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Prescott, anyone? P4P800SE problems

post #1 of 7
Thread Starter 
It's not a deal though, but I feel annoyed about it a little bit. I just get an P4P800SE in replace for my old P4P800-X (this one sucks). That's happened when I try to set Performance Mode to Turbo, restart and my system doesn't even boot up. . It also happen when I try to set latency for my Kingston RAM to 2-2-2-5 at FSB 133. I have this stick run at 2-2-2-5 fine on P4P800-X all the time with FSB below 166. Any ideas?
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P4 2.4E Prescott Asus P4P800-SE Inno3D FX5200 128MB Kingston DDR 512MB PC3200 
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Seagate Barracuda 250GB Sata II ASUS QueuTrac DVD-ROM Windows XP SP2 Samsung SyncMaster 450Nb 
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post #2 of 7
I wouldn't mess with the preformance mode on the memory. I have done that on numerous boards before (setting it to turbo, ect), and really have seen nothing but problems.

I'm not sure why your memory won't run 2-2-2-5 on this board, are you sure your giving it enough voltage? (probably doesn't take much).
    
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post #3 of 7
Some ram just doesn't work with some motherboards. I have a few sticks like that. See if you can upgrade the bios on the mb, that might help.
    
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post #4 of 7
Thread Starter 
Bios is the latest version I can find on Asus site. And about the performance mode, it's the only way to enable PAT in this mobo, and this is what I'm getting this mobo for, so...yeah, a little annoyed. But leave it at Std is fine at the moment.
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CPUMotherboardGraphicsRAM
P4 2.4E Prescott Asus P4P800-SE Inno3D FX5200 128MB Kingston DDR 512MB PC3200 
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Seagate Barracuda 250GB Sata II ASUS QueuTrac DVD-ROM Windows XP SP2 Samsung SyncMaster 450Nb 
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Mitsumi AcBel API4PC02 450W P3 oldies... Hytech Sable 6610 ^^ 
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My System
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CPUMotherboardGraphicsRAM
P4 2.4E Prescott Asus P4P800-SE Inno3D FX5200 128MB Kingston DDR 512MB PC3200 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 250GB Sata II ASUS QueuTrac DVD-ROM Windows XP SP2 Samsung SyncMaster 450Nb 
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Mitsumi AcBel API4PC02 450W P3 oldies... Hytech Sable 6610 ^^ 
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post #5 of 7
One thing linh, if you're overclocking, PAT will not work on that board once you start raising the fsb. And raising the fsb will do way more than PAT will anyway, for system performance.

On the P4P800 series, PAT can only be enabled if you are at 200fsb. Once you go a couple fsb over that, PAT is automatically disabled. You also have to run memory at 2CAS and have memory acceleration mode enabled, to run PAT I think, can't remember now exactly all the requirements.

But ya, if you OC, PAT turns off. Also, if you oc it, the advantages of the oc will far outweigh anything PAT would have given you anyway. Basically, the performance impact of PAT is very small, compared to just OC'ing the computer.

The P4C800 series were the ones with native PAT, since they used the 875 chipset, instead of the 865 like on the p4p800 series. So with that board you could OC and keep PAT on. Honestly there isn't that much difference though, and P4C800 was known to only have a very small performance edge over the P4P800, even with it's PAT.

But really linh, unless you have to run at stock speeds for some reason and can't OC, forget about PAT it's worthless on that board for an oc'er. It only gives a very small performance increase anyway, but who cares if you can only do it at stock speeds .
    
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post #6 of 7
Thread Starter 
Thx Roscoe for your very helpful post. But I have an question, my Pressy is 533Mhz, so it should running at stock speed of 133*18 -> FSB 133Mhz is < FSB 200Mhz -> PAT should be enabled for any FSB under 200, right?
Btw, just want to call out loud that I have join 1Ghz Oced club :'>
http://valid.x86-secret.com/show_oc?id=148035
Everybody cheers! \\:d/
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
P4 2.4E Prescott Asus P4P800-SE Inno3D FX5200 128MB Kingston DDR 512MB PC3200 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 250GB Sata II ASUS QueuTrac DVD-ROM Windows XP SP2 Samsung SyncMaster 450Nb 
KeyboardPowerCaseMouse
Mitsumi AcBel API4PC02 450W P3 oldies... Hytech Sable 6610 ^^ 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
P4 2.4E Prescott Asus P4P800-SE Inno3D FX5200 128MB Kingston DDR 512MB PC3200 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 250GB Sata II ASUS QueuTrac DVD-ROM Windows XP SP2 Samsung SyncMaster 450Nb 
KeyboardPowerCaseMouse
Mitsumi AcBel API4PC02 450W P3 oldies... Hytech Sable 6610 ^^ 
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post #7 of 7
Nice, good job linh .

About the fsb thing, I don't really know, that's a good question. I'm not sure if it disables only after 200fsb, or if there's an OC at all. I guess you'll have to try and see. I never really messed with PAT on my P4P800 E deluxe or SE boards. Once I saw how small a performance gain PAT got, and that you had to run stock speed to do it, I said forget it. I wanted to OC my cpu, and my OC got me alot more performance than screwing with PAT would have.

PAT never really existed in the i865 chipset, like your new board has. It was basically a "workaround" by Asus, to allow the 865 to do what it's big brother the i875 could. It's like a pseudo-PAT, I don't think it works the exact same way as the 875, they basically tricked it into working. The downfall is the 200fsb thing, makes it useless for anyone who OC's. But see if it works I guess. If you do bother to see about it, post back if it works, now I'm curious if you can do that .
    
CPUMotherboardGraphicsRAM
I7 920 D0 @4GHz Asus P6X58D-E evga gtx260 896mb core216 superclocked 6GB Kingston HyperX 
Hard DriveOptical DriveOSMonitor
4x WDRaptor 74G Raid0 BenQ DW1655 Win7 Home Premium 64bit Samsung 226BW 
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Logitech G15 Seasonic S12 600W Antec Nine Hundred Logitech G7 
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CPUMotherboardGraphicsRAM
I7 920 D0 @4GHz Asus P6X58D-E evga gtx260 896mb core216 superclocked 6GB Kingston HyperX 
Hard DriveOptical DriveOSMonitor
4x WDRaptor 74G Raid0 BenQ DW1655 Win7 Home Premium 64bit Samsung 226BW 
KeyboardPowerCaseMouse
Logitech G15 Seasonic S12 600W Antec Nine Hundred Logitech G7 
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