975X Power Up Edition + 800MHZ Ram

Greetings everyone
975X power up edition mobo, just got Corsair XMS2 6400 Ram, however the ram is not running at 6400/800mhz, but instead running at 667MHZ. I've reset my bios and still no change. Any suggestions on why this is?

Quote from: Jack the Newbie on 04-August-07, 23:00:21
It would be interesting to really verify that.
Have a look at this list as well:
http://ramlist.ath.cx/ddr2/
Ok, Let's sum it up then
First check this thread on the OCZ forum http://www.ocztechnologyforum.com/forum/showthread.php?t=25766&highlight=msi+975x+platinum+powerup+edition
Viktor92 first used OCZ Gold DDR2 800, but then he couldn't post his pc. These modules have Powerchip chips.
He then used OCZ DDR2 667, but couldn't get pasted 310Mhz FSB. These modules have Micron D9DQT (BT-3) chips, these are no longer in production
He then replace the OCZ modules with G. Skill DDR2 800 Mhz modules which have for the most part Micron D9 chips or ProMOS 6-layer PCB. He could set his FSB to 333Mhz and run it stable.
Now Mushkin PC2-6400 HP2 (2x2GB) has either Micron D9HBD (B7-37E) Brainpower PCB or Micron D9GSV (B7-3) Brainpower PCB on it.
Jack, you have Micron D9GMH (B6-3) 6-layer PCB chips, Micron D9GCT (B6-37E) (some) 6-layer PCB or Elpida AG-6E-E (before 05/2006) 6-layer PCB on your G.Skill-Kit (F2-6400PHU2-2GBHZ) memory and have the FSb on 346Mhz so that type of memory works ok.
*edit: Just saw Viktor92 his post, thanks man! He has G. Skill F2-6400CL4D-2GBPK and those also have have ProMOS 6-layer PCB chips on it.*
Finally I use GEIL PC26400 Ultra modules and those have either Aeneon AET93F30D or Elpida chips on it. I can't get passed the 310Mhz FSB so these are a no go for overclockers.
So if you can reach a higher FSB than 310Mhz with the above Mushkin modules or with G. Skill modules or any other modules with Micron D9 chips or ProMOS 6-layer PCB chips on it then you could conclude that those modules are the best to go with this board. Do you agree with me?
btw, I asked some techsupport guy of OCZ to test 4GB D/C Kit PN - OCZ2G8004GK and 4GB D/C Kit PN - OCZ2P8004GK memory kits for me to see if they work stable with a FSB higher than 310Mhz.
Hopefully I will get an answer from him.

Similar Messages

MOVED: 975X Power Up Edition + 800MHZ Ram

This topic has been moved to Overclockers & Modding Corner.
https://forum-en.msi.com/index.php?topic=110102.0

Quote from: Jack the Newbie on 04-August-07, 23:00:21
It would be interesting to really verify that.
Have a look at this list as well:
http://ramlist.ath.cx/ddr2/
Ok, Let's sum it up then
First check this thread on the OCZ forum http://www.ocztechnologyforum.com/forum/showthread.php?t=25766&highlight=msi+975x+platinum+powerup+edition
Viktor92 first used OCZ Gold DDR2 800, but then he couldn't post his pc. These modules have Powerchip chips.
He then used OCZ DDR2 667, but couldn't get pasted 310Mhz FSB. These modules have Micron D9DQT (BT-3) chips, these are no longer in production
He then replace the OCZ modules with G. Skill DDR2 800 Mhz modules which have for the most part Micron D9 chips or ProMOS 6-layer PCB. He could set his FSB to 333Mhz and run it stable.
Now Mushkin PC2-6400 HP2 (2x2GB) has either Micron D9HBD (B7-37E) Brainpower PCB or Micron D9GSV (B7-3) Brainpower PCB on it.
Jack, you have Micron D9GMH (B6-3) 6-layer PCB chips, Micron D9GCT (B6-37E) (some) 6-layer PCB or Elpida AG-6E-E (before 05/2006) 6-layer PCB on your G.Skill-Kit (F2-6400PHU2-2GBHZ) memory and have the FSb on 346Mhz so that type of memory works ok.
*edit: Just saw Viktor92 his post, thanks man! He has G. Skill F2-6400CL4D-2GBPK and those also have have ProMOS 6-layer PCB chips on it.*
Finally I use GEIL PC26400 Ultra modules and those have either Aeneon AET93F30D or Elpida chips on it. I can't get passed the 310Mhz FSB so these are a no go for overclockers.
So if you can reach a higher FSB than 310Mhz with the above Mushkin modules or with G. Skill modules or any other modules with Micron D9 chips or ProMOS 6-layer PCB chips on it then you could conclude that those modules are the best to go with this board. Do you agree with me?
btw, I asked some techsupport guy of OCZ to test 4GB D/C Kit PN - OCZ2G8004GK and 4GB D/C Kit PN - OCZ2P8004GK memory kits for me to see if they work stable with a FSB higher than 310Mhz.
Hopefully I will get an answer from him.

MS 7246 - 975X Power Up Edition (Problems)

Hi! I am from Argentina and 7 months ago I been purchase a MS 7246 board. Since that time, I never could run my memories a 800MHZ and I never could make that my motherboard detect correctly my memories speed. I been really disappointed with msi and this motherboard, and sincerely I lost confidence in the support and manufacturing process; nevertheless, I will try posting my problem in this thread hoping that somebody could help me.
Details about my hardware
-   MSI 975x power up edition (BIOS 7.6)
-   Intel core 2 6300
-   2GB RAM DDR2 800MHZ Dual channel (OCZ2P8001G) 4-5-4-15
-   Sapphire x850XT PCI-E
My mother detects my memories as 667Mhz. System do not boot If I set manually my memories at 800Mhz using this configurations:
-   CPU Clock X7
-   FSB/Speed (266*7 = 1862Mhz @ Default speed)
-   FSB & Memory ratio = 1.5 (Using “auto” here system detect memories speed @ 667Mhz)
-   Memories speed (266*1.5*2=798 Mhz)
-   Memories voltage 2.1v/2.2v
-   CPU Voltage 1.25v/1.3v
-   Other parameters are as default.
Things that I been tried
-   I been tried setting by SPD or manually memories latencies at 4-5-4-15 but mother does not boot or simply hang.
-   I been tried unsuccessfully increasing voltage to CPU or memories.
-   I been tried unsuccessfully updating my bios but again nothing.
I been read in internet that a loot! of people have similar problems. Some people fix those problems updating bios, but other people could not found a solution. Somebody could help me?
Thank you very much!
Eduardo

I had a look at your screenshots. The first thing I noticed is that you RAM modules have really strange SPD values:
Your stick's SPD values do not seem to comply with the JEDEC standard. Maybe this is an additional explanation to your problems causing BIOS and/or memory controller to be a little confused.
The second thing I noticed is the fact that the automatic frequency/multiplier and Core voltage adjustions done by the C1E feature is now working properly:
As you can see on the pictures I took from your screenshots, VCore and multiplier are now changing. That means, that the feature is working properly. If you close all background applications and running programs and leave only CPU-Z running, Core Voltage should drop to a certain minimum level and stay there with the multiplier set to x6.
The fact that C1E is working now, could explain the small drop in temperatures to about 48°-50°C @CPU cores.
Quote
Comments:
- Maybe cpu sensor is broken or bad? (I touch cpu cooler and is not so hot)
I really doubt that.
Quote
- The northbridge 975x definitely is hot. (But i suppose that your should have same situation here)
Yes, it has a tendency to get rather hot, especially if the system is overclocked.
Quote
- If I do not use my computer from 5 or 10 minutes temperatures decrease at 50ºc (core 0) and 48ºc (core 1), but not much more.
This is the kind of drop I expected with C1E working properly again.
Quote
¿Do you see something strange in my temperatures
Your temperaturer are elevated and a little higher than average, but not really dangerous after all. You should not worry yourself too much. The shutdown temperature of your CPU is around 85°C. So you still have some headroom.
However, if you find the time (and the money ) you should at least consider optimizing your cooling solution, either by re-installing the heatsink and applying new and better thermal paste and by tweaking the airflow that goes through your case, or even better by installing a more efficient heatsink to your CPU.
Quote
¿Do you see something strange in my temperatures and memories?
The issues you are experiencing with your memory are definately strange. As I said before, I believe the reason is a rather simple incompatibility issue. If this is caused by non-JEDEC SPD values or because your modules are of an older revision that use Elpida or Powerchip chips I don't know, but I am glad you were able to find a workaround.
/UPDATE
I googled around a little bit to find more information on general issures with the particular kind of OCZ modules you are using (OCZ2P8001G). What I found was the following thread in the OCZ forum:
http://www.xtremesystems.org/forums/showthread.php?t=112411
If you find the time read a little bit around in it. The fact that this thread exists asking for user reports on success/problem stories with this memory, if a clear indication that it is not an issue that has to do with your particular mainboard alone. In case you find 10 spare minutes to read around in it, pay attention to what is said about the revision and the chips used on the sticks. Here are a few quotes from the thread. There are of course other voices as well, pointing to the chipset or the board in use. But there seem to be quite a few different boards by all brands involved. However, I dare to say that overall picture doesn't look to well for the modules:
Quote
Yea but if you RMA them you just get the same model back. I don't think it would solve anything (Unless they are giving out Rev2s?)
Quote
Well i've had nothing but problems with the 2 sets i've had. No one at OCZ informed me that i needed the rev2's to work how i want.
Quote
I'm pretty sure that OCZ gets the same Elpida chips from Samsung that other DIMM makers get. The only things specific to OCZ would be the PCB, SPD programming and speed binning.
Quote
That is what prompted Tony to suggest an RMA. That is how I know it is the ram having problems not the board.
Quote
If the ram won't do specified speeds, no matter what divider used, then off course something is wrong, but getting 4 sticks that stops at the exact same speeds is close to impossible. Send either myself or Ryder an email and we will sort you out. I will make sure you get an advanced shipment sent out today if you want.
Quote
All I really know about Rev. 1 ELP is that an OCZ rep told me it used the same Elpida chips as Gold but was higher binned. Rev. 2 uses different chips.
Quote
I don't know but IIRC, I read someone here post that they are using Micron D9xxx. Given the higher cost of rev. 2, that seems plausible enough.
Quote
If you are using Rev1, you are the first I've heard without problems.
Quote
I think the problem is rather isolated to only a group of people with bad sticks.

975X Power Up Edition & Zalman 7700 heatsink

I ordered a Zalman 7700 Heatsink and i have a 975X power up edition. I'm afraid this is not going to fit now, does anyone know if it does? I'm very concerned, I really wanted it to work.

Quote from: NrthnStar5 on 03-August-07, 01:04:00
I got it on no problem there, it is big. however I wanted to ask other users of this heatsink what their temps are. My CPU seems to idle around 37-39 C Degrees and under load will go up to 41-43 C Degrees. Fan setting is on the lowest. Is this normal? It's about the same as the stock heatsink. I did notice my case temp is quite a bit lower however which is nice and it's much quieter.
Your temps are normal.
Mine are idle at 33-37 C and 41-45 C under load with a Zalman 9700 and fan setting also on lowest, so there is nothing to worry about

975X Power Up Edition & Core 2 Duo E6600

Greetings,
I just got a new Intel Core 2 Duo for my MSI 975X Power Up edition =-) The reason I'm posting is i'm trying to Overclock my CPU. When i go into my bios and enter The Cell Menu, I go to the FSB Speed and up it to what I want. When I go to select save and Exit, the computer completely shuts off, like the power is cut from it. Then after about 3 seconds it starts up, and runs fine. The settings are saved and everything appears to runs stable.
My concern is, is it normal behavior for the computer to completely shut off when i save and exit the bios after changing the fsb speed on the CPU? To me it seems odd and I'm concerned if there is something wrong =-/ Any suggestions or experiences would be appreciated.

It all depends on the motherboard. When a motherboard cold boots it does more self-checks. How-Stuf-Works It so happens that the 975x forces a cold-boot when certain settigns are changed.

MSI 975X Power Up Edition and E6600 and DDR 800 MHZ Ram, NOT RIGHT SPEED.

I've just got my system up and running but it aint detecting the ram speed correctly or even the FSB on the CPU. I have included some pics to show you. sometimes at post it says 533, and sometimes 667. Any ideas?
I am running a E6600 and Crucial Ballistic DDR2 800 MHZ Memory.

Quote from: Maesus on 23-August-06, 01:00:49
MSI has an online Customer Service for you to send your issues or questions over. Usually it take few days to reply. This forum, is maintained by user, just like you and me. Happy users stay to help the unhappy users, and sharing experiences and valuable information. However, most if not all users don't make BIOS changes, modifying BIOS etc This is still mainly MSI's job.
The moderators have MSI contact where we can get faster response and more direct support. We do channel issues over here which we think is a true MSI issue. But 90% of the issue here are mainly user-setup problem. So we need to filter them out.
So, is this issue a MSI issue or a user-setup problem?
I just hope it will be fixed asap
I always loved msi motherboards because i never had problems. I don't like asus and the only motherboard available when i got my E6600 was the Asus P5N32-SLI SE Deluxe but the motherboard was bad (i hate asus even more now) so i could return it and change it for a msi motherboard The 975x powerd up edition And now (for the first time with msi) i have problems again. I just want my system to run like it should run

MSI 975x Power Up Edition, W-64bit, Dual Core Centre won't install

I have the following setup
Motherboard   MSI S775 Intel 975X ATx Audio Lan power Up Edition
Chip      Intel Core 2 Duo E6400 Socket 775 2.13GHz
Chip Fan     QuietPC SCYTHE Ninja-Plus Heatpipe
Grapics Card   XFX GeForce 8800GTX 768MB DDR3 PCIE Dual DVI TVo
Case      Thermaltake VA7000SWA Shark Aluminium Full Tower - Silver
Power Supply   Tagan 800W PSU - Dual Engine
Ram      Corsair Memory 2X1GB XMS2-6400 240 DIMM UNBUFFERED PRO DDR2 LED
Network Card   Buffalo Airstation 125* High-Speed Wireless Desktop PCI Adapter + AOSS
Hard Drive   2x Western Digital Caviar 250GB S300 16mb 7200rpm
DVD Writer   NEC 18X DVD+/+RW/12X RAM IDE LabelFlash Silver OEM
Windows      Microsoft Win XP Pro 64B OEM & Vista Upgrade Coupon
The problem I have is that when I try and install the Duo Core centre I get the following VBIOS error
Flash_MMIO_MAP DeviceIoControl error
twice before starting the Install wizard. The wizard works and asks me to reboot. After reboot the App won't work at all. I have uninstalled and installed a few times but to no avail. Is there anything else I can do.
Many Thanks

Quote from: DryHeat on 08-February-07, 04:45:21
Support OS: Windows XP/2000/Vista
Does not support x64 and you are better off without it.
Quote from: manitou153 on 02-June-07, 22:40:10
I have the same problem with this following error trying to install the Dual Core Center 2.0.0.6 : "runtime error. Could not call proc".
How can I fix the problem ? I use Windows Vista Ultimate Edition 64.
In other words, MSI Dual Core Center does not support Windows Vista 64. You can try CoreTemp, but again since you have x64 you need to read this: http://www.alcpu.com/forums/viewtopic.php?t=211

MSI 975X Power Up Edition V2.1 Issue Beside Overclocking After Flash New Bios

Hi all,
I hope I can get a lot of help here. I'm having a few issues with this board. I cannot find any thread that discuss other issue beside overclocking after you flash a new bios. Here are my problem:
1. I installed fresh WindowsXP with SP2. Windows cannot detect new usb device eventhough WindowsXP recognized the usb controller. If I plugin any usb device, windows does not detect a new device. I try to stick a USB flash and I can see the light for a few seconds but Windows cannot detect it. Before I upgrade the bios to version 715 (beta), I used usb flash to upgraded it. Now, the bios is not even boot from usb flash.
2. Other things that concern me, the southbridge chipset is really really hot. If you touch it long enough, it will burn you.
3. I cannot figure it out the front audio from manual book (JAUD1). Is any of you know where the mic needs to go?
Thanks

I removed the Big Typhoon from the MB and I replace with stock fan. I want to make sure the back plate from Big Typhoon doesn't cause any problem. When I bootup the windows, I saw WindowsXP recognized the USB device but it disappeared again. I took the MB out from the case and test it without a case. It stills does not recognize the usb. Somebody mention bad PSU(Power Supply Unit) may cause a lot wierd problem. I changed PSU from RaidMax Vocalno 630W to Ultra X-Finity 500W. I don't have a lot of stuff that require power. Do you think the PSU cause this issue?
This is list of my comp:
MSI 975x Platinum PowerUp Edition V2.1
Conroe E6600 Retail
Seagate 300G SATAII
Maxtor 120G IDE 100
Asus 16X DVD-ROM
NEC 3550A DVD-RW
Ultra X-Finity 500W
120 mm Fan
80 mm Fan
Big Typhoon
FYI: USB Controller and USB 2 Controller are enabled in BIOS.

975X Power Up Edition

I have just ordered this board, but I'm wondering what Power Up Edition actually means? I chose this card because it had som key features I needed, but I dont know what Power Up Edition has, that is different from other boards.
I've been searching around this forum, but I can't find a thread about it..
-can anyone enlighten me?
Thanks in advance

BTW: I have an additional question. This is probably very noobish, but I rather want to ask one time too many instead of pulling all my hair out trying to figure it out myself
Before I chose this MB, I was looking at some other MSI MoBos. I noticed that some of them had an 8-pin P4 12V power connector, but four pins were "hidden" by a small clip. Does that mean, that you can use a 4-pin connector even though the motherboard has an 8-pin connector? If so - is it the same with the 975X board? I don't see a clip covering four of the 8 P4 pins on this mobo.
Here's a link that shows the "clip".. - check out the close-up of the MB http://www.msi.com.tw/program/products/mainboard/mbd/pro_mbd_detail.php?UID=709
Does my question make sense? My english isn't the best

Msi 975x power up edition + qx6700 Compatible ???

Hi Everyone.
Im a newbie to these forums. Can you please advise ?
Ive just ordered my new build, news items on the net say the 925x power up edition is compatible with the qx6700 quad core but there is nothing on msi's web site about this. I did email msi but as yet have not got a reply.
Cheers Paul

Quote from: dejanos on 03-December-06, 21:01:09
Dude !
Stop it!
You will freak me out with your machine
Damn sure that it will be The ultimate extreme build.
8800 is the first Nvidia chip that will support DirectX 10, and if you want to, check out the latest release from Crytek called "Crysis",just to see the real power of directX 10.
Cheers
Well, my old agp p4 3gig system was ok but was not worth putting good money into an old sytem, so for the first time at 38, building my ultimate gaming rig. Incidently Komplett.co.uk are cheapest at moment on extreme chips. 640 quid for the extreme duo and 650 for qx6700.

Big Problems with 975x power up edition

I'm on my second board. I'm running a Celeron 3.06 stock and OCZ gold 6400 RAM at 2.0 V. After changing the memory divider to 1.25, the board refuses to post. It powers on, the fans come on then powers off. This cycle repeats itself over and over without me touching the power button. Clearing the CMOS doesn't help. I currently left the battery out overnight and also unplugged the motherboard. I haven't tried it again today.
Of course I have tried switching the power supply, processor and RAM. this doesn't help.
Other issues that I've noticed include LAN isn't always detected in Windows XP. in the bios, the +12V is reported as 13 with both my Enermax and Fortron power supplies.
this board in its current state is a pain.
Celeron 3.06
Fortron 600 W
OCZ Gold 6400 RAM
Sapphire Radeon 1900xt
Benq 1655 DVDR
Western digital IDE
Segate SATA HD x 2 (non RAID)

I had this problem after changing my ram ratio and voltage. Needless to say I was ready to cry
I ended up trying the following: Pulling wire from back.. no joy! Clear CMOS.. no joy! took memory sticks out and tried em in different slots.. no joy! Had a mug of tea.. very calming and refreshing Took graphics card and battery out because I was not sure the cmos clear switch was properly working, put it all back in and \o/ it booted albeit a bit shakey.
I reset bios settings and have not fiddled since.

975X Power Up Edition Hangs on "Initializing Hard Drive Controller"

Symptoms:
4 month old Corsair Force 3 120GB SSD drive would "hang" the system maybe 2-3x in the last month.
Upon reboot no boot device found. Power cable removed from PC, and plugged back in it would work fine.
I switched off my PC at 8am, come home at 5pm, switch on PC and no boot device found.
Remove power cable, problem persists.
Clear Cmos, problem persists.
Removed all other unnecessary hardware and tried different cables and ports, problem persists.
Reach conclusion SSD drive is dead.
Plug back in old Hard drive (Still fixed in bottom of PC, but not attached) and PC loads up fine.
Pc randomly restarts about 10x in the space of 24 hours, sometimes with the message no boot device found. (Power cable removal/plugging back in rectifies fault)
Now, problem persists also.
Remove all unnecessary hardware, and try again. Problem persists.
Clear CMOS.
Pc shows MSI splash screen, and hangs.
Removed even hard drive, same problem.
Checked D Bracket and I have RRGG which is "Initializing Hard Drive Controller" "This will initialize IDE drive and controller"
MOBO: MSI 975X Platinum V2.1
CPU: Core2Duo E6300 1.86Ghz
GFX: MSI N460GTX Cyclone 1GD5/OC
Memory: Corsair XMS2-6400 2048MB (X2)
PSU: Corsair TX650
HDD1: Corsair Force 3 120GB / HDD2: Seagate Barracuda 250GB
HDD3: Seagate Barracuda 1TB
HDD4: Seagate Barracuda 1TB
Currently have GFX, 1 Stick of ram, the CPU and its cooler plugged in, that's it.
Any suggestions? I've searched this forum but there aren't any real solutions, one was dead and required RMA'ed, another one depended on the PSU, and another one didn't have enough power to the PCI-E card. (GFX)

Quote
Plug back in old Hard drive (Still fixed in bottom of PC, but not attached) and PC loads up fine.
Pc randomly restarts about 10x in the space of 24 hours, sometimes with the message no boot device found. (Power cable removal/plugging back in rectifies fault)
Just to be sure on this: What you are saying is that currently, it does not matter what kind of device is attached (SSD, hard drive, optical drive), you get the ""Initializing Hard Drive Controller" "This will initialize IDE drive and controller"", even though if there are no SSDs, hard drives and optical drives connected to the system whatsoever?

MSI 975x Power Up Edition + OCZ Problem

Hello all,
Don't know if this is a common problem because I found some informaton about it yet I found no solution...
I got 2x2GB OCZ Reaper X memory:
http://www.overclockers.co.uk/showproduct.php?prodid=MY-105-OC
And
I have the following motherboard marketed as supporting 800mhz 2gb sticks and up to 8gb:
http://global.msi.com.tw/index.php?func=proddesc&maincat_no=1&prod_no=267
The problem is I was working with 512mb*2 corsair memory and decided to give a bit of an upgrade so i got that memory. And the motherboard won't post, it stays on for a few seconds and just turns off and on again.
I can't figure out the solution I tried putting voltage as high as 2.4 and manually inserting latency.
I really don't know what to do and I would really like to make them work.
please help!

Quote from: ivybat on 01-August-08, 04:37:23
I don't know how much digging you've done, but when the 975x Plat PUE boards just came out, it was a huge deal how notoriously incompatible OCZ was with MSI just on that board. I had some OCZ Platinum XTC sticks (rev1 RMAd to rev 2), and nothing worked with them.
Which explains why your Corsair RAM was working fine..
Yes, with my first set of OCZ 800 Gold, my 975x don't even post, and with the second 667 set I had a FSB wall of 320 mhz. Try Corsair or G.Skill memory, this memory works very well with the 975x.

975x Power Up Edition : Questions, Comments, and Concerns

My System:
Intel Core 2 Duo E6600 (@ 2.9ghz, @320mhz clock)
Mushkin DDR2-800 PC-6400 Memory @400mhz (x2... 1:1.25 multiplier)
ATi X1900 XT (512mb)
Is there a better way to get my memory to 800mhz? When I try and use different multipliers it just will not post, be it 1:1 or 1:1.33. When I change the voltage (be it core, or memory) I cannot post either, so there is no way I can tell if that is effective or even working. That is my only problem with this board, period, that my memory will not run at a proper speed.
Other than that, I love it. I have great faith in MSI.
When I was clocked to 3.1ghz (@350mhz clock) I could get as low as 16seconds for 1M super pi.
Thanks for any help, and if you want em, tell me where to post em, and I will.

Quote from: AngryUndead on 23-August-06, 05:33:32
just in making sure that everything runs as designed.
I'm pretty sure this is the first time you've used DDR2 ram, or at the very least the first time you've actually given any thought to the speeds and what it says on the box.
PC6400 = DDR2-800
DDR stands for Double Data Rate which means that the Mhz your ram is actually running at is half of 800 = 400Mhz. Therefore with your "320/400" you are already running at advertised speed.
If you want a quick way of working out all these PC5300, PC8000, PC6400 and what actual Mhz they're running at just divide by 16.
Eg PC8000/16 = 500Mhz, PC7200/16 = 450Mhz
This still applies with DDR1, eg PC4000/16 = 250Mhz, PC3200/16 = 200Mhz.
Don't just take my word for it, read the "Specification standards" on this page -> http://en.wikipedia.org/wiki/DDR2_SDRAM

MOVED: 975X Power Up Edition & Core 2 Duo E6600

This topic has been moved to Overclockers & Modding Corner.
https://forum-en.msi.com/index.php?topic=106234.0

It all depends on the motherboard. When a motherboard cold boots it does more self-checks. How-Stuf-Works It so happens that the 975x forces a cold-boot when certain settigns are changed.

975X Power Up Edition + 800MHZ Ram

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