.6v of vcore.....

Update Bios of board as well unless it is related to some quirk with the board....
 

egandt

Member
May 8, 2000
52
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0
64c is under 100% load for about 4 hours, as I've been stressing the hell out of it lately, at boot I'm running about 54c. Thats with a stock cooler and Artic Silver III. As for the case it has no less than 5 fan cooling it and is actually less that the 44 being reported by the MB, as my other sensor show it at about 89F. Still heat is not the driving problem as the speed drops from the moment that windows boots (cold or not), yet not if I boot Linux.
 

bummpr

Junior Member
Apr 25, 2003
8
0
0
I ran into similar problems with my first build with this CPU. I found my fan/heatsink was not making contact with the CPU.

Pull the fan and CPU and redo everything.
 

MDE

Lifer
Jul 17, 2003
13,199
1
81
AMD chips can take more heat than P4s. I'm now escorting you back to AMD land.
 

Looney

Lifer
Jun 13, 2000
21,938
5
0
Originally posted by: Overkiller
64 C is insane? hmm

that's what my 1.2 ghz tbred has been running at for about 2 years :p

lol

That's because it's an AMD chip... P4 definitely shouldn't be running that hot.
 

egandt

Member
May 8, 2000
52
0
0
Pulled the fan, added so material so that I am forcing the Heatsink onto the CPU and it has helped about 5 degrees C so that I'm running at 60c, still I know thats hot, but I'm seeing alot of good options for cooling a P4 out there other than teh the heatsink that came with it., but the heat issue is not the core problem which is the spees of the bus droping in half, any ideas on that?

Thanks,
Eric
 

DivideBYZero

Lifer
May 18, 2001
24,117
2
0
Originally posted by: Overkiller
64 C is insane? hmm

that's what my 1.2 ghz tbred has been running at for about 2 years :p

lol

If it is still running at 1.2Ghz, then that too is insane.
 

DivideBYZero

Lifer
May 18, 2001
24,117
2
0
Originally posted by: egandt
Pulled the fan, added so material so that I am forcing the Heatsink onto the CPU and it has helped about 5 degrees C so that I'm running at 60c, still I know thats hot, but I'm seeing alot of good options for cooling a P4 out there other than teh the heatsink that came with it., but the heat issue is not the core problem which is the spees of the bus droping in half, any ideas on that?

Thanks,
Eric

I bet it is. AFAIK throttling begins at 60c on the P4.