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Can you run a DDR3 1600Mhz at 800Mhz?

RaulBataka
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Go to solution Solved by Godlygamer23,

Yup, running something at a lower speed isn't an issue. It's when you want to run it above its advertised specifications that it becomes an issue. The BIOS is what determines the speed the memory runs at, so simply installing into the slot and turning on the laptop should be all that's needed.

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Soo I'm trying to bring back to life my aunt laptop, it's an HP 420, with a pentium dual core t4500 and a intel gl40 chipset so for what I could find it only supports up to 4GB of ddr3 ram at 800Mhz, it came with 1 2GB stick but i'm having trouble finding a match But I found a 4GB ddr3l 1600Mhz stick, Could replace the 2GB with the 4GB one? could that one just run at half speed and be fine?

Further digging let me to finding out that the 2GB stick it currently has is actually 1333Mhz but it does run at 800Mhz soo that's something I guess

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Yup, running something at a lower speed isn't an issue. It's when you want to run it above its advertised specifications that it becomes an issue. The BIOS is what determines the speed the memory runs at, so simply installing into the slot and turning on the laptop should be all that's needed.

"It pays to keep an open mind, but not so open your brain falls out." - Carl Sagan.

If tape can't fix it, nothing can.

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1 hour ago, RaulBataka said:

pentium dual core t4500

1 hour ago, RaulBataka said:

4GB of ddr3 ram at 800Mhz

I'm pretty sure that's actually DDR2 RAM, based on the generation of processor.

Main System (Byarlant): Ryzen 7 3800XT | Asus B350-F Strix | EK 240mm Basic AIO | 16GB G.Skill DDR4 3200MT/s CAS-14 | PNY RTX 3060 Ti XLR8 Gaming Revel Epic-X | Samsung 960 PRO 512GB / Samsung 970 EVO 500GB / Crucial MX500 2TB / Crucial MX500 500GB / WD White 7200RPM 8TB | Corsair RM750X | Intel X540-T2 10G NIC | Inateck USB 3.0 Card | Hyte Y60 Case | Dell U3415W Monitor | Microsoft Modern Keyboard

 

Laptop (Narrative): Lenovo Flex 5 81X20005US | Ryzen 5 4500U | 16GB RAM (soldered) | Vega 6 Graphics | SKHynix P31 1TB NVMe SSD | Intel AX200 Wifi (all-around awesome machine)

 

TrueNAS Server (Veda): Xeon E3-1241v3 | Supermicro X10SLL-F | Corsair H60 | 32GB Micron DDR3L ECC 1600MHz | 4x 10TB WD Whites / 4x 14TB Seagate Exos / 2x 1TB HGST 2.5" / 2x Samsung PM963a 960GB SSD / 1x Kingston 16GB SSD | Seasonic Prime Fanless 500W | Mellanox ConnectX-3 10G NIC | LSI 9207-8i HBA | Fractal Design Node 804 Case (side panels swapped to show off drives)


Media Center/Video Capture (Jesta Cannon): Ryzen 5 1600X | ASRock B450M Pro4 R2.0 | Noctua NH-L12S | 16GB Crucial DDR4 3200MT/s CAS-22 | EVGA GTX750Ti SC | UMIS NVMe SSD 256GB / Seagate 1.5TB HDD | Corsair CX450M | Hauppauge ImpactVCB-PCIe | Mellanox ConnectX-2 10G NIC | LG UH12NS30 BD-ROM | Silverstone Sugo SG-11 Case

 

Camera: Sony ɑ7II w/ Meike Grip | Sony SEL24240 | Samyang 35mm ƒ/2.8 | Sony SEL50F18F | Sony SEL2870 (kit lens) | PNY Elite Perfomance 512GB SDXC card

 

Network:

Spoiler 
(500Mbps↑/500Mbps↓)        ┌─────────────── Office/Rack ──────────────────────────────────────────────────────────────────────────┐
Google Fiber Webpass ────── UniFi Security Gateway ─── UniFi Switch Flex XG ═╦╤╦═ Veda (general traffic)
╔════════════════════════════════════════════════════════════════════════════╝│╚═ Narrative (Asus 2.5G USB NIC)
║ ┌────── Closet ──────┐   ┌─────────────── Bedroom ─────────────────┐        └── UniFi Switch 8-60W ─┬─ Veda (management)
╚═ UniFi Switch Flex XG ═╤═ UniFi Switch Flex XG ═══╦═ Byarlant                                       └─ UniFi CloudKey Gen2 (PoE)
   (PoE)                 │                          ╚═ Jesta Cannon*
                         │ ┌─────────────── Media Center ──────────────────────────────────────────┐
Notes:                   └─ UniFi Switch 8 ─────────┬─ UniFi Access Point nanoHD (PoE)
═══ is Multi-Gigabit                                ├─ Sony Playstation 4 
─── is Gigabit                                      ├─ Pioneer VSX-S520
* = cable passed to Bedroom from Media Center       ├─ Narrative** (Belkin USB-PD Ethernet Dongle)
** = cable passed from Media Center to Bedroom      └─ Work Laptop** (Startech USB-PD Dock)

Retired/Other:

Spoiler

Laptop (Rozen-Zulu): Sony VAIO VPCF13WFX | Core i7-740QM | 8GB Patriot DDR3 | GT 425M | Kingston 120GB SSD | Blu-ray Drive | Intel 7260 Wifi (lived a good life, retired with honor)

 

Testbed/Old Desktop (Kshatriya): Xeon X5470 @ 4.0GHz | ZALMAN CNPS9500 | Gigabyte EP45-UD3L | 8GB Nanya DDR2 400MHz | XFX HD6870 DD | OCZ Vertex 3 Max-IOPS 120GB | Corsair CX430M (?) | HooToo USB 3.0 PCIe Card | NZXT H230 Case (mostly intact, but some parts have been scavenged)

 

Parts: XFX RX 5600 XT THICC II | Mellanox ConnectX-3 10G NIC

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6 minutes ago, AbydosOne said:

I'm pretty sure that's actually DDR2 RAM, based on the generation of processor.

the one currently on the laptop

327109173_1265467370701746_163249983012680264_n.jpg

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28 minutes ago, AbydosOne said:

I'm pretty sure that's actually DDR2 RAM, based on the generation of processor.

That CPU uses DDR3 memory.

https://www.techpowerup.com/cpu-specs/pentium-dual-core-t4500.c1366

"It pays to keep an open mind, but not so open your brain falls out." - Carl Sagan.

If tape can't fix it, nothing can.

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15 minutes ago, Godlygamer23 said:

That CPU uses DDR3 memory.

https://www.techpowerup.com/cpu-specs/pentium-dual-core-t4500.c1366

In my defense, the chipset OP listed shows in ARK as supporting DDR2.

 

That said, @RaulBataka, where did you get that it's running at 800MHz? That stick is a 1333MHz stick, and 800MHz would have been extremely slow for DDR3.

Main System (Byarlant): Ryzen 7 3800XT | Asus B350-F Strix | EK 240mm Basic AIO | 16GB G.Skill DDR4 3200MT/s CAS-14 | PNY RTX 3060 Ti XLR8 Gaming Revel Epic-X | Samsung 960 PRO 512GB / Samsung 970 EVO 500GB / Crucial MX500 2TB / Crucial MX500 500GB / WD White 7200RPM 8TB | Corsair RM750X | Intel X540-T2 10G NIC | Inateck USB 3.0 Card | Hyte Y60 Case | Dell U3415W Monitor | Microsoft Modern Keyboard

 

Laptop (Narrative): Lenovo Flex 5 81X20005US | Ryzen 5 4500U | 16GB RAM (soldered) | Vega 6 Graphics | SKHynix P31 1TB NVMe SSD | Intel AX200 Wifi (all-around awesome machine)

 

TrueNAS Server (Veda): Xeon E3-1241v3 | Supermicro X10SLL-F | Corsair H60 | 32GB Micron DDR3L ECC 1600MHz | 4x 10TB WD Whites / 4x 14TB Seagate Exos / 2x 1TB HGST 2.5" / 2x Samsung PM963a 960GB SSD / 1x Kingston 16GB SSD | Seasonic Prime Fanless 500W | Mellanox ConnectX-3 10G NIC | LSI 9207-8i HBA | Fractal Design Node 804 Case (side panels swapped to show off drives)


Media Center/Video Capture (Jesta Cannon): Ryzen 5 1600X | ASRock B450M Pro4 R2.0 | Noctua NH-L12S | 16GB Crucial DDR4 3200MT/s CAS-22 | EVGA GTX750Ti SC | UMIS NVMe SSD 256GB / Seagate 1.5TB HDD | Corsair CX450M | Hauppauge ImpactVCB-PCIe | Mellanox ConnectX-2 10G NIC | LG UH12NS30 BD-ROM | Silverstone Sugo SG-11 Case

 

Camera: Sony ɑ7II w/ Meike Grip | Sony SEL24240 | Samyang 35mm ƒ/2.8 | Sony SEL50F18F | Sony SEL2870 (kit lens) | PNY Elite Perfomance 512GB SDXC card

 

Network:

Spoiler 
(500Mbps↑/500Mbps↓)        ┌─────────────── Office/Rack ──────────────────────────────────────────────────────────────────────────┐
Google Fiber Webpass ────── UniFi Security Gateway ─── UniFi Switch Flex XG ═╦╤╦═ Veda (general traffic)
╔════════════════════════════════════════════════════════════════════════════╝│╚═ Narrative (Asus 2.5G USB NIC)
║ ┌────── Closet ──────┐   ┌─────────────── Bedroom ─────────────────┐        └── UniFi Switch 8-60W ─┬─ Veda (management)
╚═ UniFi Switch Flex XG ═╤═ UniFi Switch Flex XG ═══╦═ Byarlant                                       └─ UniFi CloudKey Gen2 (PoE)
   (PoE)                 │                          ╚═ Jesta Cannon*
                         │ ┌─────────────── Media Center ──────────────────────────────────────────┐
Notes:                   └─ UniFi Switch 8 ─────────┬─ UniFi Access Point nanoHD (PoE)
═══ is Multi-Gigabit                                ├─ Sony Playstation 4 
─── is Gigabit                                      ├─ Pioneer VSX-S520
* = cable passed to Bedroom from Media Center       ├─ Narrative** (Belkin USB-PD Ethernet Dongle)
** = cable passed from Media Center to Bedroom      └─ Work Laptop** (Startech USB-PD Dock)

Retired/Other:

Spoiler

Laptop (Rozen-Zulu): Sony VAIO VPCF13WFX | Core i7-740QM | 8GB Patriot DDR3 | GT 425M | Kingston 120GB SSD | Blu-ray Drive | Intel 7260 Wifi (lived a good life, retired with honor)

 

Testbed/Old Desktop (Kshatriya): Xeon X5470 @ 4.0GHz | ZALMAN CNPS9500 | Gigabyte EP45-UD3L | 8GB Nanya DDR2 400MHz | XFX HD6870 DD | OCZ Vertex 3 Max-IOPS 120GB | Corsair CX430M (?) | HooToo USB 3.0 PCIe Card | NZXT H230 Case (mostly intact, but some parts have been scavenged)

 

Parts: XFX RX 5600 XT THICC II | Mellanox ConnectX-3 10G NIC

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