I give up. I'm sticking at the 1:1 mem ratio at 160fsb. I tried those few things like turning the AGP/PCI ratios down, with no joy. The memory bandwidth is much better than my old system.
Jola, RAM Guy over at www.houseofhelp.com who is the Corsair guru for those forums posted that... Ok, ROFL, I just checked the thread and saw you already found it. Was going to link it for you.... here it is for others that haven't seen it:
RAM Guy responds about -V and XMS Issues
RAM Guy responds about -V and XMS Issues
Ahh...i dont know what to do know. I am so confused. i was thinking of getting the -V board cuz of what u said about the 333 ram, Jola. I wasn't really thinking about OC my stuff but the option is nice (nice bragging rights too 
) But achieving DDR400 sounds nice too. U think u can achieve DDR400 with the 2.26? I am gonna get that with Samsung RAM (PC2700 only though).
) But achieving DDR400 sounds nice too. U think u can achieve DDR400 with the 2.26? I am gonna get that with Samsung RAM (PC2700 only though).(Maybe) the -V board bears a better memory controller because of the integrated video controller, which uses the same memory source as the CPU. Better controller, that is to prevent (or minimize at least) the memory bottlenecks.
I could be wrong then =)
I could be wrong then =)
Detoyminador_
did you try playing with your DRAM timings? did you change your VDIMM i.e. to 2.7 or 2.9V?
did you try playing with your DRAM timings? did you change your VDIMM i.e. to 2.7 or 2.9V?
I have got the V now and am generally happy but still have some concerns (at least it is a lot better than my previous 8IEXP).
I am running my 1.8A at FSB=140MHz, 4:5 memory ratio, ie memory at 175MHz. But I have 512Mb XMS300C2 v1.1 and it will only run reliably at 2.5-3-3-6 and this stinks. My CPU doesn't seem to want to go over FSB=140 at anything under 1.7 volts, and I don't really want to go over that as it really starts heating up at that point. So I was hoping to run my memory aggressively in order to pick up speed there. But it won't.
Now I don't know whether Corsair just doesn't perform as they advertise, or whether it is a P4B533-V problem (maybe needs a new BIOS?). The lack of 3:4 is also a problem. I could live with slack memory settings if I could run it at a higher speed.
The problem is that with the present memory settings I could have bought cheap PC2700 for USD100 less!!!
I still have this suspicion that the P4B533-E is a better buy for overclocking, but when I bought the V the E's were not available, and I don't feel strong enough about this to send the V back.
If I want to get to 200MHz DDR, I may just have to get a 2.26B, they can easily run at FSB=160 which gives you 200Mhz at 4:5. If my Corsair will do this!
I am running my 1.8A at FSB=140MHz, 4:5 memory ratio, ie memory at 175MHz. But I have 512Mb XMS300C2 v1.1 and it will only run reliably at 2.5-3-3-6 and this stinks. My CPU doesn't seem to want to go over FSB=140 at anything under 1.7 volts, and I don't really want to go over that as it really starts heating up at that point. So I was hoping to run my memory aggressively in order to pick up speed there. But it won't.
Now I don't know whether Corsair just doesn't perform as they advertise, or whether it is a P4B533-V problem (maybe needs a new BIOS?). The lack of 3:4 is also a problem. I could live with slack memory settings if I could run it at a higher speed.
The problem is that with the present memory settings I could have bought cheap PC2700 for USD100 less!!!
I still have this suspicion that the P4B533-E is a better buy for overclocking, but when I bought the V the E's were not available, and I don't feel strong enough about this to send the V back.
If I want to get to 200MHz DDR, I may just have to get a 2.26B, they can easily run at FSB=160 which gives you 200Mhz at 4:5. If my Corsair will do this!
oh... that's DDR underclocking!
your XMS3000 is rated DDR370/CAS2/T1.
well, we all know that intel chipsets officially supports DDR266 only. or may be you still need to play with settings of your new board. or yes, probably updating the bios?
your XMS3000 is rated DDR370/CAS2/T1.
well, we all know that intel chipsets officially supports DDR266 only. or may be you still need to play with settings of your new board. or yes, probably updating the bios?
hey Jola, when u get ur whole comp up and running could u post some benchmarks so we have some idea how the -V compares to the -E board? Thanks.
I just saw on the thread in General Hardware that the first rev of the i845g boards won't support Intel's upcoming Hyperthreading; wheras, the i845e will support it with just a flash upgrade.
i just had a question. I am about to build a new comp and was deciding on a MB. I was thinking of the Asus P4B533-V originally, but then i recently read that there is no hyperthreading support on any 845G chipset boards. I think i would like to have that so i was thinking of maybe getting the Asus P4B533-E board, since it has the 845E chipset which will have hyperthread support with a future bios update. But then I saw the Abit IT7 and since I am currently using the Abit BH6 board and never had any probs with it, i was thinking of maybe going back to Abit again. I was wondering what u guys thought. Which board would u recommend? Thanks.
Hey everyone...
I'm not well versed in the "art" of overclocking, thus pardon my senility...
I just bought the ASUS P4S533 mainly because it's listed as a board that supports PC2700 (DDR333) RAM. If it weren't for that, I would have loved to get the P4B533 E or even the newer V board. However, reading all the posts above, it seems as though a lot of you guys are using PC2700 RAM on the B533 boards even though Spec-wise it only supports DDR266 RAM. Can anyone comment on this? Or better yet, answer this question:
Without overclocking, and assuming that I can use my PC2700 RAM on the B533 boards, will performance be the worse, the same or better than on the S533 board?
Thanks for any help/support!
I'm not well versed in the "art" of overclocking, thus pardon my senility...
I just bought the ASUS P4S533 mainly because it's listed as a board that supports PC2700 (DDR333) RAM. If it weren't for that, I would have loved to get the P4B533 E or even the newer V board. However, reading all the posts above, it seems as though a lot of you guys are using PC2700 RAM on the B533 boards even though Spec-wise it only supports DDR266 RAM. Can anyone comment on this? Or better yet, answer this question:
Without overclocking, and assuming that I can use my PC2700 RAM on the B533 boards, will performance be the worse, the same or better than on the S533 board?
Thanks for any help/support!
I have always thought that Asus boards are good for overclocking, until I have read this article: http://www.au-ja.org/review-p4-6-2002-1.phtml
It is in german, but even if you do not fully understand what they write, you will see when you look at the numbers (ram-timings), that he had the same problems with overclocking as you have with the Asus boards with Intel-chipset!
He had to rise the CPU voltage and the Ram voltage to be able to achieve the same overclocking results, and he also had to reduce memory timings!
It looks as if it is not a problem of the ram, it is a problem of the Asus boards. All other boards in this test had no problems with overclocking (using the same components!).
The E and the V versions behaved in this test very similar, both had the same problems.
So much for the overclockability of Asus boards...
In this test all other boards overclocked flawlessly, the with the Epox even 1.5 timing was possible.
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