So tell me, any visible differences between rev. 1.2 and rev. 2.0 of 4PCA3+ ? Besides the DIMM and IDE colors. New capacitors, slightly changed layout, anything ?
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So tell me, any visible differences between rev. 1.2 and rev. 2.0 of 4PCA3+ ? Besides the DIMM and IDE colors. New capacitors, slightly changed layout, anything ?
Well, the box is changed :D . The older revs came in a white box whereas the 2.0 is in a chrome/blue box. I've not had the 2.0 out of the box yet to check. But if it's like the 4PEA+, Pilsy said he could see no visible differences between 1.0, 1.2, or 2.0 versions of that board.Quote:
So tell me, any visible differences between rev. 1.2 and rev. 2.0 of 4PCA3+ ? Besides the DIMM and IDE colors. New capacitors, slightly changed layout, anything ?
Not sure what's going on with Epox. It's like limited editions of the board, or something. The 2.0 I had to get from Censuspc.com in the U.S. Only have good things to say about them. They ship FPO AP for one thing, and only charged $8.50 for freight whereas Newegg charges $13.80. Got the board in 5 days. But seems nobody else in the U.S. has them. The 4PCA3+ is all gone in Japan. Nada. No sign of Rev. 2.0s, just like with the 4PEA+. I got the 2.0 for $149 and can get $130 for a used board here so it was basically an exchange.
Clevor: I know later isn't necessarily better, but the rev 2.0 has Vcore up to 1.85 V, whereas the 1.x has only up to 1.60 V. I need those extra volts, and more to the point, the voltages in between 1.60 and 1.75 V. :)
Interesting that you say you got better OCs on the 4PCA3+ than on the IC7, many people seem to report the opposite...
Looks like I'll get another board to try regardless! :D
Actually the 4PCA3+ is not the best clocking board I've tried, as the P4C800-E did 287 on the same CPU which did 277 on the Epox. But I attribute that to the 1.58 true VCORE max, whereas on the Asus I was running around 1.62. Still, that is not enough to make up for 10 mhz. More like 5 mhz.Quote:
Interesting that you say you got better OCs on the 4PCA3+ than on the IC7, many people seem to report the opposite...
And yes, I'd like the 1.85 VCORE too, but on most the boards I tried, increasing VCORE above 1.65 only made the overclock worse. I think settings above that are phantom settings. If the boards are Prescott compatible they shouldn't be capable of more than 1.60, I believe.
But nobody does VDIMM better than Epox. VAGP and VDIMM is rock steady. The 4PEA+ is the lowest undervolting board I've seen: .025. Most boards undervolt by .05. I think the boards die because the VAGP is sucking 1.8 volts, the VDIMM up to 3.3, the VCORE 1.65 or whatever. I am using very good cooling on my board with fans blowing over the mosfets and ram. I'm using a trusty Sparkle 400 watt power supply with pots bumped a bit, although my 3.3 volt rail is chronically low.
I've not had any luck with an IS7 or MaxIII; got rid of both boards. They only did around 260-265 fsb 3D stable on the same CPU and could not run BH-5 worth a darn.
Just got my rev2 today, now I'm just waiting on my 2.4C from newegg. It came in a shiny purple box w/ a sticker that says rev2.x. Rev 2.0 is printed on the mobo pcb also. I like the purple rounded ide cables that come in the box. The board sure looks nice too, I've always liked the green color, especially compared to Asus' crappy brown/yellow. Man I'm itching to get this sucker fired up, I guess in the meantime I'll think of ways to mount my dtek NB waterblock. Any suggestions? I'm thinking about just 2 zip ties through the metal loops and a 50/50 mix of AS epoxy and AS3...
not sure about mounting it, but as5 comes out in 5 days. :D
I kniow, the box is different as well, but who cares. Same regarding the rounded cables, color is not important.
Clevor, can you do me a favour ? If you still have the 1.2 and 2.0 rev. of 4PCA3+, can you tell me if there is any performance difference between the two ?
PS. As for OCing, as strange as it may seem, I've heard of many 4PCA3+ users that can take their boards to 300MHz FSB and above.
300fsb wouldn't be strange, but above is basically impossible with this board, atleast much above 300. the 4pca3+ and 4pda2+ have a bug where the agp/pci lock doesn't work over 300fsb. If you have an ati card you won't be able to get much higher, but supposedly with an nvidia card you might be able to go higher because they have a higher tolerance for higher agp/pci speeds...but then you have to use an nvidia card, and I don't even know if that actually will help. I should be able to get to about 315fsb(boot not stable) with my 2.6c, so I will be able to test +300fsb oc'ing with different cards...unfortunately the only nvidia card I have is a ti4200...wouldn't mind seeing what kind of 3dmark scores I would get with it :DQuote:
Originally posted by Alexandrus
I kniow, the box is different as well, but who cares. Same regarding the rounded cables, color is not important.
Clevor, can you do me a favour ? If you still have the 1.2 and 2.0 rev. of 4PCA3+, can you tell me if there is any performance difference between the two ?
PS. As for OCing, as strange as it may seem, I've heard of many 4PCA3+ users that can take their boards to 300MHz FSB and above.
Well, if the AGP/PCI lock won't work, then why not just set AGP/PCI manually to 68/34 or something ? Wouldn't that work ?
Here's some more stuff about that agp/pci lock issue:
http://forum.oc-forums.com/vb/showth...y&pagenumber=2
Thanks.
I heard that manually setting it didn't work. Hopefully my mobo will be here soon so that I can verify all this stuff...
Some of the guys here have good luck with Epox boards (I would say :)):
http://holicho.lib.net/wcpuidv3/wcpuidv3.htm
Maybe the agp/pci bug doesn't affect everyone, or isn't realy that big of a deal...I could have been pretty high on that list with a 2.4c, but the 2.6c I should still be close to the top30...
I like the a7n8x @ 277 fsb...not to shabby...
I was looking at a couple of 1M SuperPI runs and I got a 40 second run on the 4PCA3+ at just 277 fsb (3.35 gig), 5:4, DDR443, 2-2-2-5. That would put me just under the guys running 300+ fsb/3.6+ gig! The closest P4 guy to me was running 3.5 gig I think. Either that, or the list must not have been updated recently.
That is cool...I will have to run that @4ghz in a week :D
I notice two guys were running Win98SE for SuperPI (must be the same guy). I dunno for sure, but I get 30' 16M SuperPI runs in Win98SE and yet in WinXP times drop down to 16-17' :slobber:. Yet my AMD rigs will net me 16-17' times even in Win98SE :confused:. I gotta check this again.
amd rapes in super pi...not sure about the os difference though
Could you tell me where exactly do you measure Vcore? On the MOSFETs?Quote:
Originally posted by MCWB
Guys, don't trust the BIOS/Winbond monitor/MBM/anything else, trust a multimeter. ;) If you actually measure the Vcore under load on the rev 1.x 4PCA3+ it's 1.58 V when set to 1.60 V, nowhere near as bad as the 1.52-1.53 it reports. I'd wager that this is the same for the rev 2.0. :)
Thanks :-)) But it still remains unclear to me how to measure Vcore. I tried on the mosfets, but the values were too off to be true. I guess i must measure somewhere on the voltage regulator chip, but dont know where. Anyone, any idea?
What kind of bios du you use guy`s
And why are you using it ?
Best Regards
Fosco
I just got the newest bios. There aren't realy enough bios's to have alot of different choices.
And what the's newest BIOS ?
it is like 2 months old...just go check epox.com