[SOLVED] 800MHz RAM runs at 533MHz

yours_majesty · 08-17-2009, 12:56 PM

I have an Intel S975XBX2 motherboard, it was running OCZ Platinum Edition 4x1GB DDR2 PC2 6400 RAM (4-4-4-15) at 800MHz until 2 weeks back, then I replaced this RAM with OCZ ATi Edition 4x1GB (4-4-4-15) to run with 2 ATi Radeon HD4850 cards, after I installed OCZ ATi Edition, the RAM works at 533MHz, checked the system FSB and it was running at 1066MHz as I have Intel Xeon X3220 2.40GHz Quad Core processor but memory bus speed is 533MHz.

Can anyone suggest why its running at slower speed, though my motherboard supports 800MHz RAM and it was running OCZ Platinum Edition at rated speed of 800MHz.
Can anyone suggest how to make OCZ ATi Edition RAM run at 800MHz bus speed?

**Tyree** · 08-17-2009, 02:41 PM

Have you tried manually setting the speed in the Bios?
Filling all the RAM slots on a Mobo can cause Voltage issues (a 2X2GB pair would have been a better choice) but i doubt if that is your problem.
Where are you getting the 533MHz readings?

**wrench97** · 08-17-2009, 02:44 PM

What does CPUz give as the Dram Frequency on the memory tab and what are the sticks rated for(Check all the slots) on the SPD tab?
http://www.cpuid.com/cpuz.php

yours_majesty · 08-17-2009, 03:06 PM

I get 533MHz in BIOS and in CPU-Z it shows 266MHz, which means its running in dual channel mode, I did not make any changes to BIOS, its configured to run in automatic mode in BIOS.

**Tyree** · 08-17-2009, 03:10 PM

CPU-Z is showing the same as the Bios so I would say you would have to step it up in the Bios.
Could you post the CPU-Z image of the CPU and the RAM?

yours_majesty · 08-17-2009, 03:47 PM

Yes I will, but this will take few hours as right now I'm in my office, upload the images when I get back home.

yours_majesty · 08-18-2009, 12:20 AM

Here are the screen shots of CPU-Z ...

yours_majesty · 08-18-2009, 12:21 AM

More screen shots ...

yours_majesty · 08-18-2009, 12:22 AM

Remaining screen shots ...

**Tyree** · 08-18-2009, 02:57 PM

Try removing two of the sticks.

yours_majesty · 08-18-2009, 03:56 PM

I just wish to know, if its related in anyway to ATi graphics cards, as right now I have a nVidia card installed, I have 2 Radeon HD4850 but I have not installed them till yet.

**wrench97** · 08-18-2009, 04:04 PM

Not it will not be related to the graphics cards.

yours_majesty · 08-19-2009, 12:57 AM

I tried 2 sticks each on different slots (channel A & B), but it did not work out, I manually selected 800MHz in the BIOS, only then it shows memory running at 800MHz (with CPU-Z as 400MHz, FSB:DRAM = 2:3)

**speedster123** · 08-19-2009, 05:37 AM

Return the ram for a matched pair of 2 gig sticks.

**Tyree** · 08-19-2009, 08:35 AM

Quote:

Originally Posted by yours_majesty

I tried 2 sticks each on different slots (channel A & B), but it did not work out, I manually selected 800MHz in the BIOS, only then it shows memory running at 800MHz (with CPU-Z as 400MHz, FSB:DRAM = 2:3)

That's what it should be running at.

yours_majesty · 08-19-2009, 09:09 AM

Quote:

Originally Posted by speedster123

Return the ram for a matched pair of 2 gig sticks.

Does it mean... its not a matched pair?

**Tyree** · 08-19-2009, 09:43 AM

I believe Team Mate speedster123 meant to use a matched pair 2 X 2GB instead of the 4 X 1 GB sticks. Filling all of the RAM slots on a mobo can cause voltage issues.
You manually selected 800MHz in the BIOS and the RAM shows a running at 800MHz. Wasn't that the goal?

yours_majesty · 08-19-2009, 06:56 PM

Yes, true, but earlier RAM was running at 800MHz in automatic mode in BIOS and it was 4 sticks of OCZ Platinum Edition.
What made me worried was, why this pair could not run at maximum rated speed in automatic mode when all the specs were almost same (the amount & the timings of the memory).

Anyway, thanks all of you for your great support.

MODS, please close the thread as the aim of this thread has been achieved.

Phædrus2401 · 08-19-2009, 07:37 PM

Go up to the top, select "Thread Tools", "Thread solved"

08-17-2009, 12:56 PM	#1 (permalink)
yours_majesty Registered User Join Date: Aug 2009 Posts: 10 OS: Vista	[SOLVED] 800MHz RAM runs at 533MHz I have an Intel S975XBX2 motherboard, it was running OCZ Platinum Edition 4x1GB DDR2 PC2 6400 RAM (4-4-4-15) at 800MHz until 2 weeks back, then I replaced this RAM with OCZ ATi Edition 4x1GB (4-4-4-15) to run with 2 ATi Radeon HD4850 cards, after I installed OCZ ATi Edition, the RAM works at 533MHz, checked the system FSB and it was running at 1066MHz as I have Intel Xeon X3220 2.40GHz Quad Core processor but memory bus speed is 533MHz. Can anyone suggest why its running at slower speed, though my motherboard supports 800MHz RAM and it was running OCZ Platinum Edition at rated speed of 800MHz. Can anyone suggest how to make OCZ ATi Edition RAM run at 800MHz bus speed? Last edited by yours_majesty; 08-17-2009 at 12:58 PM.

08-17-2009, 02:41 PM	#2 (permalink)
Tyree Mentor Hardware Team Join Date: May 2009 Location: Illinois Posts: 5,490 OS: XP Pro-7RC-Mandriva My System	Re: 800MHz RAM runs at 533MHz Have you tried manually setting the speed in the Bios? Filling all the RAM slots on a Mobo can cause Voltage issues (a 2X2GB pair would have been a better choice) but i doubt if that is your problem. Where are you getting the 533MHz readings? __________________ Posting your PC specs will help us to help you quicker and more efficiently.

08-17-2009, 02:44 PM	#3 (permalink)
wrench97 Moderator, Hardware Team Join Date: May 2008 Location: S.E. Pennsylvania Posts: 18,444 OS: Win7	Re: 800MHz RAM runs at 533MHz What does CPUz give as the Dram Frequency on the memory tab and what are the sticks rated for(Check all the slots) on the SPD tab? http://www.cpuid.com/cpuz.php __________________ Power Supply and Selection

08-17-2009, 03:06 PM	#4 (permalink)
yours_majesty Registered User Join Date: Aug 2009 Posts: 10 OS: Vista	Re: 800MHz RAM runs at 533MHz I get 533MHz in BIOS and in CPU-Z it shows 266MHz, which means its running in dual channel mode, I did not make any changes to BIOS, its configured to run in automatic mode in BIOS. Last edited by yours_majesty; 08-17-2009 at 03:07 PM.

08-17-2009, 03:10 PM	#5 (permalink)
Tyree Mentor Hardware Team Join Date: May 2009 Location: Illinois Posts: 5,490 OS: XP Pro-7RC-Mandriva My System	Re: 800MHz RAM runs at 533MHz CPU-Z is showing the same as the Bios so I would say you would have to step it up in the Bios. Could you post the CPU-Z image of the CPU and the RAM? __________________ Posting your PC specs will help us to help you quicker and more efficiently.

08-17-2009, 03:47 PM	#6 (permalink)
yours_majesty Registered User Join Date: Aug 2009 Posts: 10 OS: Vista	Re: 800MHz RAM runs at 533MHz Yes I will, but this will take few hours as right now I'm in my office, upload the images when I get back home.

08-18-2009, 02:57 PM	#10 (permalink)
Tyree Mentor Hardware Team Join Date: May 2009 Location: Illinois Posts: 5,490 OS: XP Pro-7RC-Mandriva My System	Re: 800MHz RAM runs at 533MHz Try removing two of the sticks. __________________ Posting your PC specs will help us to help you quicker and more efficiently.

08-18-2009, 03:56 PM	#11 (permalink)
yours_majesty Registered User Join Date: Aug 2009 Posts: 10 OS: Vista	Re: 800MHz RAM runs at 533MHz I just wish to know, if its related in anyway to ATi graphics cards, as right now I have a nVidia card installed, I have 2 Radeon HD4850 but I have not installed them till yet. __________________ Intel S975XBX2\| Xeon 2.40GHz Quad Core\| Intel Extreme Cooling\| 4x1GB OCZ ATi Edition\| 2xATi Radeon HD4850 CrossFire\| M-Audio Revolution 7.1\| Hauppauge WinTV HVR 1300 with MCE Remote\| Sony 20X DVD-RW with Light Scribe\| Cooler Master Elite 332 with Real Power 600W\| Acer AL1916W\| Edifier 2.1\| Microsoft Optical Desktop\|

08-18-2009, 04:04 PM	#12 (permalink)
wrench97 Moderator, Hardware Team Join Date: May 2008 Location: S.E. Pennsylvania Posts: 18,444 OS: Win7	Re: 800MHz RAM runs at 533MHz Not it will not be related to the graphics cards. __________________ Power Supply and Selection

08-19-2009, 12:57 AM	#13 (permalink)
yours_majesty Registered User Join Date: Aug 2009 Posts: 10 OS: Vista	Re: 800MHz RAM runs at 533MHz I tried 2 sticks each on different slots (channel A & B), but it did not work out, I manually selected 800MHz in the BIOS, only then it shows memory running at 800MHz (with CPU-Z as 400MHz, FSB:DRAM = 2:3) __________________ Intel S975XBX2\| Xeon 2.40GHz Quad Core\| Intel Extreme Cooling\| 4x1GB OCZ ATi Edition\| 2xATi Radeon HD4850 CrossFire\| M-Audio Revolution 7.1\| Hauppauge WinTV HVR 1300 with MCE Remote\| Sony 20X DVD-RW with Light Scribe\| Cooler Master Elite 332 with Real Power 600W\| Acer AL1916W\| Edifier 2.1\| Microsoft Optical Desktop\|

08-19-2009, 05:37 AM	#14 (permalink)
speedster123 Mentor Join Date: Oct 2006 Location: United States-New York-Long Island Posts: 5,212 OS: xp pro SP3	Re: 800MHz RAM runs at 533MHz Return the ram for a matched pair of 2 gig sticks. __________________ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

08-19-2009, 09:43 AM	#17 (permalink)
Tyree Mentor Hardware Team Join Date: May 2009 Location: Illinois Posts: 5,490 OS: XP Pro-7RC-Mandriva My System	Re: 800MHz RAM runs at 533MHz I believe Team Mate speedster123 meant to use a matched pair 2 X 2GB instead of the 4 X 1 GB sticks. Filling all of the RAM slots on a mobo can cause voltage issues. You manually selected 800MHz in the BIOS and the RAM shows a running at 800MHz. Wasn't that the goal? __________________ Posting your PC specs will help us to help you quicker and more efficiently.

08-19-2009, 06:56 PM	#18 (permalink)
yours_majesty Registered User Join Date: Aug 2009 Posts: 10 OS: Vista	Re: 800MHz RAM runs at 533MHz Yes, true, but earlier RAM was running at 800MHz in automatic mode in BIOS and it was 4 sticks of OCZ Platinum Edition. What made me worried was, why this pair could not run at maximum rated speed in automatic mode when all the specs were almost same (the amount & the timings of the memory). Anyway, thanks all of you for your great support. MODS, please close the thread as the aim of this thread has been achieved. __________________ Intel S975XBX2\| Xeon 2.40GHz Quad Core\| Intel Extreme Cooling\| 4x1GB OCZ ATi Edition\| 2xATi Radeon HD4850 CrossFire\| M-Audio Revolution 7.1\| Hauppauge WinTV HVR 1300 with MCE Remote\| Sony 20X DVD-RW with Light Scribe\| Cooler Master Elite 332 with Real Power 600W\| Acer AL1916W\| Edifier 2.1\| Microsoft Optical Desktop\|

08-19-2009, 07:37 PM	#19 (permalink)
Phædrus2401 Hardware Tech Team Join Date: Mar 2009 Location: New Orleans Posts: 3,744 OS: Vista Ultimate x64 SP1 + Ubuntu 9.04 My System	Re: 800MHz RAM runs at 533MHz Go up to the top, select "Thread Tools", "Thread solved" __________________ Good PSU brands: Corsair, SeaSonic, CWT, PC Power and Cooling, Thermaltake Toughpower, CoolerMaster Real Power Pro On 80+ Certification - PSU Information and Selection - Power Supply Myths You don't get what you don't pay for.