Question about Evga (133-P4-NF51-AX) Motherboard

1 Answer

CPU goes to 100 % usuage with more then 2 gigs memory installed

I have an EVGA nForce 4 motherboard , 133-P4-NF51-AX, Smithfield P4 840 dual core cpu , and 4 gigs of matched Kingston memory. When I install 2 gigs memory , cpu runs normal , but when 3 or 4 gigs are installed it goes to 100% usuage and lags out badly . My operating system is Win XP Pro X64 edition.
I have talked with Kingston support and EVGA support and have gotten nowhere .
Can anyone help with this problem?

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that got 5 achievements.


    An expert who has written 20 answers of more than 400 characters.


    An expert who has answered 20 questions.

  • Contributor
  • 40 Answers

Firstly make sure that your BIOS doesn't have a configuration/setting for larger RAM installed and doesn't have any RAM paging configurations that need setting.
If Kingston tech support couldn't solve this, we can presume that the memory sticks and the motherboard memory addressing is good. To solve this you need to look for an application post-startup that is hijacking your CPU. It's then likely that you have an older application that when it addresses more than 2 gigs gets thrown into an endless loop and hogs your system. The following will identify and help you eliminate that application.
With your 2 gigs installed, do the following.
Click Start>Run and type in "msconfig". This runs the configuration utility that shows your startup programs and services. Select the "Diagnostic Startp" option , then click "Apply" and follow the restart instructions. When your system reboots select "cancel" when asked to restore the settings. This will keep these settings through the next steps. Make sure that your system works well in this diagnostic mode with the 2 Gigs. All those burdensome background running applications that sap your system resources will be eliminated (temporarily) and bare Windows can run unencumbered without being dragged down. Shut down your system.

Install the remaining 2 gigs. Reboot and see if the system still maxes out at 100% (make sure you leave it for a while to give it a chance to settle down).
Try your issue again. If this time it operates as normal without the system being maxxed out, you'll know that at least one of those startup applications is the culprit. Running msconfig again will allow you to restore the Normal Startup, and the Startup tab will allow you to remove selectively that application that is causing the issue.  

One way to identify which one is the culprit is to restart normally (select the Normal Start option in msconfig and reboot) and once back up, do a ctrl-alt-del to bring up the Task Manager. Click the "Processes" tab and then click the heading "Mem Usage". This will sort running processes by how much memory resources they consume.  The memory hogs may not be the one giving you the problem, but it's likely that a heavy memory/resources consumer is also sapping the CPU cycles needed to operate normally. Make a note of the top heavy memory users (print a screenshot) and use this list to eliminate any that are also on the startup list back in msconfig.  

Don't use the "End Process" button in the Task Manager to simply stop them, as you'll likely stop one that is critical to Windows functionality. Msconfig's Startup list just shows the ones that get started at Windows boot up and can be eliminated without crippling Windows - much safer.  

Use your memory hog list to start eliminating, one at a time, the offending applications from the startup list until the issues is resolved. Its a little tedious, but helps clean up your system in the process.  

Hope this helps, and please rate my answer.

Posted on Dec 31, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Evga sr 2 only will go on one processor.what to do.

Download, and install CPU-Z (From, if you have not already.

Open CPU-Z

Now multitask with your computer.........

Open your email.........look at a video on YouTube........stay on here.....

Get several threads going at the same time.

Or play an intensive game.....

Now look at the CPU tab on CPU-Z

See how both Processor cores are now running?

That is for a dual core processor. It's going to take a bunch more for a quad core.

Using a dual core processor for searching the internet, or watching videos; is like using a fuel dragster to run down to the store.

You need multiple threads open, to get the second core to kick in.
Apply to a quad core also.

Post reply in a Comment.


Mar 28, 2013 | EVGA Corporation EVGA Classified SR-2...

4 Answers

Id like to buy a msi nf725gtm-p31 mobo but am unsure if it supports am2 processors and ddr2 can u pls advice thanks

Here are the specs of the motherboard, both answers to your questions are "Yes". Happy purchase and have fun with it !

• Support socket AM2 for AMD® Athlon 64/Athlon 64X2 CPU / AM2+ for AMD® Phenom CPU / AM3 for AMD® Phenom II / Athlon II CPU . (95W only)
Please refer to CPU Support for compatible CPU; the above description is for reference only.
bult_ar_org.gifHyper Transport Bus

• HyperTransport 1.0 supporting speed up to 1000MT/s

NVIDIA® nForce 630a & GeForce 7025 chipset


bult_ar_org.gifMain Memory

• Supports Dual Channel DDR2 667/800
- 2 DDR2 DIMMs (240pin / 1.8V)
- Supports a maximum memory size up to 8GB.



• One PCI Express 1.0 x16 slot.
• One PCI Express 1.0 x1 slot.
• Two PCI slots (support 3.3v/5v PCI bus interface).

bult_ar_org.gifOn-Board IDE

• One IDE port by NVIDIA® nForce 630a & GeForce 7025 chipset
- Supports Ultra DMA 66/100/133 mode
- Supports PIO, Bus Master operation mode
- Can connect up to two IDE devices

bult_ar_org.gifOn-Board SATA

• Two SATA II ports by NVIDIA® nForce 630a & GeForce 7025 chipset
- Supports storage and data transfers at up to 3Gb/s

bult_ar_org.gifRAID Function

- SATA II 1~2 supports RAID 0, 1 mode by NVIDIA® nForce 630a & GeForce 7025 chipset

May 12, 2011 | Computers & Internet

1 Answer

To upgrade to a newer and better CPU processors enabling me to play more quality games Min requirement CPU type and speed Intel 2 duo or equivalent What types and models and specs please. Have at...

You should get a quad core processor, with a minimum of 3 to 4 gigs of ram, and an asus SLI or crossfire Motherboard. This and a nice 1 terrabite drive can be done for under $500.00, unfoutunatelly, thats just the way they make it. I PLAY cod4, and I run a dual core with 2 gigs of ram and a $300.00 asus MB, with twin 7900 video cards in sli. and it just about runs it, the new games are processor and ram intense, let alone video cards. I would suggest a single card if cost is a factor, you can always add a second or even a third card later. But the you don't want to be the slowest guy playing, especially if you like first person multiplayer shooters

Jun 12, 2010 | Compaq Computers & Internet

2 Answers

Can i use 2.8ghz cpu for my p4s533-e?

this is what asus says:

arrow-org.gif Latest P4 CPU Support
The latest P4S533-E motherboard supports Socket 478 Intel® P4 processors, which utilize the most advanced 0.13um process technology to provide frequencies up to 2.53GHz

Mar 23, 2010 | ASUS P4S533-E Motherboard

1 Answer

A friend of mine has the evga 133-p4-nf51-ax motherboard. the computer runs fine and then all of a sudden shuts off. there are 3 capacitore blown on the motherboard. their numbers are c222, c237, c238. i...

The c222, c237, and c238, are motherboard manufacturer identifiers, for Capacitor 222, Capacitor 237, and Capacitor 238.
I don't know either, only the mobo manufacturer does.

BUT, I DO KNOW how you can identify the Microfarads, and voltage for each one of these Electrolytic Capacitors! There are many Electrolytic Capacitor manufacturers for electronic components, but each has their own identifying code. Some are easier than others to read their code.

How to identify Japanese Electrolytic Capacitors,
Page 2 and 3 get more to the direct matter of reading the markings for Japanese Electrolytic Capacitors. Page 4 deals with Chinese and Taiwanese Electrolytic Capacitors.

Also want to include this,
How to Desolder Components;

From me:
1.I advise using a 40 watt pencil tip soldering iron. use the damp sponge frequently also. Keep the tip clean, and tinned. [I use a soldering station now]

2.I grab the capacitor with my fingers, board turned over, and put slight pulling pressure mostly on one lead. Heat one lead, try to pull up just a little, then heat the other lead. Pull up just a little.
Keep going back, and forth pulling the leads out a little at a time. You don't want to keep the soldering tip there too long, or you'll risk burning the board, so don't try taking the 'Cap' out all at once.

Once the 'Cap' is removed, clean the motherboard area. You want a clean circuit trace area, for that rosin solder to adhere to. I use cotton balls, and Isopropyl Alcohol. Try to find the 91%, (Percent), alcohol. (Walmart)

3.You HAVE to match the voltage! You ->can 'fudge' the capacitance a little. (Microfarad)

Example: If you have a 16v, (16 volt), capacitor that is 330μF, you can use a 16v 430μF in it's place. (μF stands for Microfarad)
(Check Radio Shack, and online)

Aug 18, 2009 | Evga (133-P4-NF51-AX) Motherboard

1 Answer

Can I put a dual core processor on my Chaintech S1689 mother board--Athlon 64 FX w/ 939 socket? I don't think my CPU fan is working and I need to replace it.

Form Factor: ATX (305mm x 200mm)
CPU: Supports Socket-939 Athlon 64 / Athlon 64 FX and Dual-Core (X2) / Sempron with the new v6.0 BIOS and above. Processor interface via 2000MT/s HyperTransport bus.
Chipset: ULi M1689
Main Memory: Four 184-pin DDR DIMM up to 4GB Supports Dual Channel DDR266/333/400 memory.
Expansion Slots: X4/X8 AGP Slot and Five 32bit PCI Slots (v2.2 compliant)
Audio: Realtek ALC850 with 8 Channels
SATA: Supports 2 Serial ATA devices for the highest data transfer rates (1.5Gbps burst) with RAID 0 & RAID 1 solution.
UltraDMA IDE Ports: Supports 2 UltraDMA-66/100/133 IDE ports
FDD: One FDD connector supports up to 2.88MB
USB 2.0: Supports total 8 USB2.0 ports with High-Speed Devices at 480 Mb/s Transfer Rates
System monitoring: Two Temperature and Fan Sensors for CPU and System

Jun 01, 2009 | AMD Athlon 64 Socket 939 Chaintech S1689...

2 Answers

Msi p4n sli board

The Only CPU's that board supports are:

  • Supports 90nm LGA775 processor package
  • Supports Intel Pentium Processor Extreme Edition
  • Supports Intel Pentium D Smithfield processors
  • Supports Intel Pentium 4 / Pentium 4 Extreme Edition processors
  • Intel Hyper-Threading Technology ready

  • So sadly no I am sorry. However it does Support a P4 with HT which is still a very nice CPU

    Jan 15, 2009 | MSI P4N Diamond nVIDIA nForce4 SLI LGA775...

    3 Answers

    Does msi motherboard P4M900M3 support this cpu Intel Celeron D CPU 3.20GHZ 512 Socket 775

    MSI has two boards P4M900M3-F, P4M900M3-L.

    Both of this will support your CPU

    Nov 26, 2008 | MSI Computers & Internet

    Not finding what you are looking for?
    Evga (133-P4-NF51-AX) Motherboard Logo

    Related Topics:

    107 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Evga Computers & Internet Experts


    Level 3 Expert

    2600 Answers


    Level 3 Expert

    781 Answers

    Larry Rider
    Larry Rider

    Level 2 Expert

    152 Answers

    Are you an Evga Computer and Internet Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides