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XP3000+ (400) w/ PC-2700 mem (333)

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October 25, 2004 7:30:09 PM

I have a friend of a friend that's upgrading his AthlonXP 3000+ (400fsb)system to an athlon FX-55 system. He already sold his old motherboard and memory, but he'll give me a good deal on the CPU if I buy it from him by next weekend.

My current system has a MSI Nforce2 (K7N2) mobo with an XP 1700+ and 512mb PC-2700 (166x2). I'm thininking about taking the deal at $70 and I have some questions before I buy. (I checked my mobo's bios and I'm sure I can run at 400MHz)

(If you can answer all of them, please do, as it will probably determine whether I buy from him or wait until X-mas and purchase online from Newegg.com)

1. Price not a factor, would I be better off with an XP3000+ (333)? Or would other parts of my system run faster with the 400fsb?

2. Am I creating enough of a memory bottle-neck for it to be worth replacing my old stuff with PC-3200? Meaning, would i see a big performance jump with faster memory? (price a factor)

3. Would you take this deal if you had my system? (check signiture

4. Do the XP3000+ 400 CPUs run much hotter then my 1700+? I have a stock heatsink/fan and I'm wondering if I need an upgrade. (I don't OC)

5. Oh, and I guess I should ask, (though I'm pretty sure it will) will my system run at all if I have a FSB running faster them my memory? 400fsb/333mem



---MY RIG---
MSI Nforce2 (K7N2) w/ Athlon XP 1700+
512MB PC-2700 Kingston Value
Geforce 2 GTS (*blush*)
WD800JB 80GB,IMB 20GB
USB 2.0 WD 15GB HDD
Pioneer 16X Slot DVD
Sony DRU-510A DVD-RW<P ID="edit"><FONT SIZE=-1><EM>Edited by WRUGOIN on 10/25/04 03:31 PM.</EM></FONT></P>
October 25, 2004 7:44:25 PM

1. 400FSB is better than 333FSB. I don't reall y understand that question
2. As above. Athough the cost of replacing your old RAM with PC3200 may not justify the performance gain.
3. Probably.
4. You will probably need to buy a new HSF.
5. With Athlon XP's you must run your FSB in sync. There is no way to set the CPU fsb to 400, and the RAM to 333.

You may be able to overclock you RAM to DDR400 speeds if your lucky. A stick of my DDR333 o/c way past DDR400 :lol: 

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October 25, 2004 8:27:33 PM

Quote:
With Athlon XP's you must run your FSB in sync. There is no way to set the CPU fsb to 400, and the RAM to 333.

This I'm confused about. Currently, (according to my bios) I have an XP1700+ that runs at an FSB of 133MHz, and my DRAM is set to 166MHz. So, I'm not sure if you're entirly correct about it needing to run in sync. Though, if I'm misreading or incorrect about running a faster FSB then memory timing please let me know.

By the way, thanks for the answers to my questions.

---MY RIG---
MSI Nforce2 (K7N2) w/ Athlon XP 1700+ (266)
512MB PC-2700 Kingston Value
Asus 7700 Geforce 2 GTS 32MB
WD800JB 80GB,IMB 20GB
Sony DVD-RW, Pioneer 16X DVD, 15GB USB2.0 HDD
<P ID="edit"><FONT SIZE=-1><EM>Edited by WRUGOIN on 10/25/04 04:35 PM.</EM></FONT></P>
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October 25, 2004 8:43:49 PM

Here's the way I see it:
I have a 2000+xp that i was gonna upgrade to 3000+ also (the price break btwn that and the 3200+ is why i stop there, that and I'm limited to socket A). I have 1GB of DDR2700 ram and was considering what i had to do. I could either:
1)Try to trade a 512 stick of 2700 for a 512 stick of 3200 and make up the difference in cash, (using the other stick on another system)
2)Just buy a 3000+ cpu with 333fsb or
3)Go with a 3000+ or 3200+ with 400fsb and never see my system work.

The fsb has to be run in sync. This means that 333mhz ddr ram runs at 2x167mhz. Your memory would have to be able to overclock roughly 20% (33mhz) for an overall push of 40%. Thats how it works. You won't see a 40% improvement from the memory alone, that'll be your overall gain from using the 3000+. If the deal is good enough, buy it anyways and resell. Otherwise, its just easier to buy the 333fsb version.

"If it ain't broke, fix it till it is."
October 25, 2004 9:35:36 PM

Are you feeling ok mate, who told you that a athlon XP 3200 barton 400FSB has to run insync basically have the same memory speed of 400mhz to run. Sorry but sum1 is taking the piss out of ya.

ive ran a 3200 XP (4000mhz) with 2700 ddr (333mhz)no problem motherboard recognized everthing in bios and ran perfectly.

JOB DONE



http://www.overclockers.co.uk/acatalog/Corsair_XL.html
October 25, 2004 10:05:39 PM

Quote:
5. With Athlon XP's you must run your FSB in sync. There is no way to set the CPU fsb to 400, and the RAM to 333.


this is untrue. by bios has options to run the ram at different speeds, you can choose different ratios based off the fsb

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Brand name whores are stupid!
October 26, 2004 12:49:43 AM

You've already had one reply touch on this, but it would be the FIRST thing I would try....OC THE PC2700 YOU ALREADY HAVE! You'd probably have no problem getting it up to PC3200 speeds, you may have to adjust timings down on it (like 3.0 4 4 8). I realise you haven't bought the proc yet, but like everyone else is saying...it's a safe investment. So long as he's not ripping you off (it's street price is about $100, so I wouldn't pay any more than 'bout $75). So buy it, and cross your fingers your memory will OC. If he's really your buddy, see if he'll let you try it out first. Getting a new HSF is a good idea, but it'll run with your current one on a pinch, so long as you properly install it with a good thermal compound.
October 26, 2004 1:03:02 AM

Well, I've checked the bios on my MSI Nforce2 mobo and I confirm that I can run the DRAM timing seperatly from the FSB. I won't need to overclock my memory.

Right now, my rig is running an XP1700+ with a FSB of 266MHz. My PC-2700 memory is running at 333MHz. This is obviously not in sync. My motherboard lets me set these specific clock speeds independently. Thus I'm not worried about having to overclock the memory. The computer should run just fine with the XP 3000+ (400)

So, I guess the only thing to worry about is the slight bottle-neck the memory will give me with it running 66MHz slower then the FSB. However I'd bet that I'd still have equal to better performance then if I just went with the XP 3000+ (333) as other parts of the system will benefit from the extra speed in the FSB


---MY RIG---
MSI Nforce2 (K7N2) w/ Athlon XP 1700+
512MB PC-2700 Kingston Value
Asus 7700 Geforce 2 GTS 32MB
WD800JB 80GB,IMB 20GB
Sony DVD-RW, Pioneer 16X DVD, 15GB USB2.0 HDD
<P ID="edit"><FONT SIZE=-1><EM>Edited by WRUGOIN on 10/25/04 09:07 PM.</EM></FONT></P>
October 26, 2004 2:56:06 AM

it wont be that much of a problem... definately try overclocking that ram as someone said above!

i have a stick of PC2700 that runs at PC3200 cas2.5

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<A HREF="http://www.albinoblacksheep.com/flash/you.html" target="_new">please dont click here! </A>
Brand name whores are stupid!
October 26, 2004 3:57:17 AM

A couple of things. First off, the xp 3000+ gets 100+ from the increased memory bandwidth of running the memory at pc3200 speed, so you would really have an xp2900+.
Secondly, you could get much better performance by going to one of the xp-m chips.
!