Solved

CPU is running at half speed!!

Posted on 2004-08-11
6
390 Views
Last Modified: 2013-12-09
I recently built a pc for someone, but at the time i did not have the cpu for that machine, so i set it up using my P4 3 Ghz FSB800 512k, and it worked fine. Anyway, i then recieved the P4 2.4Ghz FSB800 512k chip for that machine and have installed it. However, i noticed that in CPUz and SiSandra that the core speed is 1.2 Ghz mot 2.4, also the 512Mb PC3200 RAM is also showing massive under performance and the core voltage is 1.47 not the 1.55 i expected.
The mobo is a VIA PVT800 X-L . Is this a Bios problem auto detecting incorrectly, although even when manually put the clock speed in the bios it still shows half the expected speed! Could it have been due to the fact that i installed windows with another chip and now its ballsed up big time?

HELP!!!!!!!!  this is urgent so im bunging all my points at this one!
0
Comment
Question by:jonnyhippo
6 Comments
 
LVL 69

Expert Comment

by:Callandor
ID: 11772603
Since the P2 2.4 has an 800FSB (really 200, as far as the motherboard is concerned), I strongly suspect the FSB is being set to 100, giving you half the speed it is rated for.  This is usually caused by the BIOS not recognizing the cpu and running at a default value.

Reset the BIOS with the jumper, if it has one, or remove the CMOS battery for half an hour.  If that doesn't work, see if the motherboard lets you set the FSB manually to 200.  Otherwise, you will have to hope that a BIOS update is available.  If the board worked with your P4 3.0 800FSB cpu, I think it should handle the P4 2.4 800FSB, so a reset should fix it.
0
 
LVL 69

Expert Comment

by:Callandor
ID: 11772612
Oops - P2 2.4 => P4 2.4
0
 

Author Comment

by:jonnyhippo
ID: 11774722
Hi Callandor, nice of you to help me out again. Your right, it wont let me set the FSB manually to 200. I will try your suggestions and get back to you!!
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 16

Accepted Solution

by:
JohnBPrice earned 500 total points
ID: 11777025
Also check if your mother board has a safe mode jumper, I've seen boards come jumpered for safe mode that forced the FSB to 100.
0
 
LVL 10

Expert Comment

by:Dynamic1
ID: 11780725
jonny on Intel boards you have to set the memory to manual. Set memory to 200 and you should be good to go as all P4 2.4s 800FSB and up are multiplier locked. While you at it looks like mobo is undervolting bump it up to 1.55 or a little better if you have good cooling.
0
 

Author Comment

by:jonnyhippo
ID: 11789035
Many thanks to all that helped me, it was the jumper on the mobo set to 100 instead of 200, you three all helped in some way, i wish i could give you all the points!!!!!
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Memory (not to be confused with Hard Drive Space) can greatly increase the performance of a computer. Each version of Window has greater demands on memory. My personal recommendation to get decent performance out of a machine is as follows: Windows…
In the modern office, employees tend to move around the workplace a lot more freely. Conferences, collaborative groups, flexible seating and working from home require a new level of mobility. Technology has not only changed the behavior and the expe…
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question