Question about Gigabyte GA-8I945P-G Motherboard

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Incorrect Memory Count

Hie , im using the 8i945P-G mobo and just recieved 4 (!) G.skill pc2-6400 1024 sticks ... wich is good so far. thwn i installed the first 3 the bios identifies them correctly and shows 3072MB of ram when i add the forth stick it increases the ram to 3400 ... i'v tried to change places of the sticks, use diferent combination and even tried it with a 3*1024 +1*512 ... still the bios says that i got 3400. the funny thing is that windows (xp64) shows 3250MB YET CPUz shows all the 4G correctly i'v updated the bios to it's latest (F11) version and still nothing *** i know that the Mobo supports ram up to 667Mhz and those are 800Mhz sticks *** but it suppose only to alow them down (and its realy good 4 OC coz the *** Mem runs @ it's natural speed when i'm using 250 FSB (3000@3700 Mhz) any idea what may cause this messup ???

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Re: Incorrect Memory Count

Due to standard PC architecture, a certain amount of memory is reserved for system usage and therefore the actual memory size is less than the stated amount. __For example, 4 GB of memory size will instead be shown as 3.xxGB memory during system startup.____To use a DDRII 667 memory module on the motherboard, you must install an 800/1066MHz FSB processor.____Please also refer to the image below

Posted on Jun 14, 2007

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Does the GA-8I945P-G supports the Core2duo Processor?

No since this is a older mobo the manufactre only recomndes you use Pentium D, Pentium 4 HT, or Celeron D. many people have tried this and have had alot of problems and little success.

May 04, 2011 | Intel Gigabyte GA-8I945P-G Dual-Core CPU...

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How much ram and at what speed will i get best performance all around onn a P4P 800M mobo ? Is running a 2.4G asus processor and has 2 256 sticks running at 44g mhz. I would like to use 1 gig sticks but...


As far as i remember that motherboard has 4 DIMM (ram) slots supporting a maximum of 4GB DDR400/333/266 memory also it has Dual Channel Memory Architecture.


Apr 21, 2011 | ASUS P4P800 Motherboard

1 Answer

Ok i have 2 1gb corsair memory sticks and when i put them both in they wont work but when i use one it will its the slot on the mother board i think is there anyway to fix it

try the known good memory stick and try to reseat the memory stick to every slot that your mobo have. so you would know if the problem is with the mobo or the memory stick itself

Mar 29, 2010 | EliteGroup ECS 915P-A2 Intel 915P Socket...

2 Answers

PC2700 or PC3200 DDR memory in this mobo ?

MEMORY ecs_buttom_03.gif 2 x 184-pin DDR DIMM socket support up to 2 GB ecs_buttom_03.gif Support DDR400/333/266 DDR SDRAM

Copied above from ECS website so the answer would yes as it supports up to 3.2GB/s transfer rates at DDR400

May 14, 2009 | VIA ECS PM800-M2 PM800 P4FSB 800 Supports...

1 Answer

Does GA-8I945P motherboard support high density memory?

You have 4 slots available. Each slot can take a 1gb non ecc memory module with the specs below.

4 DDR II DIMM memory slots (supports up to 4GB memory) 
Supports 1.8V DDR II DIMM 
Supports dual channel DDR II 667/533/400 DIMM

Mar 22, 2009 | ASUS P4VP-MX Motherboard

1 Answer

Problems with Foxconn 6100K8MA-RS Motherboard memory upgrade

This is an oldtime POST code memory error. Likely that ram is either installed wrong, bad RAM or the mobo doesn't like one of the memory sticks.


You must count the beeps.

Mar 17, 2009 | Foxconn 6100K8MA-RS Motherboard

1 Answer

Motherboard compatibility

If you want to replace the mobo always compare the cpu-slot and the memory slots.
Tok a fast look on both of the mobos and both supports same cpu, both supports same memosticks though the the one you have supports ddr2 667mgz and the new one you found supports ddr2 1333+mhz. So you can use it but you may have to buy faster memosticks if you want to use the full power of it.

Here is the support site for the new one:

On that site you will also find all the drivers you may need if you buy it

And here is the support site for the mobo you have:

Now you can compare yourself if you want.
BTW, that GA-EP45-DS3 is a very good mobo

Good luck to you
Please take a moment and rate my help for you


Feb 18, 2009 | Intel Motherboard

1 Answer

Will not POST with 2g of kingston hyperX ram inside

If you are going to call. The question I would ask (Very important), will the board run with CL2 = 2.5v & or CL3 = 2.6 to 2.65volt memory.
This site is Kingston memory setter. Type in the board & it show's the type of memory the board can use. (Click on this link). As you look at the link this is for you're P4M80-M4 board.
This should help. I did not see a bios upgrade for this board that had anything to do with memory. The USA Biostar link is lacking opposed to the global link. The global manual give far more information (In depth), for bios instructions.
Global link:

I'm sure the Kingston link will more than help you the_OCer.
Good luck!


May 21, 2008 | Biostar P4M80-M4 Motherboard

2 Answers

GA-8I945P-G 4GB Ram Problem

you maybe have integrated VGA card or Shared memory VGA card that use the memory in your pc .. your best solution is to buy new VGA Card that have dedicated memory

Dec 28, 2007 | Gigabyte GA-8I945P-G Motherboard

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