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Asus P4P800SE Question

post #1 of 7
Thread Starter 
I've got my eye on a P4P800SE Mobo but am running into an unanswered question in regard to cpu cache size capability. The mobo instructions claim to support 512kb cache but I do believe 1MB cache was not available yet when it was written.

My understanding is the Prescotts have a 1MB cache while the Northwoods have only a 512kb cache, I've been out of mix for quite sometime and in the past the difference between 128kb and 512kb was what made the old pentiums superior to the celerons. Being old school, celeron remains a bad name for me, but I have been reading about some major changes since I was into all this.

2 questions, 1 will the P4P800SE support 1MB cache? and 2 do the Northwoods really out-perform the Prescotts as I have been reading. I need to choose a good cpu and simply want the best for my buck.

If anything I just posted is wrong go ahead and correct me, as I said I'm kind of a noob all over again as this is a major upgrade for me from my old p3 600b, I'm mainly a gamer but would like to learn more about OC and I'll read my way through that stuff. Any overload in information or quality links where I could go educate myself further would also be appreciated. I think I'm choosing a great mobo, now I just need to choose a great CPU. I do want to stay away from the LGA775 stuff for now due to costs and there seems to be more to offer with the 478 for less money.

Thanx and I'm a new member
post #2 of 7
Welcome to the forums.

The P4P800SE is compatible with Prescotts; there's absolutely no issue with getting the most out of that CPU with that mobo. The Celeron Ds are pretty solid processors, built upont he Prescott core. I wouldn't suggest one for a performance machine, but they'll rip through standard applications and light games without breaking a sweat.

About how much are you looking to spend on a new system? LGA775 systems aren't necessarily any more expensive than Socket 478 systems, and they will allow for greater upgrades in the future. Depending on your budget and if you have any components to carry over from your previous machine (yeah, it's old, but you may be able to salvage some parts here and there), we should be able to suggest some quality components for you.

The best place to start learning about Intel overclocking is this guide. It goes through all of the basics and will help get you speaking the OC language.
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post #3 of 7
Thread Starter 
I appreciate the fast response and the link is already bookmarked,

To answer the questions;

I was hoping to get a mobo in the $100 dollar range with the most options I can and good OC capability, CPU wise I hadn't decided on the total ammount I wanted to spend but maybe something less than $200, 3.2ghz+ capability I felt was more than enough with my current budget as far as mobo capability. Mostly I figured on getting an inexpensive CPU with the intent of upgrading it later. With some price checking on ebay I found the LGA775's were more expensive for similar speeds.

My current system is a P3-600B, 256MB 800mhz Rambus (pc800 rdram), Radeon 9200, Diamond Maxtor UDMA 100/133 (don't laugh), Memorex DVD burner, Creative 52x cdrom.

My intent was to get the Mobo, CPU, RAM and Case/power supply and use any drives I could til I could upgrade and put anything needed back in the 600 as it is still a solid machine and has uses and I have a Voodoo5 5500 to put back in the 600 as well.

I had intended on going with 400ddr instead of rambus this time do to the extra costs, with the cost of Rambus for a few gigs I could practically go with a 10-15k rpm scsci hard drive and still have more ram.

So 200-300 dollars for mobo and cpu basically and then take it from there, I'm open to suggestions of course but thought I was making a good choice with the P4P800 SE for its OC capability and all its options, although I did look at the P5P800 SE yesterday and it was of course quite abit more expensive, correct me if I'm wrong.

I'm still reading up on the processors but was leaning toward a (?)ghz, 800mhz FSB, 1MB cache CPU til I read the 512 cache info for the Asus mobo documentation. Probably a slower one initially but still checking on that part of it. However, Ultimately I'm gonna be looking at OC/SATA/RAID/WATER-AIR COOLER/FAN CONTROL etc etc etc, but like I said I'm very far behind the times in terms of current comp technology and have alot of work to do in those areas.

So mobo/cpu first and go from there, I have a working comp and should this turn into a several month project to complete a data-moving machine that would be fine.
post #4 of 7
I think you'll definitely be well served by going with a 775 system. The P5P800SE is almost exactly the same cost as the P4P800SE (actually, I think they are the exact same cost on Newegg). Both of those boards support AGP video cards, which would work well with your incremental upgrade scheme. Down the road you way choose to upgrade to a PCIe board as all of the new GPUs have a PCIe interface.

For CPUs, the 775s are actually a bit cheaper now. The 3.2E (478) retails for $231, while the 640 (775) goes for around $216. Both are 3.2 GHz Prescotts, and the 640 has an additional 1 MB L2 cache.

With either option, you're right around $300 for CPU and mobo.

Rambus is definitely old news and is not worth the horrendous expense of upgrading. If you go with the P4 board, you'll need DDR; for the P5, you'll need DDR2. The cost of both are roughly the same. If you're going to hardcore game, I would suggest going with 2x1 GB while most other uses will work fine with 2x512 MB. RAM coule cost you anywhere between $80 for 2x512 MB of decent value RAM to $250ish for high end 2x1 GB. There's a whole spectrum in between as well. The 2x1 GB option is becoming increasingly cost effective.

Again, I would suggest the 775 system for more options in the future. You'll certainly get a decent system out of a 478 (that's what I'm running), but there's not much of a future for one. By the time your project is complete based on your plan here, the next generation of processors will already be out.

Anyway, I hope you find this info helpful. I suggest checking prices on www.newegg.com as their search tools are very helpful. From there, check out www.pricewatch.com for the best prices. I would strongly suggest ordering from only reputable stores. You may find that you can save some decent money by splitting your order between two stores (I saved about 5% on my system by splitting between Newegg and ZipZoomFly).
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post #5 of 7
Thread Starter 
I see what your saying Taeric and you saved me from making a mistake I think, thanx for that

I did some more research and next question now is, can I run a 3.2ghz 2MB L2 cache processor on a board like the p5p800se? That 2MB L2 cache is a leap and dont wanna go blowing anything, and if I can run it, will I reap any of the benefits? Guess its the same kind of question for a different board regarding the L2 cache. Didn't see anything on forums for that board specifically.

I hate to buy DDR and then have to switch to DDR2 but I already found out their not compatible, and there are no boards with DDR2 and will also run an AGP card and simply not in a position to switch to PCI-e yet

Is the P5P800SE board a good board for my configuration limitations? And does it OC well? Or would there be a better board you or anyone might suggest?

From what I'm seeing I'll have to go with an AGP, DDR, LGA775 board and although I have IDE drives I'll be be switching to a newer Hard drive combo very quickly since I'm out of date all over the place. So SATA very quickly probably not raid though til I get a PCI-e GPU. Probably gonna be switching to a 975 chipset once I get everything I need but that's another post.

Thanx again for saving me from 478 and if there is no issue with the LGA775 2MB L2 cache issue at least I'll be able to switch my new CPU over to a new board in a couple few months. Guess I owe you a $200 saving beer
post #6 of 7
Unfortunately, the cost of performing an incremental upgrade is that some of the components will be a bit outdated by the time the full build is complete. If you want to go with DDR2 from the start, you don't necessarily need to buy a blazing PCIe video card now. The low end PCIe cards go for around $50, and you could always track down an old PCI card. The quality won't be all that great, but it'll run your system until your budget permits the investment in a nice PCIe card. That may well be your best option since you're looking at CPU, RAM, and mobo for now. Alternately, you can go the DDR/AGP route and buy some value RAM that won't stretch your budget too much. You can replace the mobo and RAM down the road.

There are certainly better 775 boards on the market than the P5P800 SE, but it's a nice board for the price. The high end Asus board runs more than double that, but it's the best 775 board on the market right now. The P5P800 SE runs on the 865PE chipset, which had a good reputation for overclocking (my 865PE Asus board got me a 25% OC without much of an effort, and I achieved that as a total newbie). While you won't be getting all of the bells and whistles that you would get out of a 955X board, you'll be getting a solid product that will perform well. There shouldn't be any issues with running 6XX series CPUs on that board. Just be aware that it won't run the 1066 MHz FSB 775 CPUs (the 640 suggested in a prior post is an 800 MHz FSB CPU).

Right now, the 640 is $218 delivered, and the P5P800 SE is $94.50 delivered. Both are from Newegg, and you may or may not do better elsewhere. That's a good starting point for budgeting, though. You could cut back on the CPU, but you'll lose performance a whole lot faster than you'll save money. How much would you have left to devote to RAM if you go this route? This is all based on going with DDR and AGP for now. I'll have to do some research if you go DDR/PCIe with a cheap video card.

Anyway, those are some thoughts.
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post #7 of 7
I'd like to add on to this. If there are some 775 mobos with via chipsets...they're good budget boards. I have a pt880 chipset, and I got my 1.8ghz northwood to about 2.8ghz, I think my ram is being wierd with me now, but people underestimate via so much, they've came a long way from my old via board. Its a good alternative to intel.
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