Which way to go: p4 1.6a O/C'd, or Xp1900+

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Originally posted by AMD Soldier


The top fsb I seen was 228fsb. I have gotten mine to 193mhz stable and if I had better ram I could of want higher for sure. If your ram can take it, more likey than not you'll get a high fsb with that mobo.

Oh and about it being cheaper, well round $8 bucks, hehe not by much. And you could get a 1800 AXP for much cheaper, not like you'll notice a difference in speed anyways. I'd much rather just get a cheap 1700 or 1800 and unlock that, much better value I think, or hell even get a 1ghz Duron. Believe it or not, mine performs as an AXP 1600-1700. Heck I can't tell the difference between that Duron and my AXP 1800, only in divx encoding can I notice a small difference.

But back to the topic at hand... Running cooler... like I said, they don't get that hot, sure the Tbirds were, but that's not the point. I consider 36-40C for stock cooling good temps, and isn't that hot for me. And an OCed 1900 @ 2200 w/ 1.85v would run aroud 45-50C with stock cooling. Not bad at all, now put in a $20 Volcano 7 in there and the temps will drop back down to under 43C. Now retail packages cost around $15-25 more than the OEM's on average, and if the Volcano 7 costs $20, than theres no difference in price, thus paying more for extra cooling, is invalid. ;) Sure you can get even more expensive cooling if you'd like, but it's not required, nor needed really.

Newbie-Overclocker, unlocking the AXP is just a bonus. 1900 AXP(12x133=1600) and to get to 2200 AXP level you'd only need 150fsb (12x150=1800). So even without unlocking the cpu you can hit that easily if the cpu will go that far. Heck with an AX-7 and decent fan or even an Volcano 7 and with 2v+ into the cpu I'm sure it could go higher than that.

I do admit that if you don't unlock the cpu, you will generally get better results with the 1.6A system than the AXP, but when the AXP is unlocked the story changes a bit. I don't think theres a clear winner here, but I know what I'd do. Rather pick up a 1800XP for less bucks and get nearly the same performance for less than the P4 or the AXP 1900. :p

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'The top fsb I seen was 228fsb.'
That is very rare my friend. You will need really good parts to handle that kind of PCI speed. I've seen P4s up to 800FSB as well, but like I said, really high FSBs are really rare.

I do agree that the Athlon XP 1800+ is better value than the 1900+, but OEM prices here in AUS still put the P4 1.6A ahead in value if you take into account the extra cooling required for the Athlon XP.

I think the Athlon XP needs to be unlocked to be competitive with the P4 1.6A when overclocked. Remember that a P4 1.6A @ 2.4Ghz has a 50% higher FSB than at stock. With an Athlon XP, to get a 50% higher FSB than stock you will definitely have to unlock, plus you will need to handpick the HDD, PCI devices and USB devices to work at such high FSBs.

And gemini8026,
Be careful when you choose P4s!
P4 1.6 = Willamette
P4 1.6A = Northwood
P4 1.7 = Willamette
P4 1.8 = Willamette
P4 1.8A = Northwood
Don't make the mistake of getting a Willamette P4!

The new 533Mhz FSB P4s will work with existing socket 478 mobos.
As for best mobo, it depends if you want to use RDRAM or DDR.
I'm not too sure about RDRAM, but if you're going the DDR route then I recommend an Asus P4S533 (Sis645 DX) mobo and some good quality DDR333 aka DDR2700. For maximum performance make sure the CL rating on the DDR is 2, not 2.5.

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Originally posted by azns_kickass


'The top fsb I seen was 228fsb.'
That is very rare my friend. You will need really good parts to handle that kind of PCI speed. I've seen P4s up to 800FSB as well, but like I said, really high FSBs are really rare.

I do agree that the Athlon XP 1800+ is better value than the 1900+, but OEM prices here in AUS still put the P4 1.6A ahead in value if you take into account the extra cooling required for the Athlon XP.

I think the Athlon XP needs to be unlocked to be competitive with the P4 1.6A when overclocked. Remember that a P4 1.6A @ 2.4Ghz has a 50% higher FSB than at stock. With an Athlon XP, to get a 50% higher FSB than stock you will definitely have to unlock, plus you will need to handpick the HDD, PCI devices and USB devices to work at such high FSBs.

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Yeah just wanted to show yea how far they can go, but yeah the average is around 195mhz with good ram I'd say. It's really not that hard, most modern HDD's I used work well with high pci bus speeds, so I never had any issues with that.

In other parts of the world the prices are different for various things I'm sure, from what you stated, sounds like the P4 is a better value there. Here in the States the 1900 AXP is just $8 more on pricewatch. While the 1800 AXP is roughly $25 cheaper, however I just read up a bit on the 1900 AXP and looks like they OC past 1900mhz quite well with extreme CV (1.95v+). If in fact they do OC to 1900 and beyond than, the 1900 actually would be the better value of the P4 and the 1800. Of course it's all counted on the OC, some 1.6A's I'm sure do 2.5ghz+.

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Originally posted by AMD Soldier


Yeah just wanted to show yea how far they can go, but yeah the average is around 195mhz with good ram I'd say. It's really not that hard, most modern HDD's I used work well with high pci bus speeds, so I never had any issues with that.

In other parts of the world the prices are different for various things I'm sure, from what you stated, sounds like the P4 is a better value there. Here in the States the 1900 AXP is just $8 more on pricewatch. While the 1800 AXP is roughly $25 cheaper, however I just read up a bit on the 1900 AXP and looks like they OC past 1900mhz quite well with extreme CV (1.95v+). If in fact they do OC to 1900 and beyond than, the 1900 actually would be the better value of the P4 and the 1800. Of course it's all counted on the OC, some 1.6A's I'm sure do 2.5ghz+.

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I agree with you on most things there. I think a PCI bus in excess of say 40Mhz would certainly affect stability on certain setups. For example my USB mouse and Printer won't work at a 41.3Mhz PCI, and my IBM GXP60 HDD will work at 41.3Mhz PCI, but won't work at 44Mhz PCI.

Well, here in Ozland, an Athlon XP 1800+ OEM is $239AUD, a Volcano 7+ costs around $55AUD and a P4 1.6A is $299AUD.
I think if this thread was P4 1.6A vs Athlon XP1800+ then you AMD dudes could put up a better argument, because the P4 1.6A would no longer be cheaper.

All in all though, I think that if you are an experienced overclocker, who knows the best mobo and RAM and HDD to use, then going with either Athlon XP or P4 NW will pretty much give you the same results in the end. Just that the Athlon XP is a much bigger hassle with the unlocking. :)

For the average overclocker, however, there is nothing simpler than to change the FSB to 150Mhz and raise the voltage 0.2V or so and instantly get a P4 2.4Ghz. :D

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Originally posted by azns_kickass


For the average overclocker, however, there is nothing simpler than to change the FSB to 150Mhz and raise the voltage 0.2V or so and instantly get a P4 2.4Ghz. :D

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It pretty funny how easy it is . I remember seeing a video review where the guy just change the FSB to 150 (fast mem timings) and hit 2.4 on stock cooling and defualt voltage :)

I beleive he used a Abit BD7-533 mobo.

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Originally posted by cocacola155


It pretty funny how easy it is . I remember seeing a video review where the guy just change the FSB to 150 (fast mem timings) and hit 2.4 on stock cooling and defualt voltage :)

I beleive he used a Abit BD7-533 mobo.

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=) after I saw that video I finaly decided to upgrade! :)

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Originally posted by Newbie-Overclocker


=) after I saw that video I finaly decided to upgrade! :)

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Hey what mobo are you using to OC that beast ? :)

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Originally posted by cocacola155


It pretty funny how easy it is . I remember seeing a video review where the guy just change the FSB to 150 (fast mem timings) and hit 2.4 on stock cooling and defualt voltage :)

I beleive he used a Abit BD7-533 mobo.

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Actually, I think the guy had it at the maximum voltage the board supported, which was 1.625V.

Kind of OT but... this really irritates me.

When I got my 1.8A off Newegg, reading the reviews... praises abound. Then I got down to the bottom and some idiot writes this:

Carbo,2/7/2002 11:18:26 AM

I must say that i'am very dissapointed with this chip processor. It works the same as a P3 700 mhz. I see now, why everyone is leaning towards AMD.

It can OC to almost 4 times a 700 and works the same? Okay, buddy.

I'm sure a few Intel zealots have done this in AMD's reviews section but come on -- grow the F_ up. How can "everyone" lean towards an AMD unless "everyone" has tried a 1.8A. What a moron... I dare anyone to find a fault with the 1.8A, other than its "high price" in a market based strictly on the fluxuations of supply, demand and fast-paced advancements in technology. :rolleyes:

I thought the reply to it was funny though...

N/A,2/12/2002 12:43:37 PM

This chip screams! Installed on an Abit TH7II-Raid and hit 2.4ghz with retail cooler. Best bang for the buck. I guess if you only play solitaire, then you really won't see any difference in a P3 700. AMD is MUCH better for solitaire ;)