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Unusually high MCH voltage for DDR2-8500?

post #1 of 6
Thread Starter 
Today, I tried running my G.Skill PK's at 533mhz with my E6750 at 3400mhz. My processor is perfectly stable at 1.265 volts at that 3.4. I couldn't get my system to pass a Prime95 run for over an hour until I raised my MCH voltage all the way to 1.64v from the stock 1.25v. I don't think its the RAM since I gave it the specified voltage and I am still running at rated speeds. Is it my motherboard or is this normal? I have my RAM synced to my FSB (1:1) at 425 now with 1.25 MCH and it's been stable for over an hour now. Anyone else have any idea what's going on?
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Intel Core i5 2500K @ 4.5ghz (1.29v) Asus P8P67 XFX HD 6870 Dual Fan 2x4GB Corsair Vengeance DDR3 1600 
Hard DriveOptical DriveCoolingOS
120gb Kingston HyperX 3k SSD, 1TB Samsung F3 LITE-ON DVD+/-RW 24X Corsair H70 Windows 7 Ultimate 64-bit 
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Qnix QX2710 Logitech Illuminated Keyboard Antec Truepower New 750W Antec 300 
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post #2 of 6
WAY WAY to high IMO i dont see why you dont just raise the Vcore
    
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i7 2600k 5000mhz(so far) ASUS MAXIMUS IV EXTREME msi 6970 and 2 6950's Mushkin Enhanced Blackline 2133mhz 
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Force GT(os) M4 64gb(games) f3 1tb(other) Samsung Windows 7 64bit Samsung BX2450 
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nope! 
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i7 2600k 5000mhz(so far) ASUS MAXIMUS IV EXTREME msi 6970 and 2 6950's Mushkin Enhanced Blackline 2133mhz 
Hard DriveOptical DriveOSMonitor
Force GT(os) M4 64gb(games) f3 1tb(other) Samsung Windows 7 64bit Samsung BX2450 
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Black widow XFX ProSeries 1050W PSU 80+Gold  Corsair 700D Deathadder 
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nope! 
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post #3 of 6
1.64V
thats quite high,touch your NB heatsink it should be toasting by now.

edit:wait you have it stable now at 1.25V? did you have RAM asynched before or at some other multiplier?
Edited by gamervivek - 7/6/08 at 10:52pm
    
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post #4 of 6
Thread Starter 
The processor is fine. It's still running at the same speed just fine. My RAM was running 1:1.25 earlier and it was impossible to get stable. At 1:1 at a lower speed, it is running great. Really strange. I didn't touch the heatsink then but I'm sure it was extremely hot, which is why I turned it back down.
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K @ 4.5ghz (1.29v) Asus P8P67 XFX HD 6870 Dual Fan 2x4GB Corsair Vengeance DDR3 1600 
Hard DriveOptical DriveCoolingOS
120gb Kingston HyperX 3k SSD, 1TB Samsung F3 LITE-ON DVD+/-RW 24X Corsair H70 Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Qnix QX2710 Logitech Illuminated Keyboard Antec Truepower New 750W Antec 300 
MouseOther
Logitech G500 Lamptron FC4 Fan Controller 
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My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K @ 4.5ghz (1.29v) Asus P8P67 XFX HD 6870 Dual Fan 2x4GB Corsair Vengeance DDR3 1600 
Hard DriveOptical DriveCoolingOS
120gb Kingston HyperX 3k SSD, 1TB Samsung F3 LITE-ON DVD+/-RW 24X Corsair H70 Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Qnix QX2710 Logitech Illuminated Keyboard Antec Truepower New 750W Antec 300 
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Logitech G500 Lamptron FC4 Fan Controller 
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post #5 of 6
Your board could have set an incorrect tRD or clock skew values for the other ratio, necessitating an abnormally high voltage to remain stable.

1.65v can be done 24/7, but not with stock NB cooling.
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CPUMotherboardGraphicsRAM
5820K @ 4.3/3.6GHz core/uncore, 1.225/1.2v Gigabyte X99 SOC Champion (F22n) 2x Sapphire R9 290X Tri-X OC New Edition (10036... 4x4GiB Crucial @ 2667, 12-11-12-27-T1, 1.37v 
Hard DriveHard DriveHard DriveCooling
Plextor M6e 128GB (fw 1.05) M.2 (PCI-E 2.0 2x) 2x Crucial M4 256GB 4x WD Scorpio Black 500GB Cooler Master Nepton 280L 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 BenQ BL3200PT Filco Majestouch Tenkeyless (MX Brown) Corsair RM1000x 
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Fractal Design Define R4 Logitech G402 Realtek ALC1150 + M-Audio AV40 
CPUMotherboardGraphicsRAM
X5670 @ 4.4/3.2GHz core/uncore, 1.36 vcore, 1.2... Gigabyte X58A-UD5 r2.0 w/FF3mod10 BIOS Reference R9 290X w/Stilt's MLU 1000e / 1375m E... 2x Samsung MV-3V4G3D/US @ 2000, 10-11-11-30-T1,... 
RAMHard DriveHard DriveHard Drive
1x Crucial BLT4G3D1608ET3LX0 @ 2000, 10-11-11-3... OCZ (Toshiba) Trion 150 120GB Hyundai Sapphire 120GB 3x Hitachi Deskstar 7k1000.C 1TB 
CoolingOSPowerCase
Noctua NH-D14 Windows 7 Pro x64 SP1 Antec TP-750 Fractal Design R5 
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ASUS Xonar DS 
CPUMotherboardGraphicsRAM
i7-6800K @ 4.3/3.5GHz core/uncore, 1.36/1.2v ASRock X99 OC Formula (P3.10) GTX 780 (temporary) 4x4GiB Crucial DDR4-2400 @ 11-13-12-28-T2, 1.33v 
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Primary
(15 items)
 
Secondary
(13 items)
 
In progress
(10 items)
 
CPUMotherboardGraphicsRAM
5820K @ 4.3/3.6GHz core/uncore, 1.225/1.2v Gigabyte X99 SOC Champion (F22n) 2x Sapphire R9 290X Tri-X OC New Edition (10036... 4x4GiB Crucial @ 2667, 12-11-12-27-T1, 1.37v 
Hard DriveHard DriveHard DriveCooling
Plextor M6e 128GB (fw 1.05) M.2 (PCI-E 2.0 2x) 2x Crucial M4 256GB 4x WD Scorpio Black 500GB Cooler Master Nepton 280L 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 BenQ BL3200PT Filco Majestouch Tenkeyless (MX Brown) Corsair RM1000x 
CaseMouseAudio
Fractal Design Define R4 Logitech G402 Realtek ALC1150 + M-Audio AV40 
CPUMotherboardGraphicsRAM
X5670 @ 4.4/3.2GHz core/uncore, 1.36 vcore, 1.2... Gigabyte X58A-UD5 r2.0 w/FF3mod10 BIOS Reference R9 290X w/Stilt's MLU 1000e / 1375m E... 2x Samsung MV-3V4G3D/US @ 2000, 10-11-11-30-T1,... 
RAMHard DriveHard DriveHard Drive
1x Crucial BLT4G3D1608ET3LX0 @ 2000, 10-11-11-3... OCZ (Toshiba) Trion 150 120GB Hyundai Sapphire 120GB 3x Hitachi Deskstar 7k1000.C 1TB 
CoolingOSPowerCase
Noctua NH-D14 Windows 7 Pro x64 SP1 Antec TP-750 Fractal Design R5 
Audio
ASUS Xonar DS 
CPUMotherboardGraphicsRAM
i7-6800K @ 4.3/3.5GHz core/uncore, 1.36/1.2v ASRock X99 OC Formula (P3.10) GTX 780 (temporary) 4x4GiB Crucial DDR4-2400 @ 11-13-12-28-T2, 1.33v 
Hard DriveHard DriveCoolingOS
Intel 600p 256GB NVMe 2x HGST Travelstar 7k1000 1TB Corsair H55 (temporary) Windows Server 2016 Datacenter 
PowerCase
Seasonic SS-860XP2 Corsair Carbide Air 540 
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post #6 of 6
Thread Starter 
I'll see if its the ratio's fault once I overclock some more with the RAM asynced to the FSB.
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K @ 4.5ghz (1.29v) Asus P8P67 XFX HD 6870 Dual Fan 2x4GB Corsair Vengeance DDR3 1600 
Hard DriveOptical DriveCoolingOS
120gb Kingston HyperX 3k SSD, 1TB Samsung F3 LITE-ON DVD+/-RW 24X Corsair H70 Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Qnix QX2710 Logitech Illuminated Keyboard Antec Truepower New 750W Antec 300 
MouseOther
Logitech G500 Lamptron FC4 Fan Controller 
  hide details  
Reply
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K @ 4.5ghz (1.29v) Asus P8P67 XFX HD 6870 Dual Fan 2x4GB Corsair Vengeance DDR3 1600 
Hard DriveOptical DriveCoolingOS
120gb Kingston HyperX 3k SSD, 1TB Samsung F3 LITE-ON DVD+/-RW 24X Corsair H70 Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Qnix QX2710 Logitech Illuminated Keyboard Antec Truepower New 750W Antec 300 
MouseOther
Logitech G500 Lamptron FC4 Fan Controller 
  hide details  
Reply
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