Q. about MB/CPU compatibility

Hewlett-packard / A6407c
September 17, 2009 at 02:56:50
Specs: Windows Vista, 4400+Brisbane/3gb
I really want to upgrade to one of those new Athlon II X2 CPU's, but I'm not not sure if my Mobo is compatible with the new AM3 cpu.

Motherboard ID 06/20/2008-MCP61P-NARRA3-00
Motherboard Name Asus M2N68-LA (Narra3)

I'm not good into looking into things like this, but any help would be appreciated.


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September 17, 2009 at 04:35:24
It ain't gonna happen, not with an old HP:


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September 17, 2009 at 04:45:35
alright I had my suspicious that it was probably not possible :(

Would up grading to the 5200+ be wise?

It's only a 400mhz increase from my 4400+, but I'm afraid my 4400+ would bottleneck a 4670.

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September 17, 2009 at 09:51:05
At the link jam pointed to:
Motherboard Specifications, M2N68-LA (Narra)

It says....

"Supports the following processors:
Athlon 64 X2 with Dual Core technology up to 5600+ (up to 89 watt)
Athlon 64 less than 4000+
Sempron less than 4000+ "

However, HP's original info about a mboard is often outdated, and they usually don't update the info.

Further info found.

I looked up the part number for your mboard, for your model A6407c - it's KE568-69001.

I then used the mboard part number - KE568-69001 - to look up the models the mboard is used in, and found a listing for a CTO - Configured To Order - computer model.

CTO models have all the Processors listed HP offered as choices in their parts list.

Go here:

Type, or copy and paste: kc835av
in the left box, click on the >> beside it.

Choose all parts, or select Processor from the list.

The mboard supports:

AMD Athlon64 X2 6000+ processor - 3.0GHz (Windsor, 1MB Level-2 cache, Socket AM2, 89 watt)

AMD Phenom Quad-Core processor 9500 - 2.2GHz (Agena core, 3600MHz HT3 front side bus, 2MB total Level-2 cache, socket AM2+, 95W)

AMD Phenom Quad-Core processor 9600 - 2.3GHz (Agena core, 3600MHz HT3 front side bus, 2MB total Level-2 cache, socket AM2+, 95W)

AMD Athlon 64 X2 5600+ processor - 2.8GHz, 2x1024KB FSB, Socket AM2, 89-watt


- your model - A6407c - has this PS listed:

"Power Supply [Electronic Parts]
5188-2625 Power supply - 300-watt (Merlot C) regulated "

- the CTO model - kc835av - has this PS listed:

"Power Supply [Electronic Parts]
5188-2859 Power supply - 350-watt, regulated (Sirah) "

SO - you may need to replace the PS with one that has a 350 watt capacity or more.

I looked at the HP software downloads list for both the A6407c and kc835av HP computer models.

There are NO bios updates listed for the mboard.
SO, the mboard's present bios version should support all the cpus listed for the kc835av model.

Which specific cpus?

Take a look here:

This is an enhanced model in the same Asus series that supports cpus that consume more than 89 watts, and newer cpus, so ignore most of the entries for those, but otherwise....

It lists cpus that work in specific mboard models, and the specific bios version needed to support them. You can ignore the bios version info in this case - that applies only to the Asus version(s).
At the left side of each cpu listed as known to work is a blue highlighted link. If you click on that link it shows you which specific AMD cpu works.
Find the listings that jive with the Processor listings for the kc835av.

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Related Solutions

September 17, 2009 at 10:16:32
Product Specifications and Configurable Options
HP Pavilion Elite m9100z
Product number: KC835AV

The 350 watt PS the KC835AV
comes with has enough capacity to handle any of the optional video cards listed there.

Apparently your model - A6407c - does not come with a video card - you're using the onboard video built into the mboard (which is NOT A CARD).

If you don't install a video card, you probably don't need to replace your present 300watt PS when you use any of those cpus listed for the KC835AV.


You may need to upgrade your PS in any case if you install a video card.

Your power supply must have at least the minimum capacity required to support a system with the graphics card you are using installed, or the max graphics card you might install in the future.
(Onboard video - video built into the mboard - IS NOT A CARD!)
You can go to the video card maker's web site and look up the specs for the model - often under system requirements - the minimum PS wattage, and, more important, the minimum amperage the PS must supply at 12v is stated. If you don't find that, any card with the same video chipset including any letters after the model number has very similar minimum PS requirements.
Some power supplies have more than one +12v amperage rating - in that case you add the rated max amperages to determine the total +12v amperage rating.

A video card that requires more PS capacity than you system has often works for a while anyway, but the PS is overloaded 100% of the time and is eventually damaged and fails.

If you need to get a PS with more capacity, you can usually replace it with any decent standard sized standard ATX PS.

Standard (PS/2) power supply size - 86mm high, 150mm wide, 140mm deep, or 3 3/8" h x 5 7/8" w x 5 1/2" d , or very close to that, though the depth can be more or less for some PSs.

Don't buy an el-cheapo PS.
See response 3 in this:

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