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-   -   p4 results deviating? (https://www.mersenneforum.org/showthread.php?t=187)

Deviator 2002-10-28 12:42

p4 results deviating?
 
I wonder if these results deviate much from anyone with a similar computer. I have a gf3 tí200 as if that would help :devil:
--------
Intel(R) Pentium(R) 4 CPU 1.80GHz
CPU speed: 1793.26 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 256 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
TLBS: 64
Memory Type - says 512 Mb DDR-SDRAM
OS: Win XP
Prime95 version 22.10, RdtscTiming=1
Best time for 256K FFT length: 14.420 ms.
Best time for 320K FFT length: 19.156 ms.
Best time for 384K FFT length: 23.296 ms.
Best time for 448K FFT length: 27.913 ms.
Best time for 512K FFT length: 31.490 ms.
Best time for 640K FFT length: 41.230 ms.
Best time for 768K FFT length: 50.375 ms.
Best time for 896K FFT length: 62.219 ms.
Best time for 1024K FFT length: 67.682 ms.
Best time for 1280K FFT length: 96.337 ms.
Best time for 1536K FFT length: 118.860 ms.
Best time for 1792K FFT length: 154.292 ms.

Prime95 2002-10-28 15:01

The data sent to me:

Intel(R) Pentium(R) 4 CPU 1.80GHz
CPU speed: 1808.40 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
TLBS: 64
Prime95 version 22.1, RdtscTiming=1
Best time for 256K FFT length: 13.286 ms.
Best time for 320K FFT length: 17.582 ms.
Best time for 384K FFT length: 21.363 ms.
Best time for 448K FFT length: 25.617 ms.
Best time for 512K FFT length: 29.226 ms.
Best time for 640K FFT length: 37.200 ms.
Best time for 768K FFT length: 45.332 ms.
Best time for 896K FFT length: 56.323 ms.
Best time for 1024K FFT length: 60.209 ms.
Best time for 1280K FFT length: 85.506 ms.
Best time for 1536K FFT length: 107.394 ms.
Best time for 1792K FFT length: 130.693 ms.

I received my 1.8 GHz P4 today. I've seen you just posted
the benchmarks for this. On my machine they are slighly better.
CPU: Pentium 4, 1.8 GHz
Motherboard Intel D850MV
Windows 2000 version 5.0 service pack 2 build 2195
256 MB PC800 RIMM memory
Best time for 256K FFT length: 13.673 ms.
Best time for 320K FFT length: 18.304 ms.
Best time for 384K FFT length: 22.177 ms.
Best time for 448K FFT length: 26.787 ms.
Best time for 512K FFT length: 29.868 ms.
Best time for 640K FFT length: 39.402 ms. (better)
Best time for 768K FFT length: 47.623 ms.
Best time for 892K FFT length: 59.132 ms. (better)
Best time for 1024K FFT length: 63.862 ms.
Best time for 1280K FFT length: 91.426 ms.
Best time for 1536K FFT length: 113.339 ms. (better)
Best time for 1792K FFT length: 144.488 ms.

Pentium 4
1800 MHz
L2 Cache 258 KB
400 MHz Bus
PC800 512 MB
Windows 2000 Professional
Best time for 256K FFT length: 13.797 ms.
Best time for 320K FFT length: 18.320 ms.
Best time for 384K FFT length: 22.299 ms.
Best time for 448K FFT length: 26.810 ms.
Best time for 512K FFT length: 29.878 ms.
Best time for 640K FFT length: 39.627 ms.
Best time for 768K FFT length: 48.243 ms.
Best time for 892K FFT length: 59.834 ms.
Best time for 1024K FFT length: 64.162 ms.
Best time for 1280K FFT length: 91.337 ms.
Best time for 1536K FFT length: 114.799 ms.
Best time for 1792K FFT length: 144.006 ms.

CPU type: P4
CPU Speed: 1800 MHz
L2 cache size: 256 KB
L2 cache speed: 1x
Memory Type /
Bus Speed: 133 MHz SDRAM CL = 2
OS: Windows XP
Notes: Prime95 Version 21.4.1 Benchmark
Best time for 256K FFT length: 16.723 ms.
Best time for 320K FFT length: 21.000 ms.
Best time for 384K FFT length: 25.271 ms.
Best time for 448K FFT length: 30.365 ms.
Best time for 512K FFT length: 33.842 ms.
Best time for 640K FFT length: 44.201 ms.
Best time for 768K FFT length: 53.807 ms.
Best time for 892K FFT length: 65.921 ms.
Best time for 1024K FFT length: 71.361 ms.
Best time for 1280K FFT length: 101.113 ms.
Best time for 1536K FFT length: 126.192 ms.
Best time for 1792K FFT length: 170.801 ms.

CPU type: P4
CPU Speed: 1800
L2 cache size: 256 KB
L2 cache speed: Full
Memory Type / Bus Speed: PC2100 DDR
OS: Windows 2000
Notes: I clocked the memory at CAS 2, as this proved stable through
a day of torture testing and gave a few percent better performance.
The results are the average of three benchmark passes; that
was the limit of my cut-and-paste patience.
Best time for 256K FFT length: 13.683 ms.
Best time for 320K FFT length: 18.181 ms.
Best time for 384K FFT length: 22.076 ms.
Best time for 448K FFT length: 26.407 ms.
Best time for 512K FFT length: 29.533 ms.
Best time for 640K FFT length: 39.148 ms.
Best time for 768K FFT length: 47.288 ms.
Best time for 892K FFT length: 58.916 ms.
Best time for 1024K FFT length: 63.456 ms.
Best time for 1280K FFT length: 89.980 ms.
Best time for 1536K FFT length: 114.661 ms.
Best time for 1792K FFT length: 143.259 ms.

CPU Type: P4
CPU Speed: 1800MHz
L2 cache size and speed: 512K @ full speed
Memory type: 166MHz DDR (DDR333 or PC2700)
OS: Windows 2000 Pro SP2.
Notes: My SiS650-based motherboard does not officially support PC2700/DDR333
memory but it seemingly works without any errors thus far on the
benchmarks/torture tests I've tried on it.
Best time for 256K FFT length: 12.887 ms.
Best time for 320K FFT length: 17.014 ms.
Best time for 384K FFT length: 20.544 ms.
Best time for 448K FFT length: 24.645 ms.
Best time for 512K FFT length: 27.657 ms.
Best time for 640K FFT length: 36.157 ms.
Best time for 768K FFT length: 43.869 ms.
Best time for 892K FFT length: 53.760 ms.
Best time for 1024K FFT length: 58.425 ms.
Best time for 1280K FFT length: 82.826 ms.
Best time for 1536K FFT length: 104.836 ms.
Best time for 1792K FFT length: 128.301 ms.

P4
1.8GHz
512
PC800
Windows2000 Server
Best time for 256K FFT length: 13.664 ms.
Best time for 320K FFT length: 18.334 ms.
Best time for 384K FFT length: 22.221 ms.
Best time for 448K FFT length: 26.804 ms.
Best time for 512K FFT length: 29.974 ms.
Best time for 640K FFT length: 39.451 ms.
Best time for 768K FFT length: 47.823 ms.
Best time for 892K FFT length: 59.884 ms.
Best time for 1024K FFT length: 64.147 ms.
Best time for 1280K FFT length: 91.876 ms.
Best time for 1536K FFT length: 114.508 ms.
Best time for 1792K FFT length: 147.456 ms.

Intel(R) Pentium(R) 4 CPU 1.80GHz
CPU speed: 1816.40 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 256 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
TLBS: 64
Prime95 version 22.10, RdtscTiming=1
Best time for 256K FFT length: 18.513 ms.
Best time for 320K FFT length: 23.642 ms.
Best time for 384K FFT length: 28.325 ms.
Best time for 448K FFT length: 33.881 ms.
Best time for 512K FFT length: 37.519 ms.
Best time for 640K FFT length: 48.496 ms.
Best time for 768K FFT length: 60.889 ms.
Best time for 896K FFT length: 75.616 ms.
Best time for 1024K FFT length: 84.280 ms.
Best time for 1280K FFT length: 113.373 ms.
Best time for 1536K FFT length: 134.920 ms.
Best time for 1792K FFT length: 175.414 ms.

outlnder 2002-10-28 18:57

How you set up the memory timings in the bios makes a [b]big[/b] difference.

Try tweaking your memory settings [b]one change at a time[/b].

Allow each change to crunch for an hour or two. If no errors appear, make another improvement.

After awhile, you get addicted on making your machines faster, so be careful. :D

Deviator 2002-10-28 21:14

Uhm,

How do I change the BIOS settings? Will it speed up more than prime95 (say, games? :)
I know how to enter the bios, but with a HP Pavillion 770, ther's not always many options (users tend to mess things up)

I would like a nonbrand computer instead, but such is life.

Also, how do I check what RAM I have?
It only says 512mb DRAM-SDRAM, but nothing more. Is it pc800, pc 166, pc 133 ???

Also, my L2 cache is 256kb, and others have 512kb. I know celeron got less than that.

QuintLeo 2002-10-28 21:37

You appear to have a Wilimette (?) core P-IV 1.8, not the more recent Northwood 1.8A core - the Celeron 1.8 is a Wilimette with 128k Level2 cache to your 256k to the Northwood's 512k.

Most probably, your DDR is what Prime would classify as 100 DDR (actually DDR 200 or PC1600), as that is what is commonly used with the 400 Mhz Front Side Bus of the older P-IV 1.8 - you might have PC2100 in the machine, though, but it's probably being run at PC1600 speeds with that CPU.


Your timings seems reasonable to even good, if I'm correct on my guesses.

Deviator 2002-10-28 23:13

Well, the system was pretty brand new when I got the computer (or at least when I ordered it :)

I do not expect much from brandcompuyters like HP, Dell, and the worst of them all, Compaq (aarhgh!)

They are not very modifiable (not that I know how to do it anyway) and upgrading is expensive. It is better now than it was before though.

Thanks for the Northwood thingy. My other nonbrand p2 400 is a northwood, while my older HP 400 Brio surely is not.

outlnder 2002-10-28 23:31

I hate to say it, but it looks like you do not have DDR ram. From you benchmark results and the era of you comp, I would say you have SDRAM PC 100 or possibly PC 133. Even PC1600 DDR would be a bit faster than what you've posted.

Since this is a prefab machine, it is doing quite well.

Deviator 2002-10-29 09:23

The grey sticker I got with the computer (lame) says I got 512 Mb DDR-SDRAM.

I was looking for a benchmark program (like Sisoft Sandra) and came up with this, 14 day trial, and I got most info I wanted.
[url]www.hwinfo.com[/url]

2*256 MB PC2100 DDR-SDRAM 133MHz (PC2100) 4th Week 2002

That is pretty early RAM, as I said.

So, did this come as a surprise? I mean, is that RAM good?

With this info, are my timing results worse?

outlnder 2002-10-29 18:22

Again, I am sorry, but I do not see any DDR Ram in that link.

First you have a 440 BX/ZX motherboard. These do not support DDR Ram.

Second, in Memory, Row 4 says 128 MB PC 100 SDRAM and Row 5 says 128 MB PC 100 SDRAM. SDRAM is not DDR.

Third, this system is just too old to have DDR Ram.

By the way, your processor is a Pentium 3 Katmai.

Deviator 2002-10-29 22:54

Doh!

That picture is not of my computer, dang :)

Heh,

QuintLeo 2002-10-31 02:12

The "Northwood" core series is the current production Pentium-IV series - there never was a P-II northwood, or for that matter a Northwood core that was designed for anything other than Socket 478 (possible Xenon exception, but I think those use their own core series').


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