Different cpu in pavilion

**SgtDriggs** · October 13th, 2005, 12:32 PM

I currently have a pavilion a317x with a 2.5 ghz celly. http://h10025.www1.hp.com/ewfrf/wc/g...cname=bph07813
If I put a 2.4 ghz p4 northwood socket 478 in this mobo will it work or will my system now reckognize it and give me some errors? It probably isnt that simple but I learn as I go so let me know........Thanks

**SoloCamo** · October 13th, 2005, 12:50 PM

It should work fine, though you might want to download the newest bios for your mobo if you don't have it already.

**SgtDriggs** · October 13th, 2005, 01:00 PM

Originally Posted by SoloCamo

It should work fine, though you might want to download the newest bios for your mobo if you don't have it already.

Thanks Solo. I guess if it is a socket 478 it should fit. I wonder how high I could go in ghz. Im about to build a different system and eveything seems pretty basic. I know there are limitations with Dell HP Emachines etc. I wanted to put a new (or better) cpu in this old machine for awhile but didnt know it would be so simple. I thought that the mobo wouldnt reckognize the cpu and problems would arise w/ the O.S also.

**SoloCamo** · October 13th, 2005, 01:14 PM

3.4ghz is the highest you can go with socket478, but that does not mean it will support it.

what model is your motherboard?

**SgtDriggs** · October 13th, 2005, 01:24 PM

http://h10025.www1.hp.com/ewfrf/wc/g...cname=bph07813

Still the same stock mobo

**erhan28** · October 13th, 2005, 01:49 PM

just because the socket is the same and the core is also doesnt mean it will work, keep that in mind.
I know dells have there upgradeable cpus on the ducuments, you got to find it or else your guessing, You cant hurt your mobo with a cpu, but can damage the cpu if wrong type.

**JLK03F150** · October 13th, 2005, 06:40 PM

From looking at the HP mobo description, it only supports 400mhz FSB processors - Northwood and Willamette cores. It wouldn't be worth the expense to upgrade without going to a higher FSB, but there are 2.4, 2.5, 2.6 & 2.8 versions of the P4 Northwood with 400mhz FSB.

**SoloCamo** · October 13th, 2005, 07:46 PM

They made 2.8's with a 400fsb? Didn't they stop with the 2.2's on northwoods?

The rest I beleive are 533mhz fsb as i used to own a 2.5

**asma123** · October 13th, 2005, 07:54 PM

why dont you get a new mobo. maybe go amd

**SoloCamo** · October 13th, 2005, 08:00 PM

Originally Posted by asma123

why dont you get a new mobo. maybe go amd

b/c not everyone has the money to upgrade every few monthes...

**JLK03F150** · October 13th, 2005, 08:15 PM

Originally Posted by SoloCamo

They made 2.8's with a 400fsb? Didn't they stop with the 2.2's on northwoods?

The rest I beleive are 533mhz fsb as i used to own a 2.5

Yup, they made up to 2.8 w/ 400mhz fsb. I have a 2.6 400mhz fsb in my old Dell. I'm using the PowerLeap 423 to 478 socket adapter with it. It replaced the original 1.5ghz willy.

**SgtDriggs** · October 14th, 2005, 08:21 AM

Thanks for the advise guys. Im thinking about looking into the 2.8. I probably wont notice a big difference but some none the less.

**SgtDriggs** · October 14th, 2005, 08:23 AM

Originally Posted by asma123

why dont you get a new mobo. maybe go amd

Im about to build another machine but this hp is still working fine and Im just trying to max it. Ill have one for gaming and one for normal bs

**SgtDriggs** · October 14th, 2005, 10:30 AM

So what would happen if I get a cpu with a different fsb? Just Curious. Oh yeah, I looked around and cant find a P4 socket 478 2.6, 2.8 with a 400 mhz fsb. I looked at newegg tigerd and ebay. Any suggestions

**JLK03F150** · October 14th, 2005, 01:36 PM

I found a 2.8 400fsb but it's $219.00 !!!!!!!!!!!!!!!!!

It's a bare cpu too - no heatsink/fan & only a 30 day warranty. Not worth it IMO.
http://www.powerleap.com/Processors.jsp

Maybe you could check e-bay?

If you put a 533fsb northwood cpu into a 400fsb mobo I think it will work, it will just underclock the processor. Not only would a prescott probably not boot, it may damage the mobo or cpu.

**SgtDriggs** · October 17th, 2005, 10:08 AM

Originally Posted by JLK03F150

I found a 2.8 400fsb but it's $219.00 !!!!!!!!!!!!!!!!!

It's a bare cpu too - no heatsink/fan & only a 30 day warranty. Not worth it IMO.
http://www.powerleap.com/Processors.jsp

Maybe you could check e-bay?

If you put a 533fsb northwood cpu into a 400fsb mobo I think it will work, it will just underclock the processor. Not only would a prescott probably not boot, it may damage the mobo or cpu.

OMG!!! Forget that. I should just try the 533fsb northwood

**stroyal** · October 17th, 2005, 10:20 AM

What happened to the 3.0? with a 400mhz FSB. They used to be the fastest Northwood with a 400mhz buss, but I haven't seen one in years.
Did they just run out of them, or was something wrong with them?

Edit: I'm loosing my mind. I guess there is no such thing.
I must be thinking of the 533 fsb 3.06, they are hard to find.

**JLK03F150** · October 17th, 2005, 12:21 PM

Originally Posted by SgtDriggs

OMG!!! Forget that. I should just try the 533fsb northwood

You realise if you find a 2.8ghz 533fsb northwood, if it runs it will run at 2.1ghz. The 3.06ghz 533fsb will only run at 2.3ghz. There is a chance the mobo will support a 533fsb cpu at the correct speed, but I would try to borrow a cpu to try before buying one.

**JLK03F150** · October 17th, 2005, 11:53 PM

I did a little looking around at Intel's website and found out the 845GL chipset only supports 400FSB cpu's. There are several other 845 chipsets that support 533 and 400.

http://www.intel.com/products/chipsets/845gl/index.htm

**SgtDriggs** · October 18th, 2005, 07:57 AM

Originally Posted by JLK03F150

I did a little looking around at Intel's website and found out the 845GL chipset only supports 400FSB cpu's. There are several other 845 chipsets that support 533 and 400.

http://www.intel.com/products/chipsets/845gl/index.htm

Thanks for the heads up. I found a 2.4 ghz northwood 400 fsb and concidering a purchase. The wierd thing is that my computer that has the 2.5ghz celeron, radeon 9200se (PCI slot I must add), 1gig, plays HL2, Doom3, FarCry and UT2004 just fine on medium settings. I just thought that if I put a p4 in that computer it will run faster until I build another system. I only play multiplayer and can still hang score wise with the big systems. Im debating on building a better gaming system or just getting an xbox 360.