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Pentium 3 underclocked to 300(66) mhz
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sirB
Junior Member
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7. June 2004 @ 07:37 |
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I installed WinXP on my com. I have a pentium 3 and it allows me to run WinXP at 300(66) mhz.
I have 2 Rams 2x64mb pc100.
When i change the speed to 450(100) mhz in bios winxp crashes. What could the problem be Plz Help!
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Praetor
Moderator
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7. June 2004 @ 07:50 |
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What was the original clock speed of the processor? Because if it was a the original P3-450 which was the very first P3 to hit the market, while it did have headroom, the PCI speeds were pretty senstive :)
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sirB
Junior Member
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8. June 2004 @ 00:01 |
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The original speed is 450mhz
When i ran win98 the speed was 450 mhz
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Praetor
Moderator
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8. June 2004 @ 05:35 |
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Does WXP crash when you run it at 450?
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sirB
Junior Member
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8. June 2004 @ 06:27 |
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yes it does
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Praetor
Moderator
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8. June 2004 @ 07:02 |
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Sorry I dont know why I asked that question especially since you I already knew the answer ... I guess I meant to ask if W98 also crashed .... but in either case, what is the speed of the memory sticks? (PC66 or PC100 or something else)
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The_OGS
Senior Member
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8. June 2004 @ 07:17 |
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Yikes! the problems that appear, unlooked-for...
So, what is XP's problem? Is it an NT kernel thing, where 98 was undemanding of tolerances in comparison?
My gut says 'hardware compatibility list'. We all forget that when Win2K first appeared there was all kinds of chaos with previously fine hardware. I remember a nice Athlon550 / Asus rig that bluescreened every time, to this day it still runs Win98.
(I have since learned that early ACPI mobo were not W2K compatible until ACPI disabled in BIOS)
If anything can save you it might be in your BIOS; check for latest BIOS, maybe microcode updates and issues have been addressed.
Make sure PnP/OS is OFF
BIOS and Video shadow are OFF
Memory settings conservative or SPD
Update BIOS and load compatibility or fail-safe settings (just to try to get it to 450mHz)
Praetor should he goose his voltages? Maybe lotta hours on the 450 & it's growing cranky...
On SPD maybe memory is timing different at 100 than 66, maybe processor not problem?
sirB we wanna hear that you got 133 FSB going! It's a shame, you should not be strugglin' like this just for 100 FSB
Best of luck, let us know
ABit AB9 Pro
Intel Core 2 Duo E6420 @ 2.4GHz
2GB OCZ PC2-6400 Platinum XTC R2
ATI Radeon X1900XT 512MB
Enermax Liberty 620W
320GB/16MB WD, 150GB/16MB Raptor
Plextor PX-755SA DVD (SATA)
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Praetor
Moderator
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8. June 2004 @ 07:39 |
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Quote:
Make sure PnP/OS is OFF
Well with WXP why would this be the case?
Quote:
Praetor should he goose his voltages? Maybe lotta hours on the 450 & it's growing cranky...
On SPD maybe memory is timing different at 100 than 66, maybe processor not problem?
I never particularly suspected the proc as being the problem but perhaps the memory isnt downclockable? (i know it sounds wierd but ive had a system -- hehe my XP2100 which when I downclocked to 1400Mhz, the memory would crap out on me from time to time ... weird but hey its a computer).
sirB
Would you mind downloading a program, CPUz ( http://www.cpuid.com ) and spec'ing out the processor, RAM and mobo? :)
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sirB
Junior Member
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9. June 2004 @ 01:54 |
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Intel Pentium III 301 mhz
128 MB SDRAM
I checked that out with the handy program
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Praetor
Moderator
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9. June 2004 @ 05:39 |
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Actually I was kinda hoping I could get the following:
CPU
Codename
Voltage
Core Speed
Multiplier
FSB
MAINBOARD
Manufacturer
Model
MEMORY
Modules Information
Frequency
FSB:DRAM
Cheers.
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cozza1987
Suspended due to non-functional email address
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9. June 2004 @ 06:11 |
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#ad_buddies ... come and have a chat
SERVER: /server irc.addictz.net:6667
CHANNEL: /join #ad_buddies
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sirB
Junior Member
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9. June 2004 @ 07:00 |
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ok here it is:
codename : Katmai
voltage : 2.000 v
core speed : 300.7 mhz
Multiplier : x 4.5
Fsb : 66.8 mhz
Mainboard
Manufacturer : http://www.abit.com.tw
Model : i440BX-W83977 (BE6)
Memory
Modules information : Dimm#1 Spectek Incorporated
SDRAM PC125 - 64 MB
Dimm#2 SDRAM PC100 64MB
Frequency : 66.8 mhz
FSB:DRAM : 1:1
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sirB
Junior Member
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9. June 2004 @ 07:02 |
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At specification it says Intel Pentium III 450mhz
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Praetor
Moderator
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9. June 2004 @ 07:20 |
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Cozza
Damn! You ever try bringing those RAM timings down?
Ok as for some background/filler information, here's the low-down on the Katmai450s:
CPU Clock Speed: 450Mhz
FSB SPeed: 100Mhz
Multiplier: 4.5x
Core Voltage: 2.0V
Process: 0.25 micron
Which is pretty much what you've told us so the chip does seem to be correctly acertained.
The reason I asked about the memory speed was because if the memory was PC66 and the FSB:DRAM ratio is 1:1 as I suspected then by running the CPU at 450Mhz (which meant running the FSB at 100) would causae the memory to be OCd by a factor of 50% -- quite a but for them older modules. Your modules are rated upt o PC125 however so I dont suspect that the memory is what is causing the voltage.
Some suggestions
- You might consider upping the voltage to 2.05 or 2.10 and see if WXP will function then
- Check to see that the memory timings are determined by SPD
- If you feel like it, reset the bios to default configurations to defaults or fail-safes and install WXP
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sirB
Junior Member
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9. June 2004 @ 07:27 |
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eejihfdlkshl sorry but what is the cause of this the processor , the RAMs ?
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Praetor
Moderator
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9. June 2004 @ 07:46 |
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Quote:
sorry but what is the cause of this the processor , the RAMs ?
Huh?
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cozza1987
Suspended due to non-functional email address
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9. June 2004 @ 07:50 |
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Quote:
Cozza
Damn! You ever try bringing those RAM timings down?
Nope, havnt touched any settings. I havnt tried OC'ing before.
Regards
CoZZa
#ad_buddies ... come and have a chat
SERVER: /server irc.addictz.net:6667
CHANNEL: /join #ad_buddies
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Praetor
Moderator
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9. June 2004 @ 07:57 |
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I didnt mean OC ... but PC3200 running 2.5-4-4-6 ... sure its good but on an Intel platform you should be able to notch that down a bit without even classifiying it as "overclocking" (there should be a setting in the BIOS for "performance timings" instead of "optimal"
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sirB
Junior Member
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9. June 2004 @ 08:27 |
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I tried upping the voltage and at begin it starts up then after my kaspersky anti-virus has finished loading it crashes.
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sirB
Junior Member
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9. June 2004 @ 08:28 |
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Sometimes when the com is running it restarts suddenly and i get this message
Windows has recovered from a fatal error
C:\Windows\Minidump\Mini060904-01.dmp
C:\Docume~1\Kortstam\Locals~1\Temp\WER1.tmp.dir00\sysdata.xml
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Praetor
Moderator
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9. June 2004 @ 08:44 |
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Is it possible something is messed up with the installation of WXP? Since we are trying to deal with a hardware issue here it might be wise to eliminate the possibilities of software conflicts by dealing with a fresh installtion of WXP
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sirB
Junior Member
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9. June 2004 @ 08:49 |
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I did do a fresh installation of winxp
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sirB
Junior Member
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9. June 2004 @ 08:50 |
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when my com runs at 300(66) the anti-virus starts up and it doesnt crash after the loading
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Praetor
Moderator
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9. June 2004 @ 09:06 |
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Quote:
when my com runs at 300(66) the anti-virus starts up and it doesn't crash after the loading
By fresh installation I was thinking of JUST WXP ... no antivirus, no nothing. Fire up the clean WXP, start with the drivers then the diagnostic utils and then when you are certain stuff works.... then install the host of software
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