View Full Version : 865PE for LGA775 thoughts
Salkcin
08-07-2004, 12:20 PM
Hi... I wanted to share my thougths about the motherboards recently released using 865PE for LGA775 Prescott CPU's - because, are these boards HOT or NOT?
I see a great potential in these boards!.
First of all the boards would'nt feature a overclocking limit (10% - or hacked to 25% by Asus). In the overclocking adventures of LGA775 Prescott CPU's the CPU does already overclock the 25% (as limited) by a vcore increase of +50mV - I think I read! That is a great overclocking potential left behind!
Secondly the boards use normal DDR memory! that leaves us with memory capable of CAS2-2-2-5! WOOHOO. The DDR2's high latency is a unnecerssary performance penalty since the official speeds still is a effective FSB of 800MHz - only thing the that seperates DDR from DDR2 is the cas latencys and that's the normal DDR's advantage! Since 1066FSB CPU's aren't launched yet normal DDR is still the potentialy best choice for the CPU's!
Third I noticed the Abit AS8 has Game Accelerator! that gives us PAT - 875P performance. Asus P5P800 (wich is'nt available yet in Denmark) has HyperPath2 wich I believe to be PAT as well.
The Abit AS8 is priced 157$ here (969DKR) wich is'nt expensive at all (a 875P Deluxe model is priced about 210$ here)...
Take a look at the Abit AS8 manual and scroll down to the screens of the bios. It looks good! http://www.abit-usa.com/downloads/manual/as8.zip
Finally - I would expect a Pentium 4 520 (2.8GHz) to run about 3.8GHz with watercooling (dual 120mm fan watercooler). With a FSB:Memory ratio of 5:4 the memory would run PC3500 wich there is plenty of memory capable of running at CAS2-3-3-6 (at least)... then enable Game Accelerator and enjoy the small performance boost of PAT. I believe this setup would run faster than a Northwood at same speeds (wich defnently does'nt have the potential of running 3.8GHz on water). Let the Prescott reveal it's true power with low latency's and a optimized pin layout.
I read something about to that games like Doom 3 takes advantage of the 1MB L2 cache - the Northwood should actually lack behind the Prescott here.
What do you think? Is the potential of this so big that I believe?
EDIT: Here's a link for the Abit AS8... http://www.abit-usa.com/products/mb/products.php?categories=1&model=191
Second edit. Just looked at the board remebering I forgot to tell that the boards does'nt feature PCI Express and other 915/925 goodies, but what the f*ck! The 915/925 does'nt feature AGP at all so it's good to have a LGA775 CPU alternative for systems with AGP video cards
Salkcin
08-07-2004, 12:40 PM
HMMM - no replys yet
Just wanted to add a little quote from HARDOCP's oc adventure of the Prescott 2.8GHz LGA775.
"With our only adjustment being our FSB MHz, we could get the system to POST at 250MHz FSB and get to a WindowsXP desktop when the system was cool. The massive heat load of the Prescott CPU soon overwhelmed the stock cooling and the system would BSOD or freeze on the desktop."
Default voltage - 25% oc! with watercooling and upping the vcore and nb chipset voltage they were able to attain 255MHz FSB. If i remeber correct the Albatron hack to the 915/925 lock is increasing the voltage on the northbridge - might be the reason why they reached the extra 5MHz... can't tell why, but it's suspecious that it only reachs +5MHz with water and voltage increases when the first clock was all deafult on air!
Kanavit
08-07-2004, 01:34 PM
Looks good, go for it. Keep us posted! I wonder if zalman made a cooler for LGA 775 yet. if so, i will be following suit very shortly. Intel stock cooler is not acceptable on prescott cores. They make too much noise. the temps are good, but the noisy fan is not.
Salkcin
08-07-2004, 01:46 PM
That's kind a problem... there's no waterblocks available for Socket T (LGA775). I got a friend who's pretty cool to make those waterblocks, but he wants money for them (of course). We got 14 days full rigth to return the product we bought by postorder here in Denmark so I'm going for a Abit AS8 and Pentium 4 520 LGA775 (2.8GHz) here on Monday I think.... I'll proberly just borrow some memory (only testing the CPU's potential on the board).
But for overclocking testing I would only have the stock cooler - only thing I would could confirm is speeds beyond 255MHz FSB is attainable on 865PE (because of no oc lock).
The Socket T mounting mechanism is crap! The holes are in a "X".. I mean - it's in a square, but there are components between the holes :mad:
Kanavit
08-07-2004, 01:51 PM
just need to design a waterblock or vapo phase that has enough height to clear the capacitors on the mobo.
Salkcin
08-07-2004, 02:13 PM
I will find a way... somehow.
My idea goes like having a plate with 4 holes with a spring attached underneath. Then there should be 4 piles/long bolts - one in each hole. The plate would fit over these and stop when the spring hits the middle of the waterblock. Then press the plate down and lock it somehow to the piles.
It's hard to explain when it's not my native languech... hope you did get some of the idea :P
althes
08-07-2004, 03:54 PM
I used a ag8 got it up to 280fsb using 2.8 so 3.92Ghz, cant reach 4ghz for crap.using stock cooler.
skate2snow
08-07-2004, 04:44 PM
Yes, it is great if you whant a LGA CPU, but right now, I dont think theres really a LGA chip better then 478.....
WesM63
08-07-2004, 05:47 PM
Originally posted by skate2snow
Yes, it is great if you whant a LGA CPU, but right now, I dont think theres really a LGA chip better then 478.....
Ditto. Everything Intel has made since the "C" series cpu's are a total waste. IMO. Unless they come out with something worth while i'll continue to buy amd.
Originally posted by skate2snow
Yes, it is great if you whant a LGA CPU, but right now, I dont think theres really a LGA chip better then 478.....
do these new lga 775 chips run any beter then they did on the oldr style? ive been tempted tp build one of these but with a real 925 platform. then again this mb looks good to. but for me it all comes back to the one question? " will this be an improvement ove my 3.2c/3.2e oced at 4400 plus mhz???
thx perc,
Salkcin
08-08-2004, 09:37 AM
I'm going for Abit AS8 and a Intel Pentium 4 520 (2.8GHz) on Monday... should have it by Tuesday... I'll proberly first get to test it Thursday or something like that - I have to make a mounting mechanism for my waterblock :D
Xogun
08-09-2004, 05:32 AM
In these case, LGA775, what chip is better? the 2.8 or 3.0?
Xogun
08-09-2004, 05:35 AM
Originally posted by Xogun
In these case, LGA775, what chip is better? the 2.8 or 3.0? for OC of course
Soulburner
08-09-2004, 09:53 AM
Please don't double post, it really doesn't accomplish anything.
About the CPU, its all luck of the draw.
performance is luck of the draw? no man what im asking is... what do you guys think the advantages will be by using the 775 P4 chip on one of these 865 chipsets? think it would be worth it? think the prescott core would run anybeter then it does on the 865/875 platform? thats what i want to know. i know ocing is luck of the draw that a givven to any experianced ocer i think...
BTW do these boards exsist yet? does anyone know what the names of the board are going to be? example what would the abit one be called?
peace perc,
Xogun
08-09-2004, 03:08 PM
i saw at ABit website LGA775 versions with 865PE and 915/925, i dont know which one is better.
Salkcin
08-10-2004, 07:21 AM
The advangetes of the 865PE boards for the Prescott LGA775 is...
1. NO overclocking lock!
2. Low latency memory (normal DDR)
3. AGP slot (915/925 have no support for this at all)
I can mention 2 boards - Abit AS8 (available) and Asus P5P800 (haven't seen it in the stores yet). The Abit AS8 has Game Accelertor (PAT)... the Prescott LGA775 should run 10watt's cooler than a S478 at same frequency and another thing is that HardOCP's 2.8GHz ran 3.5GHz at default voltage (1,4v) - seen some 2.8GHz Prescott's on S478 wich ran 3,9GHz on water... why should'nt LGA775 be the same!
By the way, I have'nt ordered the hardware yet
well im ineterested and fixing to order the 2.8 or the 3.0 havent made my mind up yet. just need more info on this plat form. any links you may have...
thx perc,
masterofpuppets
08-10-2004, 08:09 AM
I might get an Asus P5P800 when the LGA775 EE chips are released. Or maybe an 875 mobo if that is released for LGA.
Salkcin
08-10-2004, 08:11 AM
I currently a RAMBUS user so I don't have any memory for testing. I'll talk to a friend later who I think has 2x256MB left over that I can borrow for some testing.
My plan is to buy the Abit AS8 and a Pentium 4 520 (2.8GHz) and test it - if i'm not satisfyed I'll return it (I have 14 days of full right to return what I bought by postorder). I'll proberly be ready for some testing this weekend.
Perc->
The Abit AS8: http://www.abit-usa.com/products/mb/products.php?categories=1&model=191
A very incomplete review: http://www.trustedreviews.com/article.aspx?art=512
That's what I have about the platform...
Perc->
The Abit AS8: http://www.abit-usa.com/products/mb...ies=1&model=191
A very incomplete review: http://www.trustedreviews.com/article.aspx?art=512
That's what I have about the platform...
thank you sir :toast: now i have some place to start :)
peace.....
soltek has one of these hybred boards out too.. heres a link and pic. not bad looking mb...
http://www.newegg.com/app/viewproductdesc.asp?description=13-180-062&DEPA=1
peace perc,
Salkcin
08-11-2004, 05:27 AM
damn! are you considering a Soltek mobo? someone should slap you :D
Soulburner
08-11-2004, 08:56 AM
Originally posted by Perc
performance is luck of the draw?
Read up, I was replying to Xogun.
Originally posted by Soulburner
Read up, I was replying to Xogun.
yeah and? is there a problem? i sures hell wasnt talking to you or trying to say anything bad so wtf? you just feel like starting :banana: :banana: :banana: :banana: or what? why dont you read up? then youd see that your out burst was uncalled for man.....
anyways.... whata you guys think? 2.8 3.0 or 3.2 ?? i kinda feel like the 3.0 or the 2.8 would be the beter of the three just incase the platform sucks im not out that much money.... probly going to grab that abit AS8 hybred mb and the 2.8 or do you guys think i should just get the 3.0?? im so undecided.....
damn! are you considering a Soltek mobo? someone should slap you
LOL no man i have never tried nor even thought about buying one of them soltek's even way back when they were suposed to be good nforce2 mb's but they do make some sexy looking boards i must say :D
perc,
Anemone
08-11-2004, 11:08 AM
Swiftech 6002 will have a 775 mounting soon, and its not that much $$
althes
08-11-2004, 01:38 PM
excellent
oh yeah thats right the mounting isnt going to be the same as the 478 boards. i gues my sp-94 and my intel mounting kit for my mach1 wont work uh? i bet i could jimmy my intel kit to work with the new 775 socket no? im going to order the 3.0 and the abit as8 ive made my mind up ordering friday :D now i just need to go find some performance reviews...
later perc,
Xogun
08-12-2004, 01:27 AM
Well i ordered the P4 530 (3Ghz) now im whaiting for Abits mobo, but still im confuse in what mobo should i choose, AG8 or AS8,
AG8 pcix with DDR400 and 3rd eye the new abits toy.
AS8 AGP with DDR400.
What do you guys think?
Salkcin
08-12-2004, 06:42 AM
Xogun->
Well, the 915P does'nt feature AGP at all so if you don't have a PCIX videocard I would choose the AS8 - the AS8 should'nt have OC lock (limited to 25% over default CPU speed) like the AG8 (915P)
im going to order the 3.0 and the AS8 tonight, i just hope this isnt a big waste of money? i dont see how this new platform or should i say new socket withold chipset is going to help any? once again anyone have any idea how this is going to run? would a regular 3.2 and 875 be just as effective? i almost ordered last night but chickend out :D i just wish there were some reviews with this AS8 mb and the new 775 chips? somthing to show the performance gains... oh well im going for it, ive wasted money or dumber :banana: :banana: :banana: :banana: then this.. ill post with results when i get the hardware in my grubby little hands :D
peace perc,
I get a 3.0 es + ASUS P5GDC Deluxe
The Board supports DDR + DDR2. Hope it works good. :)
Rabbi_NZ
08-16-2004, 07:50 PM
here's a review of the Soltek board at Anandtech Soltek 865Pro-775 (http://www.anandtech.com/mb/showdoc.aspx?i=2169)
Sheik
08-16-2004, 10:41 PM
Rabbi_NZ just beat me to it. I think it sounds very cool.
One of the reasons an 865PE chipset might be useful is because it is one of the best overclocking chipsets ever produced by Intel. At stock voltage we found we could reach 265FSB with a 2.8 LGA 775, or about 3.7GHz, at default voltage. This is one of the best overclocks we have achieved with a Socket 775 processor with a SATA hard drive, and it is certainly an improvement over the 10% OC limitation we are seeing on some 915 motherboards.
enzoR
08-16-2004, 11:56 PM
howcome they dont slap it with the 875 chipset
Salkcin
08-29-2004, 04:09 AM
I got it running here, but the P5P800 seems to have some bugs. Over 3,5GHz it dpes'nt detect the CPU frequency.
250x14, 1:1 CAS3-4-4-8, HyperPath enabled, default voltage - STABLE
http://users.cybercity.dk/~dsl30381/p45201.jpg
275x14, 3:2 CAS3-4-4-8, HyperPath enabled, default voltage, UNSTABLE
http://users.cybercity.dk/~dsl30381/p45202.jpg
The funny part is that it does 275FSB at default voltage and boots 280FSB at default, but not into Windows. Raising the vcore +100mV does not even help, cooling the nb and mosfets with serious fans does'nt help, the memory is underclocked a lot - could'nt be them. The CPU is watercooled and loads beneath 50 celcius degrees... and all speeds over 250FSB with 5:4 does blue screen (memory compatiblility problems?)...
It might be my Q-tec 550WATT cheap PSU - the CPU loads at 122watt at 275FSB and default voltage, but the potential is there. If others wanna try I'd recommend Abit AS8 (have'nt triedd it, but it seems better)