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System failed due to memory overclocking

post #1 of 9
Thread Starter 
I Have an Asus A8VE-Deluxe, an AMD X2 64 3800+, and presently just on IGB stick of OCZ #OCZ5001024EBPE PC-4000.

I am trying to raise the clock speed of the ram buy bringing the clock up to 250 and dropping the devider to 9. When I do this my system fails.

The current timing is 3-3-2-7 and it seems to me I wasn't pushing this very hard. I disable the PCI pus sync to clock speed. Any suggestions?

Usually this CPU can be pushed up to about 2400Mhz but it will not let me do a clcok speed of 250 and a divider of 8 which is only 2000Mhz.

TIA
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Manchester X2 3800+ Asus A8V-E Deluxe Nvidia Quadro FX 1400 1 GB OCZ5001024EBPE PC-4000 
Hard DriveOSMonitorKeyboard
2 x 250 SATA WD Windows XP Pro SP2 Dual Viewsonic VX924 Logitech 
PowerCaseMouse
450 watt Enlight Lian Li PC V2000 Logitech MX1000 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Manchester X2 3800+ Asus A8V-E Deluxe Nvidia Quadro FX 1400 1 GB OCZ5001024EBPE PC-4000 
Hard DriveOSMonitorKeyboard
2 x 250 SATA WD Windows XP Pro SP2 Dual Viewsonic VX924 Logitech 
PowerCaseMouse
450 watt Enlight Lian Li PC V2000 Logitech MX1000 
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post #2 of 9
Are you running the RAM base speed at DDR400?
    
CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
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CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
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post #3 of 9
Thread Starter 
Thanks for getting back to me so quickly.

Yes, the RAM index is 200 MHz right now.

I did a little tweaking and have the FSB at 220 MHz and themultiplier at 10x.
The RAM is 2-3-2-7 1T but I was hoping to push the RAM to 300MHz while keeping the core below 2400 MHz.

OCZ said this stick will run 3-3-2-8 2T and I tried that with 275 MHz x8 but it choked.

Not sure what LDT is but it is set to AUTO. Voltage is 2.9
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Manchester X2 3800+ Asus A8V-E Deluxe Nvidia Quadro FX 1400 1 GB OCZ5001024EBPE PC-4000 
Hard DriveOSMonitorKeyboard
2 x 250 SATA WD Windows XP Pro SP2 Dual Viewsonic VX924 Logitech 
PowerCaseMouse
450 watt Enlight Lian Li PC V2000 Logitech MX1000 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Manchester X2 3800+ Asus A8V-E Deluxe Nvidia Quadro FX 1400 1 GB OCZ5001024EBPE PC-4000 
Hard DriveOSMonitorKeyboard
2 x 250 SATA WD Windows XP Pro SP2 Dual Viewsonic VX924 Logitech 
PowerCaseMouse
450 watt Enlight Lian Li PC V2000 Logitech MX1000 
  hide details  
Reply
post #4 of 9
LDT relates to the Memory Controler multiplyer and it's voltage adjustmens.
Most set it manually to 4x for up to 260MHz, beyond that use 3x.

Some quirks in the BIOS to address,
Disable anything that has "Spectrum" in it, Disable CnQ and Legacy USB support.

RAM timings can be weird. Not firmiliar with what timings will work with that memory, but the LDT multiplyer may have been effective in secrwing with the timings you chose, so try the LDT multiplyer in manual setting and see if that helps any. If necessary, up the LDT voltage a notch or two but only if it helps.
    
CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
  hide details  
Reply
post #5 of 9
You can drop the divider too like go 166.Do this manually.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6850 SLA,G0,@3.7 P5N32 SLi/680iSB=Jing ting/nb=spirit II[1203]bios] MSI 470 GTX[order on his way] 4 gig ocz Reapers pc 8500 
Hard DriveOSMonitorKeyboard
2 WD 250gig 16mb/raid 0\1 WD640 AALS 32MB win xp pro sp3/Windows 7 Beta LCD,22"=Samsung 2MS,226BW,52"samsung LN5A550 Thermaltake xaser 
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oczgamexstream700 wtt x blade/modded Razor deathadder thermaltake gamer pad/led 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6850 SLA,G0,@3.7 P5N32 SLi/680iSB=Jing ting/nb=spirit II[1203]bios] MSI 470 GTX[order on his way] 4 gig ocz Reapers pc 8500 
Hard DriveOSMonitorKeyboard
2 WD 250gig 16mb/raid 0\1 WD640 AALS 32MB win xp pro sp3/Windows 7 Beta LCD,22"=Samsung 2MS,226BW,52"samsung LN5A550 Thermaltake xaser 
PowerCaseMouseMouse Pad
oczgamexstream700 wtt x blade/modded Razor deathadder thermaltake gamer pad/led 
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post #6 of 9
Quote:
Originally Posted by alexisd View Post
You can drop the divider too like go 166.Do this manually.
Good point... that can allow the RAM to keep below it's max speed which beyond it will cause instability/crashes/no boot!
    
CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
  hide details  
Reply
post #7 of 9
Thread Starter 
Quote:
Originally Posted by alexisd View Post
You can drop the divider too like go 166.Do this manually.
On my Asus BIOS, that would be the LTD Bus freq. setting?

I notice that by disabling Spectrum and legacy USB support, and also locking LTD at 800MHz, I was able to fianlly get 250 FSB and a x9 muliplier. However, I have a question about the memory specs:

I RMA'ed my 1GB kit (2 x 512) and the RAM was 2-2-2-7. This new RAM PC-4000 is rated 3-3-2-8 at 500Mhz.

If I am only running the RAM at 250Mhz or 275Mhz, should I not be able to drop the CAS Laetncey to 2.0 or 2.5?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Manchester X2 3800+ Asus A8V-E Deluxe Nvidia Quadro FX 1400 1 GB OCZ5001024EBPE PC-4000 
Hard DriveOSMonitorKeyboard
2 x 250 SATA WD Windows XP Pro SP2 Dual Viewsonic VX924 Logitech 
PowerCaseMouse
450 watt Enlight Lian Li PC V2000 Logitech MX1000 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Manchester X2 3800+ Asus A8V-E Deluxe Nvidia Quadro FX 1400 1 GB OCZ5001024EBPE PC-4000 
Hard DriveOSMonitorKeyboard
2 x 250 SATA WD Windows XP Pro SP2 Dual Viewsonic VX924 Logitech 
PowerCaseMouse
450 watt Enlight Lian Li PC V2000 Logitech MX1000 
  hide details  
Reply
post #8 of 9
Thread Starter 
If this RAM is rated 500Mhz, do I not want the RAM running as fast as possible while keeping the CPU under 2400Mhz?

The CPU seems to be happy around 2350Mhz and the RAM runs at 200Mhz. I am not sure where I drop the base speed of the RAM (LDT?), but then I would need a large multiplier wouldn't I to get the RAM up to 300Mhz?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Manchester X2 3800+ Asus A8V-E Deluxe Nvidia Quadro FX 1400 1 GB OCZ5001024EBPE PC-4000 
Hard DriveOSMonitorKeyboard
2 x 250 SATA WD Windows XP Pro SP2 Dual Viewsonic VX924 Logitech 
PowerCaseMouse
450 watt Enlight Lian Li PC V2000 Logitech MX1000 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Manchester X2 3800+ Asus A8V-E Deluxe Nvidia Quadro FX 1400 1 GB OCZ5001024EBPE PC-4000 
Hard DriveOSMonitorKeyboard
2 x 250 SATA WD Windows XP Pro SP2 Dual Viewsonic VX924 Logitech 
PowerCaseMouse
450 watt Enlight Lian Li PC V2000 Logitech MX1000 
  hide details  
Reply
post #9 of 9
LDT = Lightening Data Transfer, changing this multiplier will move the HT Link up and down.

DRAM Divider = this is the divider for your RAM
Main Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel C2D E6700 Asus P5KPL-AM mATX Palit GTS250 2 x 2GB OCZ PC2-8500 
Hard DriveOptical DriveOSMonitor
Western Digital 500GB Pioneer DVD-RW Windows 7 Ultimate 64-bit Viewsonic VA2213w 
KeyboardPowerCaseMouse
Logitech Media Keyboard Deluxe 750W Thermaltake Toughpower Antec NSW4400 Logitech MX510 
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Main Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel C2D E6700 Asus P5KPL-AM mATX Palit GTS250 2 x 2GB OCZ PC2-8500 
Hard DriveOptical DriveOSMonitor
Western Digital 500GB Pioneer DVD-RW Windows 7 Ultimate 64-bit Viewsonic VA2213w 
KeyboardPowerCaseMouse
Logitech Media Keyboard Deluxe 750W Thermaltake Toughpower Antec NSW4400 Logitech MX510 
  hide details  
Reply
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