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P4T

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First post, by kladivkoman

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Greetings fellow collectors and retro hw enjoyers...i've built/modified many old pcs and components, found lots of usefull information here so i'm hoping to find some help here today too...i've been stashing parts for a best 2000 build(atleast according to my expectations), and ive gotten my hands on Asus P4T motherboard ...just regular p4t, no suffix to it, and i cant find anywhere reliable data about ecc rdram support on this particular mobo ...in manuals the ram slots are labeled as 16/18bit but only mention of ecc is some l2 cache ecc option in bios, nothing regarding ram...does anyone know if this mobo supports just regular rdram or could i go w/ ecc? They both expensive but ecc is more common and bit cheaper than non ecc so id really appreciate some info...thanks once again in advance 😀
Ps:i've also managed to find quadro 2 pro for 20€ which am probably gonna mod to gf2ultra(found a gr8 manual on this site too, among many others)...i'll post some benches when i'll fire that badboy up...also am deciding between 1 gig or 2 gigs of dram for this mobo...is there any disadvantage for having more ram like it was with cacheable area of some older mobos/chipsets? Any info appreciated...thanks again 😀

Reply 1 of 13, by luckybob

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You dont want to use ECC ram. it only serves to slow down the system for gaming. Its good for servers, and thats it.

The ram should not matter much. most people had 256mb so 1024mb was a "baller" setup. its possible 2gb will not be 100% stable, but its something I would do personally just for the dick-swinging factor.

It is a mistake to think you can solve any major problems just with potatoes.

Reply 2 of 13, by kladivkoman

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luckybob wrote on 2024-10-27, 22:59:

You dont want to use ECC ram. it only serves to slow down the system for gaming. Its good for servers, and thats it.

The ram should not matter much. most people had 256mb so 1024mb was a "baller" setup. its possible 2gb will not be 100% stable, but its something I would do personally just for the dick-swinging factor.

Thanks...also i've been thinking bout making oc overhead by getting 1066rdrams but as i get it they wont downclock like modern ram, they wont just work at all in this board ...am i right? Board officially supports just pc800 rdram...

Reply 3 of 13, by luckybob

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i have not heard rd-ram is not backwards compatible with lower speeds. its usually fine for all ram i've ever used. 9/10 times faster ram will be just fine at slower speeds. But if there was a memory that did buck the trend, RDRAM would do it.

Also, dont FORCE any overclocking. The risk reward is not there.

It is a mistake to think you can solve any major problems just with potatoes.

Reply 4 of 13, by GemCookie

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luckybob wrote on 2024-10-27, 22:59:

You dont want to use ECC ram. it only serves to slow down the system for gaming.

And to prevent random bit flips that can destabilise the system once it's run for a while.

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Reply 5 of 13, by The Serpent Rider

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GemCookie wrote on 2024-10-29, 08:48:

And to prevent random bit flips that can destabilise the system once it's run for a while.

Unless you're planning to run a retro gaming rig 365/24, that's not an issue.

I must be some kind of standard: the anonymous gangbanger of the 21st century.

Reply 6 of 13, by kladivkoman

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let's say i want to OC and i want to put that machine through some hell...i plan to render some things on it, it'll probably take hours...i've read that ECC standalone is inferior in performance to the same spec non ecc counterparts but i've seen mixed views on overclocking...some say ECC overclocks terribly while i've read that ECC can overclock even better than normal ram...i guess it just depends on the case...i've once found some 667ecc that i've ran w x2 64 5600+@3.6-ish, the ram was working flawlessly on +-900mhz on auto voltage setting...but thats rare case i guess...also some said that when overclocking ECC comes in handy as u never know if your memory OC is stable...on my main rig i got DDR4 which i've ran 3700CL16 for quarter a year...it was pretty stable but it used to crash from time to time...some specific games like kenshi(gosh i've torn many hair outta my head for that one) would crash in 15 minutes, 2 hours, sometimes i could play for 8 hours str8 and it wouldnt crash...then i've read something bout lynnfields not being memory tolerant bc they had some kind of ram related voltage lower than their older counterparts...i've gotten an idea, lowered the ram to 3600CL14 and it works flawlessly now, no crashes...i guess it also has something to do with the IMC but P4s don't have IMCs so i can't relate to that in this way...thanks for answers 😀 i'm happy that there are active and helpfull people round here

Reply 7 of 13, by luckybob

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WallofTextMeme.jpg

The Enter key is your friend.

Moving on. Overclocking is NOT worth the time and effort on old hardware. Full stop. Nobody is going to stop you, so you can waste your time as you please. When you overclock things, it puts additional stress on the parts. Sometimes this doesnt matter, but the older parts get, the less they are tolerant. (in general). ECC ram uses another physical chip to hold the parity data. Thats another chip connected to the memory controller, consuming power and putting more stress on a part that doesn't need it.

Just get the system up and running with the parts you want. THEN, you can play around with some tuning.

It is a mistake to think you can solve any major problems just with potatoes.

Reply 8 of 13, by The Serpent Rider

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Generally speaking, ECC memory modules are not using "handpicked" or high performance chip (insert letter)-Dies, only something that 100% complies to JEDEC spec. In case of RDRAM, there's not much difference, simply because there were no "enthusiast" memory modules to begin with. No such market segmentation existed back then. So unbuffered ECC should behave more or less the same. But then again, it has no practical use case. Only if you just so happen to find ECC modules cheaper.

Overclocking on old hardware is worth it, if you're not trying to abuse voltage increase and/or getting past silicon sweet-spot, i.e. when increasing voltage moderately stops providing significant clock boost.

I must be some kind of standard: the anonymous gangbanger of the 21st century.

Reply 9 of 13, by luckybob

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no.

P4 chips did not overclock well. No contemporary motherboard did a good job of it. The voltage regulation technology just wasnt there yet.

RIMM memory generates a massive amount of heat at stock speeds. overclocking will just compound the issue.

That doesn't mean you cant optimize settings, but you are fighting an uphill battle with this platform.

It is a mistake to think you can solve any major problems just with potatoes.

Reply 10 of 13, by dionb

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Indeed. Also consider this was very early (Willamette) P4 silicon and very early i850 chipset. Both were pushed into production as soon as they were remotely stable and both ran close to their limits in stock. If you were to have a P4T-E with i850E chipset and So478 with Northwood support, you could do some modest overclocking (although the VRMs would probably still be limiting - Netburst was very power-hungry), but you can compare this to trying to overclock on an 1993-era Pentium on i430LX chipset. Everything was running hot and a bit premature for the architecture.

If you really want to overclock with old stuff, get yourself an early Slot 1 Celeron, or perhaps a late Tualatin. Both were overengineered, running far below what the chips actually could do for commercial - not technical - reasons.

Reply 11 of 13, by The Serpent Rider

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As someone who has a practical experience of overclocking Willamette CPUs on Socket 478, I can say that they are overclock quite well. 33-40% clock boost (for models in 1.4-1.7 Ghz range) without touching any voltages is pretty good in my book. And you can pair Socket 423 with PC 1066 RDRAM too.

I must be some kind of standard: the anonymous gangbanger of the 21st century.

Reply 12 of 13, by kladivkoman

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The Serpent Rider wrote on 2024-10-30, 13:04:

As someone who has a practical experience of overclocking Willamette CPUs on Socket 478, I can say that they are overclock quite well. 33-40% clock boost (for models in 1.4-1.7 Ghz range) without touching any voltages is pretty good in my book. And you can pair Socket 423 with PC 1066 RDRAM too.

Thank you all for answers...also one thing i was wondering about is if p4t can run 1066memory...in official spec i850 can only support 800 memory and i think ive read somewhere that it wont simply boot w 1066 modules...can anyone give advice regarding this? Could be usefull regarding oc overhead

Reply 13 of 13, by luckybob

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It SHOULD be okay, but personal experience with RD ram has shown me otherwise.

With ALL other dram memory, 'faster' ratings have had no issue with running at a lower ones. I've never had a 60ns simm not work at 70ns. 133 sdram has always worked just fine at 66mhz.* DDR400 has no issue running at 266. Granted, my personal experience with RIMM is limited. I think i have 2 boards that use it, and only a handful of rimms in storage.

*- i have had some 133 dimms not work in 66mhz boards, but I later found out the real reason wasnt the speed rating, but capacity.

It is a mistake to think you can solve any major problems just with potatoes.