Sign in with
Sign up | Sign in
Your question

P4 chip with 2mb cache compatible in Mainboard with 1mb?

Last response: in Motherboards
Share
June 19, 2007 11:13:58 AM

Hi All,

have a question about older hardware.

The mainboard is from an HP xw4200 workstation and I need to replace the CPU. Original CPU is P4 with 1mb cache.

The stores locally only sell P4 chips with 2mb cache. Voltage and Socket type are the same as original.

Will the newer P4 chip with 2mb cache work in the older mainboard? any problems from this?

Thanks,
Harold
June 19, 2007 1:16:35 PM

Better Check what is the chipset of the mainboard guys! Older chipsets like mine Intel 915/925 does not support Cedar Mill chips example: Pentium 4 631(3.0GHz 2Mb), 641 (3.2GHz), etc.
June 19, 2007 1:21:51 PM

No worries there mate.The size of the L2 cache does not determine MoBo selection so much as the socket itself and the supporting chipset.I once ran a 3500+single core cpu with a 1mb L2 cache.I then repleaced it with a X2 4400+dual core cpu with 2x1mb of L2 cache.So ya dude,go for broke.Goodluck.

Dahak

AMD X2 5600+ @ 2.8ghz(stock)
M2N32-SLI DELUXE MB
2 GIGS DDR2 800 RAM
THERMALTAKE 850WATT PSU
7950GT KO(WAITING FOR MY OTHER TO COME BACK FROM RMA)
ACER 22IN. LCD
SMILIDON RAIDMAX GAMING CASE
80GIG/250gig SATA2 HD's
XP MCE
Related resources
June 20, 2007 8:31:57 AM

Thanks for the help. But one more question.

The pentium chips available at the local stores are models 631, 641, 651

These all appear to be Cedar Mills Cores.

I've looked for a confirmation about compatibility with the Intel 925x but haven't found anything definitive.

From previous posts, these models of P4 will not be compatible because of the chipset?
Would it only be lacking some functionality? or do not attempt to install one of these chips?

Thanks,
Harold
June 20, 2007 9:51:30 AM

http://processorfinder.intel.com/Details.aspx?ProcFam=0...
Intel® Pentium® 4 Processor 631
1.2V - 1.33V
PCG=05A

Please note the voltage range

Intel® Pentium® 4 Processor 630
1.287V-1.400V
PCG=04A

As what I have understood your mainboard must support PCG = 05A
«Platform Compatibility Guide» label there is the marking «05Ð?» which is just the factor of platform support. In the motherboard's specification, this factor is normally shown in the "Supported processors"

Intel is really crazy not posting differences between the 2 if Intel 925X supports it. I usually check asus.com for similar chipset and processor support.

Better check with HP, maybe they have bios update on your workstation to support the processor

http://support.asus.com/cpusupport/cpusupport.aspx?SLan...
June 21, 2007 5:15:19 AM

I ended up buying online from some place in the U.S., found a P4 521 chip which looks like original spec for the CPU.

all the CPU's available locally were Cedar Mills core and I didn't want to take a risk of buying the CPU. Terrible/non-existant return policies from most stores locally.

Thanks,
Harold
!