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4 gigs of ram in Asus P4P800-E Deluxe

post #1 of 14
Thread Starter 
I just added 2 more 1 gig modules of Corsair XMS 4000pt to my Asus P4P800-E Deluxe for a total of 4 gigs of ram and ran into a few problems. First of all the bios only detected 3 Gig of ram instead of 4. This isn't so much of a problem because I read in the manual for the motherboard that this is normal because of some (southbridge allocation). All the ram is still detected in programs like CPU-Z.....4096 mb of system ram. The problem I noticed is that the system is seriously slower since I've added the two extra modules. All the ram is exact matched pairs. Do you think I could be having a problem with the memory controller, and if so how could I go about solving this problem? Thanks.
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3.4 Pentium D @ 4.25 Ghz Asus P5P800 SE Media Center 2005 17 in LG LCD 
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post #2 of 14
P4P800 series motherboards do not support 4 gigs of ram.And anything more then 2 gigs is currently overkill.
EDIT: your also running in 2T mode which means your mem controller is working more making it slower.(I think, now watch one of the mods come in here and flame me)
    
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post #3 of 14
I am not a mod, but since you suggested it, I'll flame a little:

Flame 1: The board should support 4GB:
http://usa.asus.com/products4.aspx?m...=3&l2=12&l3=31

Flame 2: I'd like to see a CPU-Z screenshot before drawing conclusions about RAM speed and command rate. As far I know, only AMD knocks down to 2T with four slots filled (actually with 6 banks or more, which equals 3 or more double sided sticks). CAn you post a CPU-Z screeny with the memory tab shown?

And yes, I do agree that 4GB is way overkill. It likely does overburden the memory controller.
    
CPUMotherboardGraphicsRAM
E8400 @ 3.8 GHz DFI LANPARTY DK X38-T2R eVGA 8400GS 2GB Mushkin DDR2 800 (single stick) 
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250GB WD SATA None Windows XP Pro 32-bit HP Pavilion f1703 
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E8400 @ 3.8 GHz DFI LANPARTY DK X38-T2R eVGA 8400GS 2GB Mushkin DDR2 800 (single stick) 
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250GB WD SATA None Windows XP Pro 32-bit HP Pavilion f1703 
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post #4 of 14
No I don't think it does... the most you can have is 3GB. They basically lie to you and then write in the manual fine print that it can only detect 3GB. I have it right infront of me. This is BS and got me mad when I read it... but its not like I'm ever going to have more than 2gb on this board.

Here is the exact quote from the manual: "When all four sockets are populated with 1GB DIMMS (total 4GB), the system may detect only 3+GB ( a little less than 4GB) due to the Southbridge resource allocation."
Pg. 2-12

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3.0E E0 Presscott @ 3.85 P4P800 SE FX5500 256mb 128bit AGP 1GB DDR500 Gskill HZ 
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200GB Sata1.5 Maxtor Windows XP Home & Ubuntu 19in Flat Panel 400w FSP-PN 
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My System
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3.0E E0 Presscott @ 3.85 P4P800 SE FX5500 256mb 128bit AGP 1GB DDR500 Gskill HZ 
Hard DriveOSMonitorPower
200GB Sata1.5 Maxtor Windows XP Home & Ubuntu 19in Flat Panel 400w FSP-PN 
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Xoxide 5 in 1 combo 
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post #5 of 14
Yes I know that, and Demon pointed that out already. Just stating the board support 4GB, although not all of it is detected. Sorry for my incomplete post

Sell two gig of your RAM and get a nice sound card.
    
CPUMotherboardGraphicsRAM
E8400 @ 3.8 GHz DFI LANPARTY DK X38-T2R eVGA 8400GS 2GB Mushkin DDR2 800 (single stick) 
Hard DriveOptical DriveOSMonitor
250GB WD SATA None Windows XP Pro 32-bit HP Pavilion f1703 
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N/A Corsair HX520 Coolermaster Cavalier N/A 
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N/A 
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CPUMotherboardGraphicsRAM
E8400 @ 3.8 GHz DFI LANPARTY DK X38-T2R eVGA 8400GS 2GB Mushkin DDR2 800 (single stick) 
Hard DriveOptical DriveOSMonitor
250GB WD SATA None Windows XP Pro 32-bit HP Pavilion f1703 
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N/A Corsair HX520 Coolermaster Cavalier N/A 
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post #6 of 14
Yeah didn't see that sorry ... got carried away. You are right Chozart. Sell 2GB and get a sound card or if you want get another 100gb HD and run it in RAID 0. You'll see a big performance increase. Or better. save some money and in some time buy a new rig with PCI express and a conroe.
My System
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CPUMotherboardGraphicsRAM
3.0E E0 Presscott @ 3.85 P4P800 SE FX5500 256mb 128bit AGP 1GB DDR500 Gskill HZ 
Hard DriveOSMonitorPower
200GB Sata1.5 Maxtor Windows XP Home & Ubuntu 19in Flat Panel 400w FSP-PN 
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Xoxide 5 in 1 combo 
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My System
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CPUMotherboardGraphicsRAM
3.0E E0 Presscott @ 3.85 P4P800 SE FX5500 256mb 128bit AGP 1GB DDR500 Gskill HZ 
Hard DriveOSMonitorPower
200GB Sata1.5 Maxtor Windows XP Home & Ubuntu 19in Flat Panel 400w FSP-PN 
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Xoxide 5 in 1 combo 
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post #7 of 14
Thread Starter 
The board doesn't detect the 4 gigs in ram in the bios but it is all working. I'm at work right now but I will post a screen shot tomorrow when I get home. Powerleap.com showed it as having 4096 meg also. The manual says that the motherboard can't detect it but it does still work. I use this machine strictly for gaming and the video card I have plays any game on the market at 1280x1024 res with all the effects and graphics on maxium so I have no need to switch to PCI-Express yet. I play alot of BF2 and with all the graphics maxed out and res at 1280x1024 I an still getting 100 FPS.
My System
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CPUMotherboardOSMonitor
3.4 Pentium D @ 4.25 Ghz Asus P5P800 SE Media Center 2005 17 in LG LCD 
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Microsoft Multi-media Pro Ultra X-Connect 550 Watt Asus Vento (Red) Logitech Mx 518 
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My System
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CPUMotherboardOSMonitor
3.4 Pentium D @ 4.25 Ghz Asus P5P800 SE Media Center 2005 17 in LG LCD 
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Microsoft Multi-media Pro Ultra X-Connect 550 Watt Asus Vento (Red) Logitech Mx 518 
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post #8 of 14
The 4 GB is still overkill for your rig. It might work, but you did experience a slow-down, which is not surprising given the load on the memory controller. It's never a really good idea to push the motherboard to the limit of the max supported RAM.

For gaming, 2GB is more than enough. A nice soundcard (and maybe speakers/headphones) would really make your gaming experience more enjoyable.
    
CPUMotherboardGraphicsRAM
E8400 @ 3.8 GHz DFI LANPARTY DK X38-T2R eVGA 8400GS 2GB Mushkin DDR2 800 (single stick) 
Hard DriveOptical DriveOSMonitor
250GB WD SATA None Windows XP Pro 32-bit HP Pavilion f1703 
KeyboardPowerCaseMouse
N/A Corsair HX520 Coolermaster Cavalier N/A 
Mouse Pad
N/A 
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CPUMotherboardGraphicsRAM
E8400 @ 3.8 GHz DFI LANPARTY DK X38-T2R eVGA 8400GS 2GB Mushkin DDR2 800 (single stick) 
Hard DriveOptical DriveOSMonitor
250GB WD SATA None Windows XP Pro 32-bit HP Pavilion f1703 
KeyboardPowerCaseMouse
N/A Corsair HX520 Coolermaster Cavalier N/A 
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post #9 of 14
The only people with 4 sticks of RAM now are
a) those who had 2*512MB ram and wanted 2GB
b) people who thought more memory sticks are better
c) people who like to brag they have 4GB of ram

Right now there is no reason to have 4GB of RAM, I don't think windows even uses all 4GBs. Besides, 2GBs is all that is needed to stop windows from swapping the page-file

EDIT: right click my computers->Properties, and see how many GB of ram is detected by windows.
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post #10 of 14
Thread Starter 
I agree. The extra ram was kind of a test anyway. I just purchased to see if it would make any difference between 2 gig and 4 gig in the system. I have a few friends of mine who would be interested in buying the ram from me. As far as sound, I have a sound blaster audiology card but I don't have it installed because the intergrated audio sounds awesome to me. The speakers I have are the THX certified Altac-Lansing ADA885 4.1 surround sound. The only thing is that model doesn't come with a center channel........oh well. They still sound awesome.
My System
(13 items)
 
  
CPUMotherboardOSMonitor
3.4 Pentium D @ 4.25 Ghz Asus P5P800 SE Media Center 2005 17 in LG LCD 
KeyboardPowerCaseMouse
Microsoft Multi-media Pro Ultra X-Connect 550 Watt Asus Vento (Red) Logitech Mx 518 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardOSMonitor
3.4 Pentium D @ 4.25 Ghz Asus P5P800 SE Media Center 2005 17 in LG LCD 
KeyboardPowerCaseMouse
Microsoft Multi-media Pro Ultra X-Connect 550 Watt Asus Vento (Red) Logitech Mx 518 
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